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Climate and Average Weather Year Round in Diang Cameroon

In Diang, the wet season is overcast, the dry season is mostly cloudy, and it is hot and oppressive year round. Over the course of the year, the temperature typically varies from 73°F to 91°F and is rarely below 69°F or above 94°F.

Based on the beach/pool score, the best time of year to visit Diang for hot-weather activities is from late November to early February.

Climate in Diang

hotwarmhotJanFebMarAprMayJunJulAugSepOctNovDecNowNow37%37%11%11%overcastclearprecipitation: 15.4 inprecipitation: 15.4 in0.7 in0.7 inmuggy: 100%muggy: 100%99%99%beach/pool score: 5.5beach/pool score: 5.53.33.3
Diang weather by month. Click on each chart for more information.

The hot season lasts for 4.2 months, from December 20 to April 26, with an average daily high temperature above 89°F. The hottest month of the year in Diang is February, with an average high of 91°F and low of 74°F.

The cool season lasts for 2.1 months, from July 3 to September 8, with an average daily high temperature below 83°F. The coldest month of the year in Diang is August, with an average low of 73°F and high of 82°F.

Average High and Low Temperature in Diang

Average High and Low Temperature in DianghotcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°F110°F110°FOct 2186°FOct 2186°FFeb 1891°FFeb 1891°F73°F73°F74°F74°FDec 2089°FDec 2089°FApr 2689°FApr 2689°FJul 383°FJul 383°FSep 883°FSep 883°F73°F73°F74°F74°F73°F73°F73°F73°FNowNow
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.
AverageJanFebMarAprMayJunJulAugSepOctNovDec
High 90°F91°F90°F89°F88°F85°F82°F82°F84°F86°F87°F89°F
Temp. 80°F81°F81°F80°F80°F78°F77°F76°F77°F78°F79°F80°F
Low 73°F74°F74°F74°F74°F73°F73°F73°F73°F73°F73°F73°F

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in Diang

Average Hourly Temperature in DiangJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNowNowcomfortablewarmwarmwarmhothotcomfortable
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Canoas, Costa Rica (6,376 miles away); Depok, Indonesia (6,724 miles); and Makassar, Indonesia (7,587 miles) are the far-away foreign places with temperatures most similar to Diang (view comparison).

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In Diang, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Diang begins around November 19 and lasts for 3.2 months, ending around February 25.

The clearest month of the year in Diang is January, during which on average the sky is clear, mostly clear, or partly cloudy 34% of the time.

The cloudier part of the year begins around February 25 and lasts for 8.8 months, ending around November 19.

The cloudiest month of the year in Diang is April, during which on average the sky is overcast or mostly cloudy 88% of the time.

Cloud Cover Categories in Diang

Cloud Cover Categories in DiangclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Dec 2937%Dec 2937%Apr 2011%Apr 2011%Feb 2524%Feb 2524%NowNowclearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.
FractionJanFebMarAprMayJunJulAugSepOctNovDec
Cloudier 66%73%83%88%85%77%75%77%79%83%78%66%
Clearer 34%27%17%12%15%23%25%23%21%17%22%34%

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Diang varies very significantly throughout the year.

The wetter season lasts 8.0 months, from March 16 to November 15, with a greater than 48% chance of a given day being a wet day. The month with the most wet days in Diang is September, with an average of 25.9 days with at least 0.04 inches of precipitation.

The drier season lasts 4.0 months, from November 15 to March 16. The month with the fewest wet days in Diang is January, with an average of 3.2 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Diang is September, with an average of 25.9 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 88% on October 17.

Daily Chance of Precipitation in Diang

Daily Chance of Precipitation in DiangwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Oct 1788%Oct 1788%Jan 17%Jan 17%Mar 1648%Mar 1648%Nov 1548%Nov 1548%NowNowrain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).
Days ofJanFebMarAprMayJunJulAugSepOctNovDec
Rain 3.2d6.3d15.4d20.7d22.8d22.7d23.8d25.7d25.9d26.7d14.4d3.7d

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Diang experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Diang. The month with the most rain in Diang is August, with an average rainfall of 15.4 inches.

The month with the least rain in Diang is January, with an average rainfall of 0.8 inches.

Average Monthly Rainfall in Diang

Average Monthly Rainfall in DiangJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in5 in5 in10 in10 in15 in15 in20 in20 in25 in25 in30 in30 inAug 1815.4 inAug 1815.4 inJan 40.7 inJan 40.7 inNowNow
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Rainfall 0.8″1.6″4.8″6.8″7.9″10.8″13.3″15.4″14.4″11.8″5.2″1.0″

The length of the day in Diang does not vary substantially over the course of the year, staying within 22 minutes of 12 hours throughout. In 2024, the shortest day is December 21, with 11 hours, 53 minutes of daylight; the longest day is June 20, with 12 hours, 22 minutes of daylight.

Hours of Daylight and Twilight in Diang

Hours of Daylight and Twilight in DiangJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minMar 2012 hr, 6 minMar 2012 hr, 22 minJun 2012 hr, 22 minJun 2012 hr, 7 minSep 2212 hr, 7 minSep 2211 hr, 53 minDec 2111 hr, 53 minDec 21nightnightdayNowNow
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.
Hours ofJanFebMarAprMayJunJulAugSepOctNovDec
Daylight 11.9h12.0h12.1h12.2h12.3h12.4h12.3h12.2h12.1h12.0h11.9h11.9h

The earliest sunrise is at 6:04 AM on October 26, and the latest sunrise is 31 minutes later at 6:35 AM on February 4. The earliest sunset is at 6:02 PM on November 8, and the latest sunset is 34 minutes later at 6:36 PM on July 18.

Daylight saving time (DST) is not observed in Diang during 2024.

Sunrise & Sunset with Twilight in Diang

Sunrise & Sunset with Twilight in DiangJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMOct 266:04 AMOct 266:04 AM6:36 PMJul 186:36 PMJul 18Nov 86:02 PMNov 86:02 PM6:35 AMFeb 46:35 AMFeb 4daynightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2024. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in Diang

Solar Elevation and Azimuth in DiangJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AM0000101010102020202030303030404040405050505060606060707070808000001010101020202020303030304040404050505050606060607070708062NowNow
northeastsouthwest
Solar elevation and azimuth over the course of the year 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

Moon Rise, Set & Phases in Diang

The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The perceived humidity level in Diang, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 1% of 99% throughout.

Humidity Comfort Levels in Diang

Humidity Comfort Levels in DiangJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jan 1699%Jan 1699%100%May 2100%May 2NowNowmiserablemiserableoppressiveoppressivemuggymuggy
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.
JanFebMarAprMayJunJulAugSepOctNovDec
Muggy days 30.7d28.8d31.0d30.0d31.0d30.0d31.0d31.0d30.0d31.0d30.0d30.9d

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Diang experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 3.5 months, from June 9 to September 26, with average wind speeds of more than 3.4 miles per hour. The windiest month of the year in Diang is August, with an average hourly wind speed of 4.1 miles per hour.

The calmer time of year lasts for 8.5 months, from September 26 to June 9. The calmest month of the year in Diang is November, with an average hourly wind speed of 2.7 miles per hour.

Average Wind Speed in Diang

Average Wind Speed in DiangwindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mphAug 14.2 mphAug 14.2 mphNov 222.7 mphNov 222.7 mphJun 93.4 mphJun 93.4 mphSep 263.4 mphSep 263.4 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Wind Speed (mph) 3.13.23.23.13.13.54.04.13.63.12.72.8

The predominant average hourly wind direction in Diang varies throughout the year.

The wind is most often from the south for 3.7 weeks, from June 23 to July 19, with a peak percentage of 50% on July 3. The wind is most often from the west for 11 months, from July 19 to June 23, with a peak percentage of 44% on January 1.

Wind Direction in Diang

Wind Direction in DiangWSWJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsouthnortheast
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Diang is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.6 months, from February 11 to May 31, with an average temperature above 83°F. The month of the year in Diang with the warmest water is April, with an average temperature of 85°F.

The time of year with cooler water lasts for 2.1 months, from July 14 to September 17, with an average temperature below 80°F. The month of the year in Diang with the coolest water is August, with an average temperature of 79°F.

Average Water Temperature in Diang

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 83°F84°F84°F85°F84°F82°F80°F79°F80°F81°F83°F83°F

To characterize how pleasant the weather is in Diang throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best times of year to visit Diang for general outdoor tourist activities are from late June to mid August and from late November to late January, with a peak score in the last week of December.

Tourism Score in Diang

Tourism Score in Diangbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810103.63.62.22.23.53.52.62.6NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationtourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Diang for hot-weather activities is from late November to early February, with a peak score in the last week of December.

Beach/Pool Score in Diang

Beach/Pool Score in DiangJanFebMarAprMayJunJulAugSepOctNovDec002244668810105.55.53.33.34.44.43.53.5NowNowtemperaturetemperature precipitationprecipitationbeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Temperatures in Diang are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

Time Spent in Various Temperature Bands and the Growing Season in Diang

Time Spent in Various Temperature Bands and the Growing Season in DiangJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%100%Jan 1100%Jan 1100%Jul 2100%Jul 2NowNowcomfortablewarmhot
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Growing Degree Days in Diang

Growing Degree Days in DiangJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F2,000°F2,000°F4,000°F4,000°F6,000°F6,000°F8,000°F8,000°F10,000°F10,000°FJan 490°FJan 490°FDec 3110,440°FDec 3110,440°FNowNow
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences some seasonal variation over the course of the year.

The brighter period of the year lasts for 1.7 months, from December 28 to February 19, with an average daily incident shortwave energy per square meter above 4.7 kWh. The brightest month of the year in Diang is January, with an average of 4.9 kWh.

The darker period of the year lasts for 1.3 months, from October 5 to November 15, with an average daily incident shortwave energy per square meter below 3.8 kWh. The darkest month of the year in Diang is October, with an average of 3.7 kWh.

Average Daily Incident Shortwave Solar Energy in Diang

Average Daily Incident Shortwave Solar Energy in DiangbrightdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWhJan 234.9 kWhJan 234.9 kWhOct 283.6 kWhOct 283.6 kWhDec 284.7 kWhDec 284.7 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 4.94.74.03.83.83.94.14.24.13.73.84.4

For the purposes of this report, the geographical coordinates of Diang are 4.250 deg latitude, 10.017 deg longitude, and 184 ft elevation.

The topography within 2 miles of Diang contains significant variations in elevation, with a maximum elevation change of 492 feet and an average elevation above sea level of 255 feet. Within 10 miles also contains significant variations in elevation (745 feet). Within 50 miles contains significant variations in elevation (6,781 feet).

The area within 2 miles of Diang is covered by trees (80%), within 10 miles by trees (73%) and cropland (14%), and within 50 miles by trees (58%) and cropland (16%).

This report illustrates the typical weather in Diang, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Diang.

For each station, the records are corrected for the elevation difference between that station and Diang according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Diang is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Diang and a given station.

The stations contributing to this reconstruction are:

  • Douala Obs. (FKKD, 90%, 27 mi, southwest, -151 ft elevation change)
  • Yaounde (FKYS, 10%, 112 mi, east, 2,093 ft elevation change)

To get a sense of how much these sources agree with each other, you can view a comparison of Diang and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

Please review our full terms contained on our Terms of Service page.