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Average Weather in Mimongo Gabon

In Mimongo, the wet season is overcast, the dry season is partly cloudy, and it is warm and oppressive year round. Over the course of the year, the temperature typically varies from 65°F to 83°F and is rarely below 63°F or above 87°F.

Based on the tourism score, the best time of year to visit Mimongo for warm-weather activities is from mid June to late August.

Climate Summary

warmJanFebMarAprMayJunJulAugSepOctNovDecNowNow44%44%14%14%overcastprecipitation: 15.2 inprecipitation: 15.2 in0.1 in0.1 inmuggy: 100%muggy: 100%79%79%tourism score: 7.2tourism score: 7.23.23.2
Click on each chart for more information.

Temperature

The temperature in Mimongo varies so little throughout the year that it is not entirely meaningful to discuss hot and cold seasons.

Average High and Low Temperature

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.

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

Average Hourly Temperature in MimongoJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMNowNowcomfortablecomfortablewarm
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.

Portovelo, Ecuador (6,303 miles away); Mandeville, Jamaica (6,202 miles); and San Juan de Colón, Venezuela (5,821 miles) are the far-away foreign places with temperatures most similar to Mimongo (view comparison).

Clouds

In Mimongo, 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 Mimongo begins around June 3 and lasts for 3.1 months, ending around September 7. On July 16, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 44% of the time, and overcast or mostly cloudy 56% of the time.

The cloudier part of the year begins around September 7 and lasts for 8.9 months, ending around June 3. On April 23, the cloudiest day of the year, the sky is overcast or mostly cloudy 86% of the time, and clear, mostly clear, or partly cloudy 14% of the time.

Cloud Cover Categories

Cloud Cover Categories in MimongoclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 1644%Jul 1644%Apr 2314%Apr 2314%Jun 328%Jun 328%Sep 729%Sep 729%NowNowmostly clearpartly cloudymostly cloudyovercastclear
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.

Precipitation

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

The wetter season lasts 8.0 months, from September 24 to May 23, with a greater than 44% chance of a given day being a wet day. The chance of a wet day peaks at 88% on November 10.

The drier season lasts 4.0 months, from May 23 to September 24. The smallest chance of a wet day is 1% on July 10.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 88% on November 10.

Daily Chance of Precipitation

Daily Chance of Precipitation in MimongowetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Nov 1088%Nov 1088%Jul 101%Jul 101%Sep 2444%Sep 2444%May 2344%May 2344%rain
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).

Rainfall

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. Mimongo experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 10 months, from August 24 to June 24, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around November 6, with an average total accumulation of 15.2 inches.

The rainless period of the year lasts for 2.0 months, from June 24 to August 24. The least rain falls around July 12, with an average total accumulation of 0.1 inches.

Average Monthly Rainfall

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 liquid-equivalent snowfall.

Sun

The length of the day in Mimongo does not vary substantially over the course of the year, staying within 13 minutes of 12 hours throughout. In 2020, the shortest day is June 20, with 12 hours, 2 minutes of daylight; the longest day is December 21, with 12 hours, 13 minutes of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight in MimongoJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minSep 2212 hr, 6 minSep 2212 hr, 13 minDec 2112 hr, 13 minDec 2112 hr, 7 minMar 2012 hr, 7 minMar 2012 hr, 2 minJun 2012 hr, 2 minJun 20daydaynightNowNow
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.

The earliest sunrise is at 5:51 AM on November 5, and the latest sunrise is 31 minutes later at 6:22 AM on February 14. The earliest sunset is at 6:02 PM on October 30, and the latest sunset is 31 minutes later at 6:32 PM on February 8.

Daylight saving time (DST) is not observed in Mimongo during 2020.

Sunrise & Sunset with Twilight

Sunrise & Sunset with Twilight in MimongoJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMNov 55:51 AMNov 55:51 AM6:32 PMFeb 86:32 PMFeb 8Oct 306:02 PMOct 306:02 PM6:22 AMFeb 146:22 AMFeb 14daynightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2020. 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.

Humidity

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.

Mimongo experiences some seasonal variation in the perceived humidity.

The muggier period of the year lasts for 11 months, from August 18 to July 13, during which time the comfort level is muggy, oppressive, or miserable at least 84% of the time. The muggiest day of the year is April 15, with muggy conditions 100% of the time.

The least muggy day of the year is July 30, with muggy conditions 79% of the time.

Humidity Comfort Levels

Humidity Comfort Levels in MimongomuggymuggyJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jul 3079%Jul 3079%100%Apr 15100%Apr 15NowNowoppressiveoppressivemuggymuggymiserablemiserable
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.

Wind

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 Mimongo does not vary significantly over the course of the year, remaining within 0.3 miles per hour of 1.7 miles per hour throughout.

Average Wind Speed

Average Wind Speed in MimongoJanFebMarAprMayJunJulAugSepOctNovDec0.0 mph0.5 mph1.0 mph1.5 mph2.0 mph2.5 mphAug 92.1 mphAug 92.1 mphMay 91.4 mphMay 91.4 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

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

The wind is most often from the south for 4.6 months, from February 20 to July 8 and for 3.7 weeks, from November 10 to December 6, with a peak percentage of 59% on June 14. The wind is most often from the west for 4.1 months, from July 8 to November 10 and for 2.5 months, from December 6 to February 20, with a peak percentage of 68% on August 27.

Wind Direction

Wind Direction in MimongoWSWSWJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsoutheast
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).

Best Time of Year to Visit

To characterize how pleasant the weather is in Mimongo 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 time of year to visit Mimongo for general outdoor tourist activities is from mid June to late August, with a peak score in the third week of July.

Tourism Score

Tourism Score in Mimongobest timeJanFebMarAprMayJunJulAugSepOctNovDec02468107.27.23.23.2NowNow precipitationprecipitationtemperaturetemperaturetourism 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 Mimongo for hot-weather activities is from early June to mid September, with a peak score in the last week of June.

Beach/Pool Score

Beach/Pool Score in Mimongobest timeJanFebMarAprMayJunJulAugSepOctNovDec02468106.56.53.33.34.84.84.34.3NowNow precipitationprecipitationcloudscloudstemperaturetemperaturebeach/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.

Growing Season

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 Mimongo 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

Time Spent in Various Temperature Bands and the Growing Season in MimongoJanFebMarAprMayJunJulAugSepOctNovDec0%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 2NowNowcomfortablewarmcoolhot
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

Growing Degree Days in MimongoJanFebMarAprMayJunJulAugSepOctNovDec0°F1,000°F2,000°F3,000°F4,000°F5,000°F6,000°F7,000°F8,000°F9,000°FJul 590°FJul 590°FAug 12900°FAug 12900°FJun 308,683°FJun 308,683°F
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

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 per square meter does not vary significantly over the course of the year, remaining within 0.4 kilowatt-hours of 4.5 kilowatt-hours throughout.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy in MimongoJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWhSep 14.9 kWhSep 14.9 kWhMay 84.1 kWhMay 84.1 kWhJul 194.8 kWhJul 194.8 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.

Topography

For the purposes of this report, the geographical coordinates of Mimongo are -1.620 deg latitude, 11.607 deg longitude, and 1,870 ft elevation.

The topography within 2 miles of Mimongo contains significant variations in elevation, with a maximum elevation change of 689 feet and an average elevation above sea level of 1,870 feet. Within 10 miles contains significant variations in elevation (1,509 feet). Within 50 miles contains very significant variations in elevation (3,120 feet).

The area within 2 miles of Mimongo is covered by trees (66%), grassland (17%), and shrubs (13%), within 10 miles by trees (94%), and within 50 miles by trees (86%).

Data Sources

This report illustrates the typical weather in Mimongo, 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 is only a single weather station, Lambaréné Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Mimongo.

At a distance of 183 kilometers from Mimongo, further than our threshold of 150 kilometers, this station is deemed insufficiently nearby to be relied upon as our primary source for temperature and dew point records. Consequently, the station records are blended with interpolated values from NASA's MERRA-2 satellite-era reanalysis , and both are corrected for elevation differences according to the International Standard Atmosphere .

The weight assigned to the MERRA-2 value depends on the distance from Mimongo to the nearest station, increasing from 0% at 150 kilometers to 100% at 200 kilometers. In this case, the MERRA-2 weight is 39%, making the weight assigned to the weather station 61%.

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 aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

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.