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Climate and Average Weather Year Round in Siguiri Guinea

In Siguiri, the wet season is hot, oppressive, and overcast and the dry season is sweltering and partly cloudy. Over the course of the year, the temperature typically varies from 61°F to 103°F and is rarely below 55°F or above 107°F.

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

Climate in Siguiri

hotswelteringhotwarmhotJanFebMarAprMayJunJulAugSepOctNovDecNowNow64%64%24%24%overcastclearprecipitation: 12.0 inprecipitation: 12.0 in0.0 in0.0 inmuggy: 100%muggy: 100%0%0%drydrybeach/pool score: 7.5beach/pool score: 7.54.24.2
Siguiri weather by month. Click on each chart for more information.

The hot season lasts for 2.7 months, from February 15 to May 7, with an average daily high temperature above 99°F. The hottest month of the year in Siguiri is April, with an average high of 102°F and low of 77°F.

The cool season lasts for 3.3 months, from July 6 to October 17, with an average daily high temperature below 87°F. The coldest month of the year in Siguiri is December, with an average low of 61°F and high of 91°F.

Average High and Low Temperature in Siguiri

Average High and Low Temperature in SiguirihotcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°F110°F110°FDec 2592°FDec 2592°FMar 31103°FMar 31103°F61°F61°F76°F76°FFeb 1599°FFeb 1599°FMay 799°FMay 799°FJul 687°FJul 687°FOct 1787°FOct 1787°F67°F67°F77°F77°F72°F72°F71°F71°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 95°F99°F102°F102°F98°F91°F85°F83°F84°F87°F89°F91°F
Temp. 77°F82°F87°F90°F87°F82°F78°F76°F77°F78°F77°F75°F
Low 63°F67°F73°F77°F76°F74°F72°F71°F71°F70°F66°F61°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 Siguiri

Average Hourly Temperature in SiguiriJanFebMarAprMayJunJulAugSepOctNovDec12 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 AMNowNowcoolcoolcomfortablecomfortablecomfortablewarmhothotswelteringwarmcomfortablecomfortable
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.

Terdāl, India (5,625 miles away) is the far-away foreign place with temperatures most similar to Siguiri (view comparison).

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In Siguiri, 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 Siguiri begins around October 28 and lasts for 5.2 months, ending around April 3.

The clearest month of the year in Siguiri is January, during which on average the sky is clear, mostly clear, or partly cloudy 62% of the time.

The cloudier part of the year begins around April 3 and lasts for 6.8 months, ending around October 28.

The cloudiest month of the year in Siguiri is August, during which on average the sky is overcast or mostly cloudy 75% of the time.

Cloud Cover Categories in Siguiri

Cloud Cover Categories in SiguiriclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jan 2564%Jan 2564%Aug 424%Aug 424%Oct 2844%Oct 2844%Apr 344%Apr 344%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 38%40%50%61%65%61%71%75%68%61%49%42%
Clearer 62%60%50%39%35%39%29%25%32%39%51%58%

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

The wetter season lasts 4.8 months, from May 18 to October 11, with a greater than 45% chance of a given day being a wet day. The month with the most wet days in Siguiri is August, with an average of 27.7 days with at least 0.04 inches of precipitation.

The drier season lasts 7.2 months, from October 11 to May 18. The month with the fewest wet days in Siguiri is December, with an average of 0.1 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 Siguiri is August, with an average of 27.7 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 90% on August 7.

Daily Chance of Precipitation in Siguiri

Daily Chance of Precipitation in SiguiriwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Aug 790%Aug 790%Dec 140%Dec 140%May 1845%May 1845%Oct 1145%Oct 1145%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 0.1d0.2d0.8d5.3d13.9d21.4d25.9d27.7d22.9d11.8d1.5d0.1d

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. Siguiri experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 7.1 months, from April 4 to November 8, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Siguiri is August, with an average rainfall of 11.9 inches.

The rainless period of the year lasts for 4.9 months, from November 8 to April 4. The month with the least rain in Siguiri is January, with an average rainfall of 0.0 inches.

Average Monthly Rainfall in Siguiri

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 0.0″0.0″0.1″1.0″2.9″6.1″9.4″11.9″8.2″2.5″0.3″0.0″

The length of the day in Siguiri does not vary substantially over the course of the year, staying within 47 minutes of 12 hours throughout. In 2024, the shortest day is December 21, with 11 hours, 27 minutes of daylight; the longest day is June 20, with 12 hours, 48 minutes of daylight.

Hours of Daylight and Twilight in Siguiri

Hours of Daylight and Twilight in SiguiriJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minMar 2012 hr, 6 minMar 2012 hr, 48 minJun 2012 hr, 48 minJun 2012 hr, 7 minSep 2212 hr, 7 minSep 2211 hr, 27 minDec 2111 hr, 27 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 11.5h11.8h12.1h12.4h12.7h12.8h12.7h12.5h12.2h11.9h11.6h11.5h

The earliest sunrise is at 6:12 AM on May 29, and the latest sunrise is 49 minutes later at 7:01 AM on January 26. The earliest sunset is at 6:09 PM on November 17, and the latest sunset is 55 minutes later at 7:04 PM on July 10.

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

Sunrise & Sunset with Twilight in Siguiri

Sunrise & Sunset with Twilight in SiguiriJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMMay 296:12 AMMay 296:12 AM7:04 PMJul 107:04 PMJul 10Nov 176:09 PMNov 176:09 PM7:01 AMJan 267:01 AMJan 26daynightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
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 Siguiri

Solar Elevation and Azimuth in SiguiriJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM00001010101020202020303030304040404050505050606060707080000010101010202020203030303040404040505050506060607070808055NowNow
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 Siguiri

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.

Siguiri experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 7.1 months, from April 13 to November 17, during which time the comfort level is muggy, oppressive, or miserable at least 25% of the time. The month with the most muggy days in Siguiri is August, with 31.0 days that are muggy or worse.

The month with the fewest muggy days in Siguiri is January, with 0.2 days that are muggy or worse.

Humidity Comfort Levels in Siguiri

Humidity Comfort Levels in SiguirimuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Dec 300%Dec 300%100%Aug 28100%Aug 28Apr 1325%Apr 1325%Nov 1725%Nov 1725%NowNowoppressiveoppressivemuggymuggydrydryhumidhumidmiserablemiserablecomfortablecomfortable
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 0.2d0.3d1.4d9.0d22.2d28.0d30.7d31.0d29.9d27.7d9.3d0.7d

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 Siguiri experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 6.1 months, from November 29 to June 3, with average wind speeds of more than 6.4 miles per hour. The windiest month of the year in Siguiri is January, with an average hourly wind speed of 8.2 miles per hour.

The calmer time of year lasts for 5.9 months, from June 3 to November 29. The calmest month of the year in Siguiri is October, with an average hourly wind speed of 4.5 miles per hour.

Average Wind Speed in Siguiri

Average Wind Speed in SiguiriwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mphJan 268.3 mphJan 268.3 mphOct 154.4 mphOct 154.4 mphNov 296.4 mphNov 296.4 mphJun 36.4 mphJun 36.4 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) 8.28.07.37.26.96.05.85.84.94.55.57.4

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

The wind is most often from the south for 2.7 months, from April 4 to June 25, with a peak percentage of 50% on May 19. The wind is most often from the west for 2.7 months, from June 25 to September 17, with a peak percentage of 54% on July 30. The wind is most often from the east for 6.6 months, from September 17 to April 4, with a peak percentage of 75% on January 1.

Wind Direction in Siguiri

Wind Direction in SiguiriESWEJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsoutheastnorth
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).

To characterize how pleasant the weather is in Siguiri 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 Siguiri for general outdoor tourist activities is from mid November to late January, with a peak score in the last week of December.

Tourism Score in Siguiri

Tourism Score in Siguiribest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.66.62.52.5NowNowtemperaturetemperature 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 Siguiri for hot-weather activities is from late October to early March, with a peak score in the last week of January.

Beach/Pool Score in Siguiri

Beach/Pool Score in Siguiribest timebest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.57.54.24.27.27.26.96.95.15.14.54.5NowNowtemperaturetemperature 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 Siguiri 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 Siguiri

Time Spent in Various Temperature Bands and the Growing Season in SiguiriJanFebMarAprMayJunJulAugSepOctNovDec0%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 2NowNowcoolcomfortablewarmhotsweltering
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 Siguiri

Growing Degree Days in SiguiriJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F2,000°F2,000°F4,000°F4,000°F6,000°F6,000°F8,000°F8,000°F10,000°F10,000°FJan 590°FJan 590°FMar 71,800°FMar 71,800°FDec 3110,390°FDec 3110,390°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 2.3 months, from February 12 to April 22, with an average daily incident shortwave energy per square meter above 6.2 kWh. The brightest month of the year in Siguiri is March, with an average of 6.5 kWh.

The darker period of the year lasts for 2.8 months, from July 1 to September 24, with an average daily incident shortwave energy per square meter below 5.1 kWh. The darkest month of the year in Siguiri is August, with an average of 4.8 kWh.

Average Daily Incident Shortwave Solar Energy in Siguiri

Average Daily Incident Shortwave Solar Energy in SiguiribrightdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhMar 196.6 kWhMar 196.6 kWhAug 54.8 kWhAug 54.8 kWhSep 245.1 kWhSep 245.1 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) 5.76.26.56.35.75.44.94.85.05.35.55.4

For the purposes of this report, the geographical coordinates of Siguiri are 11.423 deg latitude, -9.169 deg longitude, and 1,207 ft elevation.

The topography within 2 miles of Siguiri contains only modest variations in elevation, with a maximum elevation change of 230 feet and an average elevation above sea level of 1,182 feet. Within 10 miles contains only modest variations in elevation (515 feet). Within 50 miles contains significant variations in elevation (1,890 feet).

The area within 2 miles of Siguiri is covered by artificial surfaces (46%), cropland (27%), and grassland (10%), within 10 miles by cropland (38%) and trees (31%), and within 50 miles by trees (55%) and cropland (21%).

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

Siguiri is further than 200 kilometers from the nearest reliable weather station, so the weather-related data on this page were taken entirely from NASA's MERRA-2 satellite-era reanalysis . 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.

The temperature and dew point estimates are corrected for the difference between the reference elevation of the MERRA-2 grid cell and the elevation of Siguiri, according to the International Standard Atmosphere .

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.

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.