Climate Insights for Apatou

Guyane, Guyane, French Guiana

Hottest
October
34°C peak
Coldest
January
23°C low
Wettest
May
447mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Apatou is hot. The average annual temperature is 26°C and approximately 2271mm of precipitation falls per year. Apatou receives a notable amount of rainfall throughout the year, including during its driest month. Apatou sits near the equator, so seasonal temperature differences are minimal throughout the year.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 30° Average: 26° Min: 23° Feb Max: 30° Average: 26° Min: 23° Mar Max: 31° Average: 26° Min: 23° Apr Max: 30° Average: 26° Min: 23° May Max: 30° Average: 26° Min: 24° Jun Max: 30° Average: 26° Min: 23° Jul Max: 31° Average: 26° Min: 23° Aug Max: 32° Average: 27° Min: 23° Sep Max: 34° Average: 28° Min: 23° Oct Max: 34° Average: 28° Min: 23° Nov Max: 32° Average: 27° Min: 24° Dec Max: 30° Average: 26° Min: 23°
Max
Average
Min

Apatou sees moderate temperature variation throughout the year, ranging from 23°C to 34°C. The warmest month is October, when average highs reach 34°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 23°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm 350mm 400mm 450mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 149mm Feb Precipitation: 140mm Mar Precipitation: 138mm Apr Precipitation: 271mm May Precipitation: 447mm Jun Precipitation: 297mm Jul Precipitation: 234mm Aug Precipitation: 126mm Sep Precipitation: 65mm Oct Precipitation: 59mm Nov Precipitation: 132mm Dec Precipitation: 213mm
Precipitation

Apatou is a very wet location, receiving approximately 2271mm of precipitation annually, which averages out to around 189mm per month. The wettest month is May, averaging 447mm of rainfall. June and April also tend to see above-average precipitation. The driest month is October, with just 59mm. That's 388mm less than May, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Wind

0km/h 5km/h 10km/h 15km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 13km/h Feb Wind Speed: 14km/h Mar Wind Speed: 13km/h Apr Wind Speed: 12km/h May Wind Speed: 11km/h Jun Wind Speed: 10km/h Jul Wind Speed: 9km/h Aug Wind Speed: 10km/h Sep Wind Speed: 11km/h Oct Wind Speed: 12km/h Nov Wind Speed: 12km/h Dec Wind Speed: 12km/h
Wind Speed

Apatou is relatively calm, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 9km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 13km/h in winter, 12km/h in spring, 10km/h in summer, 12km/h in autumn.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

89 days until Summer

It is currently spring in Apatou, which began on March 20, 2026. Apatou sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in October at around 34°C, while the coldest stretch bottoms out in January near 23°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from 23 to 31°C. Rainfall is heavy, totalling around 856mm across the season with a monthly average of 285mm. Winds are generally light, averaging 12km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 23 to 32°C. Rainfall is heavy, totalling around 657mm across the season with a monthly average of 219mm. Winds are generally light, averaging 10km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 23 to 34°C. Precipitation is moderate at around 256mm for the season, averaging 85mm per month. Winds are generally light, averaging 12km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 23 to 30°C. Rainfall is heavy, totalling around 502mm across the season with a monthly average of 167mm. Winds are generally light, averaging 13km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Monthly Climate Data

The table below shows monthly climate averages for Apatou based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
23 °C
30 °C
13 km/h
149 mm
0 cm
Feb
23 °C
30 °C
14 km/h
140 mm
0 cm
Mar Current
23 °C
31 °C
13 km/h
138 mm
0 cm
Apr
23 °C
30 °C
12 km/h
271 mm
0 cm
May
24 °C
30 °C
11 km/h
447 mm
0 cm
Jun
23 °C
30 °C
10 km/h
297 mm
0 cm
Jul
23 °C
31 °C
9 km/h
234 mm
0 cm
Aug
23 °C
32 °C
10 km/h
126 mm
0 cm
Sep
23 °C
34 °C
11 km/h
65 mm
0 cm
Oct
23 °C
34 °C
12 km/h
59 mm
0 cm
Nov
24 °C
32 °C
12 km/h
132 mm
0 cm
Dec
23 °C
30 °C
12 km/h
213 mm
0 cm
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Metric (°C, km/h)