Climate Insights for Iboundji

, Estuaire, Gabon

Hottest
March
30°C peak
Coldest
August
23°C low
Wettest
November
404mm rain
Best to Visit
July, August
Mild temps & low rain

Climate Overview

The climate in Iboundji is hot. The average annual temperature is 26°C and approximately 2619mm of precipitation falls per year. Iboundji receives a notable amount of rainfall throughout the year, including during its driest month. Iboundji sits near the equator, so seasonal temperature differences are minimal throughout the year.

Temperature

10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 29° Average: 26° Min: 24° Feb Max: 30° Average: 27° Min: 25° Mar Max: 30° Average: 27° Min: 25° Apr Max: 30° Average: 27° Min: 25° May Max: 29° Average: 27° Min: 25° Jun Max: 28° Average: 26° Min: 24° Jul Max: 27° Average: 25° Min: 23° Aug Max: 27° Average: 25° Min: 23° Sep Max: 28° Average: 25° Min: 24° Oct Max: 28° Average: 26° Min: 24° Nov Max: 29° Average: 26° Min: 24° Dec Max: 29° Average: 26° Min: 24°
Max
Average
Min

Iboundji has relatively stable temperatures year-round, staying within a 7°C range. The warmest month is March, when average highs reach 30°C and the mean temperature sits around 27°C. August is the coolest month, with minimum temperatures around 23°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 5°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: 206mm Feb Precipitation: 205mm Mar Precipitation: 273mm Apr Precipitation: 251mm May Precipitation: 246mm Jun Precipitation: 112mm Jul Precipitation: 34mm Aug Precipitation: 52mm Sep Precipitation: 178mm Oct Precipitation: 387mm Nov Precipitation: 404mm Dec Precipitation: 271mm
Precipitation

Iboundji is a very wet location, receiving approximately 2619mm of precipitation annually, which averages out to around 218mm per month. The wettest month is November, averaging 404mm of rainfall. October and March also tend to see above-average precipitation. The driest month is July, with just 34mm. That's 370mm less than November, 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: 11km/h Feb Wind Speed: 11km/h Mar Wind Speed: 11km/h Apr Wind Speed: 11km/h May Wind Speed: 11km/h Jun Wind Speed: 12km/h Jul Wind Speed: 13km/h Aug Wind Speed: 13km/h Sep Wind Speed: 13km/h Oct Wind Speed: 12km/h Nov Wind Speed: 11km/h Dec Wind Speed: 11km/h
Wind Speed

Iboundji 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 August, averaging 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 11km/h in winter, 11km/h in spring, 13km/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 Iboundji, which began on March 20, 2026. Iboundji sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in March at around 30°C, while the coldest stretch bottoms out in August near 23°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from 25 to 30°C. Rainfall is heavy, totalling around 770mm across the season with a monthly average of 257mm. Winds are generally light, averaging 11km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 23 to 28°C. Precipitation is moderate at around 198mm for the season, averaging 66mm per month. Winds are generally light, averaging 13km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 24 to 29°C. Rainfall is heavy, totalling around 970mm across the season with a monthly average of 323mm. Winds are generally light, averaging 12km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 24 to 30°C. Rainfall is heavy, totalling around 681mm across the season with a monthly average of 227mm. Winds are generally light, averaging 11km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan 26°
Feb 27°
Mar 27°
Apr 27°
May 27°
Jun 26°
Jul 25°
Aug 25°
Sep 25°
Oct 26°
Nov 26°
Dec 26°

The best time to visit Iboundji is during July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 25°C with modest rainfall averaging 43mm per month. By contrast, March can be uncomfortably hot with temperatures reaching 30°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

Monthly Climate Data

The table below shows monthly climate averages for Iboundji 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
24 °C
29 °C
11 km/h
206 mm
0 cm
Feb
25 °C
30 °C
11 km/h
205 mm
0 cm
Mar Current
25 °C
30 °C
11 km/h
273 mm
0 cm
Apr
25 °C
30 °C
11 km/h
251 mm
0 cm
May
25 °C
29 °C
11 km/h
246 mm
0 cm
Jun
24 °C
28 °C
12 km/h
112 mm
0 cm
Jul
23 °C
27 °C
13 km/h
34 mm
0 cm
Aug
23 °C
27 °C
13 km/h
52 mm
0 cm
Sep
24 °C
28 °C
13 km/h
178 mm
0 cm
Oct
24 °C
28 °C
12 km/h
387 mm
0 cm
Nov
24 °C
29 °C
11 km/h
404 mm
0 cm
Dec
24 °C
29 °C
11 km/h
271 mm
0 cm
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Metric (°C, km/h)