Climate Insights for Bissorã

, Oio Region, Guinea-Bissau

Hottest
April
39°C peak
Coldest
January
19°C low
Wettest
August
466mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Bissorã is hot. The average annual temperature is 28°C and approximately 1388mm of precipitation falls per year. August is the wettest month, receiving around 466mm of rainfall. Bissorã is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: April, March, May. The coldest months are January, December, February, when temperatures can drop to 19°C.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 35° Average: 26° Min: 19° Feb Max: 37° Average: 28° Min: 21° Mar Max: 38° Average: 30° Min: 22° Apr Max: 39° Average: 30° Min: 23° May Max: 38° Average: 30° Min: 25° Jun Max: 35° Average: 29° Min: 25° Jul Max: 31° Average: 27° Min: 25° Aug Max: 30° Average: 27° Min: 24° Sep Max: 31° Average: 27° Min: 24° Oct Max: 33° Average: 28° Min: 24° Nov Max: 34° Average: 28° Min: 22° Dec Max: 34° Average: 26° Min: 19°
Max
Average
Min

Bissorã sees moderate temperature variation throughout the year, ranging from 19°C to 39°C. April is the hottest month, with daytime highs reaching 39°C and an average of 30°C. January is the coolest month, with minimum temperatures around 19°C and an average of 26°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs. The sharpest temperature change occurs between June and July, with a 2°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm 350mm 400mm 450mm 500mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 0mm Feb Precipitation: 0mm Mar Precipitation: 0mm Apr Precipitation: 0mm May Precipitation: 5mm Jun Precipitation: 63mm Jul Precipitation: 366mm Aug Precipitation: 466mm Sep Precipitation: 351mm Oct Precipitation: 126mm Nov Precipitation: 13mm Dec Precipitation: 0mm
Precipitation

Bissorã is a fairly wet location, receiving approximately 1388mm of precipitation annually, which averages out to around 116mm per month. The wettest month is August, averaging 466mm of rainfall. July and September also tend to see above-average precipitation. The driest month is January, with just 0mm. That's 466mm less than August, 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: 14km/h Apr Wind Speed: 15km/h May Wind Speed: 15km/h Jun Wind Speed: 15km/h Jul Wind Speed: 13km/h Aug Wind Speed: 13km/h Sep Wind Speed: 11km/h Oct Wind Speed: 10km/h Nov Wind Speed: 10km/h Dec Wind Speed: 12km/h
Wind Speed

Bissorã is mildly breezy, with an average annual wind speed of 13km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is May, averaging 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 10km/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.

Seasons

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

90 days until Summer

It is currently spring in Bissorã, which began on March 20, 2026. Bissorã is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in April at around 39°C, while the coldest stretch bottoms out in January near 19°C. Summer is next, beginning on June 21, 2026 — 90 days from now.

Spring

Temperatures range from 22 to 39°C. Precipitation is minimal, with only around 5mm for the entire season. Winds are generally light, averaging 15km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 24 to 35°C. Rainfall is heavy, totalling around 894mm across the season with a monthly average of 298mm. Winds are generally light, averaging 14km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 22 to 34°C. Rainfall is heavy, totalling around 489mm across the season with a monthly average of 163mm. Winds are generally light, averaging 10km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 19 to 37°C. Precipitation is minimal, with only around 0mm for the entire season. 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 Bissorã 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
19 °C
35 °C
13 km/h
0 mm
0 cm
Feb
21 °C
37 °C
14 km/h
0 mm
0 cm
Mar Current
22 °C
38 °C
14 km/h
0 mm
0 cm
Apr
23 °C
39 °C
15 km/h
0 mm
0 cm
May
25 °C
38 °C
15 km/h
5 mm
0 cm
Jun
25 °C
35 °C
15 km/h
63 mm
0 cm
Jul
25 °C
31 °C
13 km/h
366 mm
0 cm
Aug
24 °C
30 °C
13 km/h
466 mm
0 cm
Sep
24 °C
31 °C
11 km/h
351 mm
0 cm
Oct
24 °C
33 °C
10 km/h
126 mm
0 cm
Nov
22 °C
34 °C
10 km/h
13 mm
0 cm
Dec
19 °C
34 °C
12 km/h
0 mm
0 cm
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Metric (°C, km/h)