Climate Insights for Bumbuna

Northern Province, Sierra Leone

Hottest
February
36°C peak
Coldest
January
20°C low
Wettest
September
557mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Bumbuna is hot. The average annual temperature is 26°C and approximately 2778mm of precipitation falls per year. September is the wettest month, receiving around 557mm of rainfall. Bumbuna sits near the equator, so seasonal temperature differences are minimal throughout the year.

Temperature

0° 10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 34° Average: 27° Min: 20° Feb Max: 36° Average: 28° Min: 21° Mar Max: 36° Average: 29° Min: 23° Apr Max: 34° Average: 28° Min: 24° May Max: 31° Average: 27° Min: 23° Jun Max: 29° Average: 25° Min: 22° Jul Max: 27° Average: 24° Min: 22° Aug Max: 27° Average: 24° Min: 22° Sep Max: 28° Average: 24° Min: 22° Oct Max: 30° Average: 25° Min: 22° Nov Max: 30° Average: 25° Min: 22° Dec Max: 32° Average: 26° Min: 20°
Max
Average
Min

Bumbuna sees moderate temperature variation throughout the year, ranging from 20°C to 36°C. February is the hottest month, with daytime highs reaching 36°C and an average of 28°C. January is the coolest month, with minimum temperatures around 20°C and an average of 27°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm 350mm 400mm 450mm 500mm 550mm 600mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 2mm Feb Precipitation: 7mm Mar Precipitation: 30mm Apr Precipitation: 70mm May Precipitation: 187mm Jun Precipitation: 322mm Jul Precipitation: 508mm Aug Precipitation: 551mm Sep Precipitation: 557mm Oct Precipitation: 393mm Nov Precipitation: 138mm Dec Precipitation: 12mm
Precipitation

Bumbuna is a very wet location, receiving approximately 2778mm of precipitation annually, which averages out to around 231mm per month. The wettest month is September, averaging 557mm of rainfall. August and July also tend to see above-average precipitation. The driest month is January, with just 2mm. That's 555mm less than September, 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 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 5km/h Feb Wind Speed: 6km/h Mar Wind Speed: 7km/h Apr Wind Speed: 6km/h May Wind Speed: 6km/h Jun Wind Speed: 6km/h Jul Wind Speed: 6km/h Aug Wind Speed: 7km/h Sep Wind Speed: 5km/h Oct Wind Speed: 4km/h Nov Wind Speed: 4km/h Dec Wind Speed: 4km/h
Wind Speed

Bumbuna is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months.

Seasons

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

87 days until Winter

It is currently autumn in Bumbuna, which began on September 23, 2026. Bumbuna sits near the equator, so the traditional four-season cycle is less pronounced. Temperatures remain relatively stable year-round. The warmest period peaks in February at around 36°C, while the coldest stretch bottoms out in January near 20°C. Winter is next, beginning on December 21, 2026 (87 days from now).

Spring

Temperatures range from 23 to 36°C. Precipitation is moderate at around 287mm for the season, averaging 96mm per month. Winds are generally light, averaging 6km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 22 to 29°C. Rainfall is heavy, totalling around 1382mm across the season with a monthly average of 461mm. Winds are generally light, averaging 6km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.

Autumn

Temperatures range from 22 to 30°C. Rainfall is heavy, totalling around 1088mm across the season with a monthly average of 363mm. Winds are generally light, averaging 4km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 20 to 36°C. Precipitation is minimal, with only around 21mm for the entire season. Winds are generally light, averaging 5km/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 Bumbuna 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
20 °C
34 °C
5 km/h
2 mm
0 cm
Feb
21 °C
36 °C
6 km/h
7 mm
0 cm
Mar
23 °C
36 °C
7 km/h
30 mm
0 cm
Apr
24 °C
34 °C
6 km/h
70 mm
0 cm
May
23 °C
31 °C
6 km/h
187 mm
0 cm
Jun
22 °C
29 °C
6 km/h
322 mm
0 cm
Jul
22 °C
27 °C
6 km/h
508 mm
0 cm
Aug
22 °C
27 °C
7 km/h
551 mm
0 cm
Sep Current
22 °C
28 °C
5 km/h
557 mm
0 cm
Oct
22 °C
30 °C
4 km/h
393 mm
0 cm
Nov
22 °C
30 °C
4 km/h
138 mm
0 cm
Dec
20 °C
32 °C
4 km/h
12 mm
0 cm
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Metric (°C, km/h)