Climate Insights for Seidu

, Northern Province, Sierra Leone

Hottest
February
35°C peak
Coldest
January
19°C low
Wettest
September
458mm rain
Best to Visit
December
Mild temps & low rain

Climate Overview

The climate in Seidu is warm and mild. The average annual temperature is 25°C and approximately 2465mm of precipitation falls per year. September is the wettest month, receiving around 458mm of rainfall. Seidu 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: 33° Average: 26° Min: 19° Feb Max: 35° Average: 27° Min: 21° Mar Max: 34° Average: 28° Min: 23° Apr Max: 32° Average: 27° Min: 23° May Max: 30° Average: 25° Min: 22° Jun Max: 28° Average: 24° Min: 21° Jul Max: 27° Average: 23° Min: 21° Aug Max: 26° Average: 23° Min: 21° Sep Max: 28° Average: 23° Min: 21° Oct Max: 29° Average: 24° Min: 21° Nov Max: 30° Average: 24° Min: 20° Dec Max: 32° Average: 25° Min: 19°
Max
Average
Min

Seidu sees moderate temperature variation throughout the year, ranging from 19°C to 35°C. The warmest month is February, when average highs reach 35°C and the mean temperature sits around 27°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 9°C between overnight lows and afternoon highs.

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: 6mm Feb Precipitation: 13mm Mar Precipitation: 61mm Apr Precipitation: 113mm May Precipitation: 248mm Jun Precipitation: 314mm Jul Precipitation: 390mm Aug Precipitation: 424mm Sep Precipitation: 458mm Oct Precipitation: 324mm Nov Precipitation: 108mm Dec Precipitation: 7mm
Precipitation

Seidu is a very wet location, receiving approximately 2465mm of precipitation annually, which averages out to around 205mm per month. The wettest month is September, averaging 458mm of rainfall. August and July also tend to see above-average precipitation. The driest month is January, with just 6mm. That's 452mm 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 15km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 9km/h Feb Wind Speed: 11km/h Mar Wind Speed: 12km/h Apr Wind Speed: 11km/h May Wind Speed: 9km/h Jun Wind Speed: 9km/h Jul Wind Speed: 10km/h Aug Wind Speed: 11km/h Sep Wind Speed: 9km/h Oct Wind Speed: 7km/h Nov Wind Speed: 7km/h Dec Wind Speed: 9km/h
Wind Speed

Seidu is relatively calm, with an average annual wind speed of 10km/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 12km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 7km/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

89 days until Summer

It is currently spring in Seidu, which began on March 20, 2026. Seidu 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 35°C, while the coldest stretch bottoms out in January near 19°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from 22 to 34°C. Rainfall is heavy, totalling around 422mm across the season with a monthly average of 141mm. Winds are generally light, averaging 11km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 21 to 28°C. Rainfall is heavy, totalling around 1127mm across the season with a monthly average of 376mm. Winds are generally light, averaging 10km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 20 to 30°C. Rainfall is heavy, totalling around 890mm across the season with a monthly average of 297mm. Winds are generally light, averaging 8km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 19 to 35°C. Precipitation is minimal, with only around 26mm for the entire season. Winds are generally light, averaging 10km/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 28°
Apr 27°
May 25°
Jun 24°
Jul 23°
Aug 23°
Sep 23°
Oct 24°
Nov 24°
Dec 25°

The best time to visit Seidu is during December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 25°C with modest rainfall averaging 7mm per month. By contrast, February can be uncomfortably hot with highs reaching 35°C, while January is the coldest period with lows dropping to 19°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

Monthly Climate Data

The table below shows monthly climate averages for Seidu 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
33 °C
9 km/h
6 mm
0 cm
Feb
21 °C
35 °C
11 km/h
13 mm
0 cm
Mar Current
23 °C
34 °C
12 km/h
61 mm
0 cm
Apr
23 °C
32 °C
11 km/h
113 mm
0 cm
May
22 °C
30 °C
9 km/h
248 mm
0 cm
Jun
21 °C
28 °C
9 km/h
314 mm
0 cm
Jul
21 °C
27 °C
10 km/h
390 mm
0 cm
Aug
21 °C
26 °C
11 km/h
424 mm
0 cm
Sep
21 °C
28 °C
9 km/h
458 mm
0 cm
Oct
21 °C
29 °C
7 km/h
324 mm
0 cm
Nov
20 °C
30 °C
7 km/h
108 mm
0 cm
Dec
19 °C
32 °C
9 km/h
7 mm
0 cm
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Metric (°C, km/h)