Climate Insights for Koyima

, Eastern Province, Sierra Leone

Hottest
February
35°C peak
Coldest
December
20°C low
Wettest
September
474mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Koyima is hot. The average annual temperature is 26°C and approximately 2402mm of precipitation falls per year. September is the wettest month, receiving around 474mm of rainfall. Koyima 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: 20° Feb Max: 35° Average: 28° Min: 22° Mar Max: 35° Average: 29° Min: 23° Apr Max: 33° Average: 27° Min: 23° May Max: 31° Average: 26° 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: 29° Average: 25° Min: 22° Nov Max: 30° Average: 25° Min: 21° Dec Max: 31° Average: 25° Min: 20°
Max
Average
Min

Koyima sees moderate temperature variation throughout the year, ranging from 20°C to 35°C. February is the hottest month, with daytime highs reaching 35°C and an average of 28°C. December is the coolest month, with minimum temperatures around 20°C and an average of 25°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: 5mm Feb Precipitation: 11mm Mar Precipitation: 46mm Apr Precipitation: 87mm May Precipitation: 197mm Jun Precipitation: 310mm Jul Precipitation: 398mm Aug Precipitation: 426mm Sep Precipitation: 474mm Oct Precipitation: 307mm Nov Precipitation: 131mm Dec Precipitation: 10mm
Precipitation

Koyima is a very wet location, receiving approximately 2402mm of precipitation annually, which averages out to around 200mm per month. The wettest month is September, averaging 474mm of rainfall. August and July also tend to see above-average precipitation. The driest month is January, with just 5mm. That's 469mm 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: 10km/h Feb Wind Speed: 11km/h Mar Wind Speed: 13km/h Apr Wind Speed: 11km/h May Wind Speed: 10km/h Jun Wind Speed: 10km/h Jul Wind Speed: 11km/h Aug Wind Speed: 11km/h Sep Wind Speed: 10km/h Oct Wind Speed: 8km/h Nov Wind Speed: 7km/h Dec Wind Speed: 8km/h
Wind Speed

Koyima 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 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, 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 6km/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 Koyima, which began on March 20, 2026. Koyima 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 December near 20°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from 23 to 35°C. Rainfall is heavy, totalling around 330mm across the season with a monthly average of 110mm. Winds are generally light, averaging 11km/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 1135mm across the season with a monthly average of 378mm. Winds are generally light, averaging 11km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 21 to 30°C. Rainfall is heavy, totalling around 911mm across the season with a monthly average of 304mm. Winds are generally light, averaging 8km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 20 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.

Monthly Climate Data

The table below shows monthly climate averages for Koyima 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
33 °C
10 km/h
5 mm
0 cm
Feb
22 °C
35 °C
11 km/h
11 mm
0 cm
Mar Current
23 °C
35 °C
13 km/h
46 mm
0 cm
Apr
23 °C
33 °C
11 km/h
87 mm
0 cm
May
23 °C
31 °C
10 km/h
197 mm
0 cm
Jun
22 °C
29 °C
10 km/h
310 mm
0 cm
Jul
22 °C
27 °C
11 km/h
398 mm
0 cm
Aug
22 °C
27 °C
11 km/h
426 mm
0 cm
Sep
22 °C
28 °C
10 km/h
474 mm
0 cm
Oct
22 °C
29 °C
8 km/h
307 mm
0 cm
Nov
21 °C
30 °C
7 km/h
131 mm
0 cm
Dec
20 °C
31 °C
8 km/h
10 mm
0 cm
Airpult

Get accurate weather forecasts worldwide with real-time updates and severe weather alerts. Covering 6M+ locations with precise, reliable weather data.

© 2026 Samuenti GmbH. All rights reserved.

gb English
Metric (°C, km/h)