Climate Insights for Yonibana

, Northern Province, Sierra Leone

Hottest
March
36°C peak
Coldest
December
22°C low
Wettest
August
631mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Yonibana is hot. The average annual temperature is 27°C and approximately 2651mm of precipitation falls per year. August is the wettest month, receiving around 631mm of rainfall. Yonibana 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: 35° Average: 28° Min: 23° Feb Max: 36° Average: 29° Min: 24° Mar Max: 36° Average: 29° Min: 24° Apr Max: 34° Average: 29° Min: 25° May Max: 32° Average: 27° Min: 24° Jun Max: 30° Average: 26° Min: 23° Jul Max: 28° Average: 25° Min: 23° Aug Max: 28° Average: 25° Min: 23° Sep Max: 29° Average: 25° Min: 23° Oct Max: 30° Average: 26° Min: 23° Nov Max: 31° Average: 26° Min: 23° Dec Max: 33° Average: 27° Min: 22°
Max
Average
Min

Yonibana sees moderate temperature variation throughout the year, ranging from 22°C to 36°C. March is the hottest month, with daytime highs reaching 36°C and an average of 29°C. December is the coolest month, with minimum temperatures around 22°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 650mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 4mm Feb Precipitation: 12mm Mar Precipitation: 23mm Apr Precipitation: 69mm May Precipitation: 187mm Jun Precipitation: 338mm Jul Precipitation: 512mm Aug Precipitation: 631mm Sep Precipitation: 532mm Oct Precipitation: 238mm Nov Precipitation: 92mm Dec Precipitation: 13mm
Precipitation

Yonibana is a very wet location, receiving approximately 2651mm of precipitation annually, which averages out to around 221mm per month. The wettest month is August, averaging 631mm of rainfall. September and July also tend to see above-average precipitation. The driest month is January, with just 4mm. That's 627mm 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: 12km/h May Wind Speed: 11km/h Jun Wind Speed: 10km/h Jul Wind Speed: 10km/h Aug Wind Speed: 11km/h Sep Wind Speed: 10km/h Oct Wind Speed: 9km/h Nov Wind Speed: 8km/h Dec Wind Speed: 10km/h
Wind Speed

Yonibana is relatively calm, with an average annual wind speed of 11km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 8km/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. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 13km/h in winter, 12km/h in spring, 11km/h in summer, 9km/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 Yonibana, which began on March 20, 2026. Yonibana 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 36°C, while the coldest stretch bottoms out in December near 22°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from 24 to 36°C. Precipitation is moderate at around 279mm for the season, averaging 93mm per month. Winds are generally light, averaging 12km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 23 to 30°C. Rainfall is heavy, totalling around 1482mm across the season with a monthly average of 494mm. Winds are generally light, averaging 11km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 23 to 31°C. Rainfall is heavy, totalling around 862mm across the season with a monthly average of 287mm. Winds are generally light, averaging 9km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 22 to 36°C. Precipitation is minimal, with only around 28mm 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 Yonibana 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
23 °C
35 °C
13 km/h
4 mm
0 cm
Feb
24 °C
36 °C
14 km/h
12 mm
0 cm
Mar Current
24 °C
36 °C
14 km/h
23 mm
0 cm
Apr
25 °C
34 °C
12 km/h
69 mm
0 cm
May
24 °C
32 °C
11 km/h
187 mm
0 cm
Jun
23 °C
30 °C
10 km/h
338 mm
0 cm
Jul
23 °C
28 °C
10 km/h
512 mm
0 cm
Aug
23 °C
28 °C
11 km/h
631 mm
0 cm
Sep
23 °C
29 °C
10 km/h
532 mm
0 cm
Oct
23 °C
30 °C
9 km/h
238 mm
0 cm
Nov
23 °C
31 °C
8 km/h
92 mm
0 cm
Dec
22 °C
33 °C
10 km/h
13 mm
0 cm
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Metric (°C, km/h)