Climate and monthly weather forecast
Wilberforce, Sierra Leone

Climate and monthly weather forecast

The climate of Wilberforce

Wilberforce falls under the climatic domain classified as Am by Köppen, more popularly known as the tropical monsoon climate. Geographically positioned in Sierra Leone, the town experiences a significant disparity between the wet and dry seasons. Weather conditions oscillate between hot, humid periods and heavy rainfall spanning a considerable portion of the year.

Throughout the year, the temperature ranges between a high of 31.4°C (88.5°F) occurring in January and a relatively cooler low of 23.9°C (75°F) in August. The humidity is consistently high, reaching a peak of 86% in the months of August and September and a minimum of 68% in January. Rainy days in Wilberforce extend from March to November, principally in July and August receiving up to 389mm (15.31") and 391mm (15.39") of rainfall respectively. December to February are the driest months with an average rainfall of merely 1mm (0.04") to 2mm (0.08").

The sun in Wilberforce shines for an average of 5.5 hours in July to a high of 9.8 hours in January. The wind speed varies from a low of 6.8km/h (4.2mph) in November to a high of 12km/h (7.5mph) in August with gusts reaching 18.4km/h (11.4mph).

The best time to visit Wilberforce

The ideal time to enjoy a trip to Wilberforce is in December and January. In these months, rain is at its minimum and with relative humidity dropping to a low of 68% coupled with abundant sunshine extending nearly 10 hours, the weather is most inviting. The pleasing temperature during these months with a high of 31.3°C (88.3°F) to 31.4°C (88.5°F) and low of 24.1°C (75.4°F) to 24.2°C (75.6°F) assures a comfortable environment.

The worst time to visit Wilberforce

A trip to Wilberforce is least favorable in the monsoon months of July and August. The rainfall hits its maxima, climbing from 387mm (15.24") to 391mm (15.39"). Concurrently, the humidity also peaks at 86% during these months, resulting in an incredibly moist atmosphere. Hence, outdoor activities may be hindered.

Spring weather in Wilberforce

Wilberforce does not experience a typical spring season due to its location near the equator. Nonetheless, the period from March to May sees a rise in rainfall, shifting from 6mm (0.24") to 66mm (2.6"), along with humidity elevating from 73% to 78%. Temperatures stay relatively steady, with highs ranging from 31°C (87.8°F) to 30.8°C (87.4°F) and lows varying from 24.6°C (76.3°F) to 26.2°C (79.2°F).

Summer weather in Wilberforce

The "summer" months in Wilberforce, primarily June to August, coincide with the peak of the monsoon season. The quantity of rainfall swells considerably during these months, reaching up to 391mm (15.39") in August along with relative humidity soaring to a maxima of 86%. Temperature peaks fall to around 28°C (82.4°F).

Autumn weather in Wilberforce

No distinct autumn season exists in Wilberforce due to its tropical climate. However, from September to November, rainfall reduces from 220mm (8.66") to 59mm (2.32") and relative humidity decreases from 85% to 80%. Temperatures remain consistent, but the increase of wind speed from 9.5km/h (5.9mph) to 6.8km/h (4.2mph) provides a crispness in the air.

Winter weather in Wilberforce

December to February marks the "winter" season in Wilberforce, characterized by relatively lower temperatures and reduced precipitation. During these months, rainfall tapers down to a low of 1mm (0.04") to 2mm (0.08"), and the temperatures fluctuate between a high of 31.4°C (88.5°F) to 30.7°C (87.3°F) and a low of 24.1°C (75.4°F) to 25.3°C (77.5°F).

Weather in January

January marks the commencement of a new year and brings mild weather conditions to Wilberforce, Sierra Leone. The climate slightly differs from the temperatures of the full-blown heat in December, with highs of 31.4°C (88.5°F) and lows of 24.1°C (75.4°F). Weather in January »

Weather in February

The climate of February closely resembles that of January. It's a breather for locals and tourists alike following high December temperatures. The climate characteristics in February involve the continuation of the trend from January, despite a slight increase in relative humidity and lower wind speeds. Weather in February »

Weather in March

March in Wilberforce, Sierra Leone, witnesses a mild transition in weather. Relative humidity and rainfall begin to climb from the lower levels of the preceding months. The rise in rainfall contributes to the modest increase in humidity, while wind speeds slightly rise from those record in February, marking a wind speed of 11.6km/h (7.2mph). Weather in March »

Weather in April

The peak of the dry season in Wilberforce, Sierra Leone, is at hand by April. A marked increase in rainfall to 18mm (0.71") and a significant rise in relative humidity are the distinctive features of this month. The increase in precipitation contrasts significantly with the low levels of rainfall observed from January to March. Weather in April »

Weather in May

May marks a substantial shift in the weather pattern in Wilberforce, Sierra Leone, as the wet season commences, with rainfall increasing dramatically to measurements averaging 66mm (2.6"). This heavy precipitation jump results in soaring relative humidity levels. Weather in May »

Weather in June

June in Wilberforce experiences a further intensification of the wet season. Pronounced changes across most climatological parameters transpire, specifically, average rainfall increases to an all-time high of 199mm (7.83"). Amid this weather, temperatures moderately decline, while persistent rains contribute to further enhancing relative humidity. Weather in June »

Weather in July

July in Wilberforce, Sierra Leone, presents weather conditions at their most extreme. The town experiences it's highest ever recorded rainfall of 387mm (15.24") this month. July's climate further entails an increase in relative humidity and cloud coverage, while wind speeds slightly climb as well. Weather in July »

Weather in August

The extreme wet pattern pervades in August in Wilberforce. Just as in July, rainfall keeps up at its peak, reaching 391mm (15.39"), the maximum for any month. The wind also blows at its highest velocity this month, recording speeds of 12km/h (7.5mph). Weather in August »

Weather in September

September witnesses a gradual weather transition in Wilberforce. The rainfall starts to sharply decline from the peaks of the previous months, culminating in 220mm (8.66"). A corresponding downward trend in humidity and wind speeds is also observed. Weather in September »

Weather in October

The month of October indicates a clearer shift towards the dry season in Wilberforce, Sierra Leone. The decrease in rainfall further continues from the previous month, dropping to 151mm (5.94"). This decline in rain subsequently brings about a drop in humidity levels. Weather in October »

Weather in November

As November approaches in Wilberforce, Sierra Leone, there's a more noticeable transition from the rainy to the dry season. With reduced rainfall of 59mm (2.32") and lowered humidity levels, conditions begin to resemble those of the early dry months. Weather in November »

Weather in December

December concludes the year in Wilberforce with the full onset of the dry season. Weather conditions revert to the mild state synonymous with the beginning of the year, with temperatures peaking at 31°C (87.8°F). Rainfall significantly decreases to 7mm (0.28"), plummeting from the high figures of the wet season. Weather in December »

Frequently asked questions

What month is the hottest in Wilberforce?
Wilberforce, Sierra Leone, reaches its average highest temperatures in January, measuring 31.4°C (88.5°F) at the peak and 24.1°C (75.4°F) at the lowest.
What is the least humid month in Wilberforce?
The least humid month in Wilberforce is January, with an average relative humidity of 68%.
How much does it rain in Wilberforce?
In Wilberforce, Sierra Leone, during the entire year, the rain falls for 205.9 days and collects up to 1507mm (59.33") of precipitation.
When is the highest UV index in Wilberforce?
January through June, September through December, with an average maximum UV index of 7, are months with the highest UV index.
What is the driest month in Wilberforce?
The month with the least rainfall in Wilberforce, Sierra Leone, is February, when the rain falls for 0.8 days and typically collects 1mm (0.04") of precipitation.
What month has the most sunshine in Wilberforce?
With an average of 9.9h of sunshine, February has the most sunshine of the year in Wilberforce, Sierra Leone.
When are the longest days in Wilberforce?
The month with the longest days in Wilberforce, Sierra Leone, is June, with an average of 12h and 36min of daylight.
What is the month with the lowest UV index in Wilberforce?
July and August, with an average maximum UV index of 6, are months with the lowest UV index in Wilberforce, Sierra Leone.
What is the coldest time of year in Wilberforce?
Wilberforce, Sierra Leone, notes the coldest temperatures in August, with a average high of 27.3°C (81.1°F) and a low of 23.9°C (75°F).
What is the most humid month in Wilberforce?
With an average relative humidity of 86%, August is the most humid month.
What is the wettest month in Wilberforce?
August is the month with the most rainfall in Wilberforce, Sierra Leone. Rain falls for 30.2 days and accumulates 391mm (15.39") of precipitation.
What is the month with the least sunshine in Wilberforce?
August has the least sunshine of the year in Wilberforce, with an average of 4.8h of sunshine.
What is the month with the shortest days in Wilberforce?
December has the shortest days of the year in Wilberforce, Sierra Leone, with an average of 11h and 36min of daylight.
Is there Daylight Saving Time (DST) in Wilberforce?
Wilberforce does not utilize Daylight Saving Time (DST). GMT timezone is used throughout the entire year.
Average temperature - Wilberforce, Sierra Leone
Average temperature
Wilberforce, Sierra Leone

The warmest month (with the highest average high temperature) is January (31.4°C).
The month with the lowest average high temperature is August (27.3°C).

The month with the highest average low temperature is May (26.2°C).
The coldest month (with the lowest average low temperature) is August (23.9°C).

Average pressure - Wilberforce, Sierra Leone
Average pressure
Wilberforce, Sierra Leone

The month with the highest atmospheric pressure is July (1013.8mbar).
The months with the lowest atmospheric pressure are February and March (1010.4mbar).

Average wind speed - Wilberforce, Sierra Leone
Average wind speed
Wilberforce, Sierra Leone

The windiest month (with the highest average wind speed) is August (12km/h).
The calmest month (with the lowest average wind speed) is November (6.8km/h).

Average humidity - Wilberforce, Sierra Leone
Average humidity
Wilberforce, Sierra Leone

The month with the highest relative humidity is August (86%).
The month with the lowest relative humidity is January (68%).

Average rainfall - Wilberforce, Sierra Leone
Average rainfall
Wilberforce, Sierra Leone

The wettest month (with the highest rainfall) is August (391mm).
The driest month (with the least rainfall) is February (1mm).

Average rainfall days - Wilberforce, Sierra Leone
Average rainfall days
Wilberforce, Sierra Leone

The month with the highest number of rainy days is July (30.3 days).
The month with the least rainy days is February (0.8 days).

Average daylight / Average sunshine - Wilberforce, Sierra Leone
Average daylight / Average sunshine
Wilberforce, Sierra Leone

The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 36min).

The month with the most sunshine is February (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 4h and 48min).

Average sunshine days - Wilberforce, Sierra Leone
Average sunshine days
Wilberforce, Sierra Leone

The month with the most sunshine days is January (29 days).
The month with the least sunshine days is August (0.5 days).

Average UV index - Wilberforce, Sierra Leone
Average UV index
Wilberforce, Sierra Leone

The months with the highest UV index are January, February, March, April, May, June, September, October, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 6).

Average visibility - Wilberforce, Sierra Leone
Average visibility
Wilberforce, Sierra Leone

The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).

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