Climate and monthly weather forecast
Freetown, Sierra Leone

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The hilly seaside city of Freetown in Sierra Leone
The hilly seaside city of Freetown in Sierra Leone

The climate of Freetown

Situated along the Atlantic coastline, Freetown is Sierra Leone's largest city and capital. Characterized by Köppen's Am, a tropical monsoon climate, Freetown experiences a hot and humid climate year-round.

Throughout the year, Freetown faces temperatures oscillating between a monthly average high of 31.4°C (88.5°F) and a low of 23.9°C (75°F). The heat is especially pronounced during the months of March and February, with highs of 31.4°C (88.5°F) and 31.3°C (88.3°F), respectively. The recorded low temperatures mostly occur in the last quarter of the year, with the lowest in August, registering 23.9°C (75°F).

Humidity levels are rather high. January sees the least humidity at 68%, while the highest is observed in August at an impressive 86%. Rainfall distribution is uneven across the year, reaching an imposing monthly average of 391mm (15.39") in July and August while being as low as 1mm (0.04") in February.

Daylight hours are fairly consistent, with a lowest average of 11.6 hours in December and the highest average of 12.6 hours during June and July.

The best time to visit Freetown

The ideal time for a visit to Freetown largely depends on specific weather preferences. For those seeking higher temperatures and sunnier days, the months between January and April prove most suitable. During this period, the city gets up to 9.9 hours of sunshine a day with temperatures reaching their peak and rainfall at its minimal.

The worst time to visit Freetown

Travelers looking to avoid heavy rainfall should steer clear of the period from June to September wherein Freetown experiences its monsoon season. August records the highest rainfall at 391mm (15.39") accompanied by a humidity level that hovers around 86%.

Spring weather in Freetown

In Freetown, the spring months, considered locally from March to May, showcase temperatures ranging from 31°C (87.8°F) to 30.7°C (87.3°F) in the afternoons and 24.6°C (76.3°F) to 26.2°C (79.2°F) during the evenings. April, in particular, starts experiencing sizable increments in rainfall, from 6mm (0.24") in March up to 66mm (2.6").

Summer weather in Freetown

Summers in Freetown are marked by monsoon rains, high humidity, and relatively lower temperatures. From June to August, afternoons see temperatures from 29.3°C (84.7°F) down to 27.3°C (81.1°F) while evenings range from 25.3°C (77.5°F) to 23.9°C (75°F). Coinciding with these months is also the city's peak rainfall period, as rainfall surges from 199mm (7.83") in June to a significant 391mm (15.39") in both July and August.

Autumn weather in Freetown

Despite it being autumn in Freetown from September to November, temperatures remain quite elevated ranging from 28.1°C (82.6°F) to 30.1°C (86.2°F) in the afternoons and 24.4°C (75.9°F) to 25.3°C (77.5°F) at night. The rainfall during this period remains high, from 220mm (8.66") in September, reducing somewhat to 151mm (5.94") in October, and falling dramatically to 59mm (2.32") by November.

Winter weather in Freetown

In Freetown, winter, as locally determined, lasts from December to February. During these months, the city experiences slightly lower temperatures that fluctuate from 31°C (87.8°F) to 31.4°C (88.5°F) in the day and from 24.5°C (76.1°F) to 24.1°C (75.4°F) in the evening. As we move from December to February, rainfall significantly decreases from 7mm (0.28") to 1mm (0.04"), presenting an opportune time to explore the city.

Weather in January

Freetown, Sierra Leone starts its year with moderate weather conditions; temperatures fluctuating moderately from day to night. This month has a surprisingly low relative humidity and rainfall, together with the immense sunlight hours of about 9.8 hours per day, indicating a predominantly clear sky. Weather in January »

Weather in February

Following January, February exhibits a minor shift in the weather patterns of Freetown. The city experiences a slight increase in humidity, indicating a marginal increment in atmospheric moisture. Accompanied by a drop in rainfall and a slightly higher sea temperature, this month solidifies the dry phase of Freetown. Weather in February »

Weather in March

March, in Freetown, marks a turn towards a more humid and rainy phase. Gradual transitions can be witnessed in the temperature and atmospheric pressure compared to February. Additionally, this month presents a somewhat noticeable increase in rainfall, while the sea temperature drops slightly, bringing a cooler, more refreshing seaside environment. Weather in March »

Weather in April

Transiting to April, the weather in Freetown becomes noticeably warmer and more humid than the preceding months. The city welcomes an even greater amount of rainfall, marking the start of the Rainy season. Despite an increase in cloud cover, daylight hours remain generous, promising bright days. Weather in April »

Weather in May

As Freetown steps into May, the city's weather takes on a thoroughly wet character. Temperatures cool slightly, but high humidity could make it feel more intense. There is also a significant jump in rainfall, turning the city distinctly rainier. Weather in May »

Weather in June

By June, Freetown's weather reaches its rainiest phase. Compared to May, temperatures continue to plunge, and the humidity scales up, giving the air a heavy feel. The rainfall hits its peak this month, and the sea also turns choppier due to increased wind speeds. Weather in June »

Weather in July

July continues to follow the existing rainy weather trend in Freetown. However, there is a noticeable dip in temperature, and humidity peaks, making the weather exceptionally damp. As rainfall continues to saturate the city, rivers continue to swell. Weather in July »

Weather in August

August in Freetown does not hold back on the rain but offers a slight respite as rainfall reduces marginally and temperature levels stabilize. The dampness of previous months lingers, affecting the quality of outdoor experiences. Weather in August »

Weather in September

September signals a change in the persistent rainy weather of Freetown as there is a significant drop in rainfall. Although temperatures rise slightly, the intense humidity makes the warmth feel more oppressive. The sea remains cool, offering a refreshing diversion from the muggy weather. Weather in September »

Weather in October

October brings about Freetown's transition from the wet to the dry season. The weather becomes tolerably hot, but high humidity levels persist. Rainfall lessens dramatically, and there is an appreciable rise in the sunlight hours. Weather in October »

Weather in November

November sets Freetown's weather on a drier and sunnier course. The temperatures rise further, but comfortable wind speeds and lower humidity levels balance that out. The sea temperature remains steady, providing an enjoyable maritime environment. Weather in November »

Weather in December

December completes the weather cycle of Freetown by maintaining a relatively warm and dry atmosphere. There are fewer hours of daylight, but the amount of sunlight remains high, ensuring adequate brightness throughout the day. Weather in December »
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Frequently asked questions

What month is the hottest in Freetown?

The warmest period in Freetown, Sierra Leone, tends to be January, when average temperatures fluctuate between a high of 31.4°C (88.5°F) and a low of 24.1°C (75.4°F).

What is the least humid month in Freetown?

With an average relative humidity of 68%, January is the least humid month in Freetown, Sierra Leone.

How many days does it rain in Freetown?

Throughout the year, there are 205.9 rainfall days, and 1507mm (59.33") of precipitation is accumulated.

When is the highest UV index in Freetown?

The months with the highest UV index in Freetown, Sierra Leone, are January through June, September through December, with an average maximum UV index of 7.

What is the driest month in Freetown?

The month with the least rainfall 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 Freetown?

February has the most sunshine of the year, with an average of 9.9h of sunshine.

When are the longest days in Freetown?

June has the longest days of the year in Freetown, Sierra Leone, with an average of 12h and 36min of daylight.

What are the months with the lowest UV index in Freetown?

The months with the lowest UV index are July and August, with an average maximum UV index of 6.

What time of the year is the coldest in Freetown?

August is Freetown's coldest month, registering average high temperatures of 27.3°C (81.1°F) and lows of 23.9°C (75°F).

What is the most humid month in Freetown?

August is the most humid month in Freetown, with an average relative humidity of 86%.

What is the rainiest month in Freetown?

August is the month with the most rainfall. Rain falls for 30.2 days and accumulates 391mm (15.39") of precipitation.

When is the sea coldest in Freetown?

August is the month with the coldest seawater, with an average sea temperature of 27.3°C (81.1°F).

What is the month with the least sunshine in Freetown?

With an average of 4.8h of sunshine, August has the least sunshine of the year in Freetown, Sierra Leone.

What months are the sea warmest in Freetown?

The months with the warmest seawater are November and December, with an average sea temperature of 28.8°C (83.8°F).

What is the month with the shortest days in Freetown?

December has the shortest days of the year in Freetown, with an average of 11h and 36min of daylight.

Is there Daylight Saving Time (DST) in Freetown?

Freetown does not utilize Daylight Saving Time (DST). GMT timezone is used over the entire year.

Average temperature
Freetown, Sierra Leone

Average temperature - Freetown, 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).

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Average pressure
Freetown, Sierra Leone

Average pressure - Freetown, 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).

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Average wind speed
Freetown, Sierra Leone

Average wind speed - Freetown, 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).

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Average humidity
Freetown, Sierra Leone

Average humidity - Freetown, Sierra Leone

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

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Average rainfall
Freetown, Sierra Leone

Average rainfall - Freetown, Sierra Leone

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

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Average rainfall days
Freetown, Sierra Leone

Average rainfall days - Freetown, 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).

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Average sea temperature
Freetown, Sierra Leone

Average sea temperature - Freetown, Sierra Leone

The best months for swimming (with the highest average sea temperature) are November and December (28.8°C).
The coldest month (with the lowest average sea temperature) is August (27.3°C).

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Average daylight / Average sunshine
Freetown, Sierra Leone

Average daylight / Average sunshine - Freetown, 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).

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Average sunshine days
Freetown, Sierra Leone

Average sunshine days - Freetown, 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).

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Average UV index
Freetown, Sierra Leone

Average UV index - Freetown, 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).

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Average visibility
Freetown, Sierra Leone

Average visibility - Freetown, 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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Freetown, Sierra Leone

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