Climate and monthly weather forecastKasafoni, Sierra Leone
Climate and monthly weather forecast
The climate of Kasafoni
The climate in Kasafoni, Sierra Leone, falls into the Tropical monsoon category according to the Köppen climate classification. Geographically situated in the western region of the African continent, the locale experiences a tropical climate. Year-round hot temperatures with monthly highs ranging from 26.3°C (79.3°F) to 38°C (100.4°F) are common. The lowest temperatures vary from 17.3°C (63.1°F) to 22°C (71.6°F).Relative humidity follows a sine wave pattern, starting low at 38% in January and peaking at a high of 94% in August. Rainfall follows a similar pattern, being scarce at the beginning of the year with a mere 4mm (0.16") in January and February, then sharply increasing from March until reaching a peak of 227mm (8.94") in August. The number of rainy days follows suit, recording the highest at 30.3 days in August.
Sunshine hours are most plentiful in the drier months, with January and February boasting about 9.8 to 9.9 hours per day, dropping significantly in the rainier season with a minimum of 3.5 hours per day in August. UV index mostly stays within the moderate range of 5 to 7. The highest amount of cloud cover is observed from May to September.
The best time to visit Kasafoni
Considering the climatic conditions, the best time to visit Kasafoni would be between January and March when the weather is relatively less humid and the rainfall is minimal. During this period, visitors can expect high temperatures ranging from 34.5°C (94.1°F) to 38°C (100.4°F) and low temperatures varying between 17.8°C (64°F) and 21.8°C (71.2°F). The relative humidity stands low with values around 38% to 59%. With regard to rainfall, Kasafoni experiences its dry season during this period with precipitation amounts from 2mm (0.08") to 17mm (0.67") and rainfall days ranging from 1.9 to 8.5 days per month. Furthermore, the number of sunshine hours is favorable with daily averages falling within 9.7 to 9.9 hours.The worst time to visit Kasafoni
The least favorable period for a visit to Kasafoni would be the peak of the rainy season between June and October. During this time, both relative humidity and rainfall reach their highest annual values, with precipitation amounts soaring to staggering levels from 146mm (5.75") to 227mm (8.94"). The number of rainfall days jump significantly, hitting the peak at 30.3 days in August. Another factor adding to the uncomfortably high humidity is temperatures ranging from 27.1°C (80.8°F) to 29.7°C (85.5°F). Furthermore, this period also witnesses a drastic decrease in daily sunshine hours, which drops to a low of 3.5 hours in August.Spring weather in Kasafoni
In Kasafoni, the months of March, April, and May mark the spring season. Temperatures during these months are consistently high, ranging from 36.8°C (98.2°F) to 37°C (98.6°F) for the highs and 20.6°C (69.1°F) to 22°C (71.6°F) for the lows. Humidity starts to increase, moving from 52% to 77%. During this period, rainfall begins its upward trek peaking at 139mm (5.47") in May. Correspondingly, the number of rainfall days also increases, reaching 24.3 days in May.Summer weather in Kasafoni
The summer season in Kasafoni spans the months of June, July, and August. During these months, the temperatures experience a slight decrease, hovering between 27.1°C (80.8°F) to 29.7°C (85.5°F) for the high temperatures, and sustaining at around 20.5°C (68.9°F) to 21.5°C (70.7°F) for the low temperatures. However, humidity spikes significantly and tops the yearly charts between 88% and 94%. This period also experiences the highest rainfall volumes, touching a whopping 204mm (8.03") to 227mm (8.94"). Correspondingly, the number of rainfall days peaks at 30.3 days in August.Autumn weather in Kasafoni
September, October, and November are the autumn months in Kasafoni. Climatologically, the conditions reflect a slight decline from the summer extremes. The high temperatures range from 27.5°C (81.5°F) to 30.5°C (86.9°F), whereas the low temperatures fall within the span of 20.3°C (68.5°F) to 21.5°C (70.7°F). Relative humidity decreases from 93% in September to 80% in November, while the rainfall decreases from 206mm (8.11") to 51mm (2.01"). Correspondingly, the number of rainfall days also declines, going from 28.8 to 16.9 days.Winter weather in Kasafoni
December, January, and February mark the winter season in Kasafoni. The temperature fluctuates between 29.2°C (84.6°F) to 34.5°C (94.1°F) for the highs, and from 17.3°C (63.1°F) to 19.3°C (66.7°F) for the lows. Relative humidity during these months drops to the lowest of the year, dipping between 38% and 49%. Rainfall hits its annual lowest point at 4mm (0.16") in December and February with corresponding rainfall days dipping to 2.4 days. During this period, the sunshine hours are highest, registering 9.7 hours to 9.9 hours per day.Weather in January
January in Kasafoni, Sierra Leone heralds the start of the dry season, a significant shift from the humid conditions experienced in December. Pleasantly warm temperatures and widely sunny days dominate this month's weather. Remarkably, rainfall drops significantly to only 4mm (0.16") this month, a drastic reduction from the copious amounts recorded in the previous months. Weather in January »Weather in February
Moving into February, the weather pattern retains characteristics similar to January. It is still the dry season, with scant amounts of rainfall and generally warmer temperatures. During this period, the average humidity rises slightly from January, inching up from 38% to 43%, indicating an increase in moisture in the air. Weather in February »Weather in March
As Kasafoni navigates into March, changes begin to occur in the overall weather. The month sees a slight increase in both temperatures and humidity, indicating the beginnings of transition into the wet season. With a significantly high rainfall of 17mm (0.67") compared to the previous months, March experiences the first substantial rain of the year. Weather in March »Weather in April
April marks the beginning of what is traditionally known as the long rainy season in Sierra Leone. This period is characterised by higher rainfall, increased cloud coverage, and a decrease in sunshine hours. The rainfall increases dramatically to an average of 53mm (2.09"). Weather in April »Weather in May
The rainy season in Kasafoni, Sierra Leone marches on steadily into May. Weather patterns reveal further increase in rainfall, high humidity, and fewer hours of sunshine. A notable fact is that the average rainfall volume soars to 139mm (5.47"), marking May as a significantly wet month. Weather in May »Weather in June
June continues along the trajectory of May, remaining entrenched within the wet season. Rainfall remains high with rising humidity levels, and the city of Kasafoni witnesses certain days with reduced visibility due to precipitation. Weather in June »Weather in July
July witnesses the rain-soaked trend of the preceding months continuing unabated. The overall weather is predominantly damp, with high humidity, cloud percentage, and rainfall that peaks to its maximum yearly average of 204mm (8.03"). Weather in July »Weather in August
The wet season persistently holds on in August, with the weather featuring the usual high amounts of rainfall, cloud coverage, and humidity. The month comes with an increase in rainfall to 227mm (8.94"), the highest monthly rain experienced in the year. Weather in August »Weather in September
September stands out as the last of the intensely wet months that typify Kasafoni's weather. It experiences a decrease in rainfall, which suggests the gradual transition to the dry season. Visitors and locals alike must adapt to the high levels of humidity and the lower visibility due to persistent rain showers. Weather in September »Weather in October
The advent of October heralds a shift in Kasafoni's weather patterns. Rainfall dramatically drops to 186mm (7.32") from the extremely high levels of the previous month. The temperatures slightly ascend as the city starts to dry up from the long rainy months. Weather in October »Weather in November
November brings about a significant break in the weather trends of preceding months. Most notably, rainfall significantly lessens to 51mm (2.01"), paving the way for the dry season. There's a marked decrease in humidity, making the weather more pleasant. Weather in November »Weather in December
Kasafoni's weather in December celebrates the full arrival of the dry season. The city experiences a steep drop in rainfall to 4mm (0.16"), identical to the level recorded at the beginning of the year. Sunshine dominates the skies, and temperatures trend towards the cooler side. Weather in December »Updated: Aug 1, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is the least humid month, with an average relative humidity of 38%.
In Kasafoni, during the entire year, the rain falls for 214.8 days and collects up to 1239mm (48.78") of precipitation.
The months with the highest UV index are January through April, with an average maximum UV index of 7.
February is the month with the least rainfall. Rain falls for 2.4 days and accumulates 2mm (0.08") of precipitation.
With an average of 9.9h of sunshine, February has the most sunshine of the year.
In Kasafoni, March is the month with the highest recorded average temperatures, measuring a high of 38°C (100.4°F) and a low of 20.6°C (69.1°F).
With an average of 12h and 36min of daylight, June has the longest days of the year.
June through August, with an average maximum UV index of 5, are months with the lowest UV index in Kasafoni.
With average temperatures fluctuating between a high of 26.3°C (79.3°F) and a low of 20.6°C (69.1°F), August stands out as the coldest month.
August is the most humid month, with an average relative humidity of 94%.
The month with the most rainfall is August, when the rain falls for 30.3 days and typically aggregates up to 227mm (8.94") of precipitation.
The month with the least sunshine in Kasafoni is August, with an average of 3.5h of sunshine.
The month with the shortest days is December, with an average of 11h and 36min of daylight.
Kasafoni does not observe Daylight Saving Time (DST). GMT timezone is used throughout the entire year.
Average temperature
Kasafoni, Sierra Leone
The warmest month (with the highest average high temperature) is March (38°C).
The month with the lowest average high temperature is August (26.3°C).
The month with the highest average low temperature is May (22°C).
The coldest month (with the lowest average low temperature) is December (17.3°C).
Average pressure
Kasafoni, Sierra Leone
- Average pressure in January:
1012mbar - Average pressure in February:
1010.8mbar - Average pressure in March:
1010.5mbar - Average pressure in April:
1010.5mbar - Average pressure in May:
1011.9mbar - Average pressure in June:
1013.7mbar
- Average pressure in July:
1014.2mbar - Average pressure in August:
1013.9mbar - Average pressure in September:
1013.4mbar - Average pressure in October:
1012.2mbar - Average pressure in November:
1011.6mbar - Average pressure in December:
1012mbar
The month with the highest atmospheric pressure is July (1014.2mbar).
The months with the lowest atmospheric pressure are March and April (1010.5mbar).
Average wind speed
Kasafoni, Sierra Leone
- Average wind speed in January:
6km/h - Average wind speed in February:
6.1km/h - Average wind speed in March:
6.8km/h - Average wind speed in April:
7.3km/h - Average wind speed in May:
6.9km/h - Average wind speed in June:
6.2km/h
- Average wind speed in July:
6.4km/h - Average wind speed in August:
6.6km/h - Average wind speed in September:
4.8km/h - Average wind speed in October:
4km/h - Average wind speed in November:
3.9km/h - Average wind speed in December:
5.6km/h
The windiest month (with the highest average wind speed) is April (7.3km/h).
The calmest month (with the lowest average wind speed) is November (3.9km/h).
Average humidity
Kasafoni, Sierra Leone
The month with the highest relative humidity is August (94%).
The month with the lowest relative humidity is January (38%).
Average rainfall
Kasafoni, Sierra Leone
The wettest month (with the highest rainfall) is August (227mm).
The driest month (with the least rainfall) is February (2mm).
Average rainfall days
Kasafoni, Sierra Leone
- Average rainfall days in January:
1.9 days - Average rainfall days in February:
2.4 days - Average rainfall days in March:
8.5 days - Average rainfall days in April:
14.2 days - Average rainfall days in May:
24.3 days - Average rainfall days in June:
28 days
- Average rainfall days in July:
28.7 days - Average rainfall days in August:
30.3 days - Average rainfall days in September:
28.8 days - Average rainfall days in October:
28.4 days - Average rainfall days in November:
16.9 days - Average rainfall days in December:
2.4 days
The month with the highest number of rainy days is August (30.3 days).
The month with the least rainy days is January (1.9 days).
Average daylight / Average sunshine
Kasafoni, Sierra Leone
- Average daylight in January:
11h and 42min - Average daylight in February:
11h and 48min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 18min - Average daylight in May:
12h and 30min - Average daylight in June:
12h and 36min
- Average daylight in July:
12h and 36min - Average daylight in August:
12h and 24min - Average daylight in September:
12h and 12min - Average daylight in October:
11h and 54min - Average daylight in November:
11h and 42min - Average daylight in December:
11h and 36min
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).
- Average sunshine in January:
9h and 48min - Average sunshine in February:
9h and 54min - Average sunshine in March:
9h and 42min - Average sunshine in April:
9h and 18min - Average sunshine in May:
7h and 54min - Average sunshine in June:
5h and 48min
- Average sunshine in July:
4h and 18min - Average sunshine in August:
3h and 30min - Average sunshine in September:
5h and 12min - Average sunshine in October:
7h and 12min - Average sunshine in November:
8h and 54min - Average sunshine in December:
9h and 42min
The month with the most sunshine is February (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 3h and 30min).
Average sunshine days
Kasafoni, Sierra Leone
- Average sunshine days in January:
28.6 days - Average sunshine days in February:
24.8 days - Average sunshine days in March:
20.1 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
5.3 days - Average sunshine days in June:
1.1 days
- Average sunshine days in July:
1.1 days - Average sunshine days in August:
0.5 days - Average sunshine days in September:
0.9 days - Average sunshine days in October:
1.8 days - Average sunshine days in November:
10.1 days - Average sunshine days in December:
27.5 days
The month with the most sunshine days is January (28.6 days).
The month with the least sunshine days is August (0.5 days).
Average UV index
Kasafoni, Sierra Leone
The months with the highest UV index are January, February, March and April (UV index 7).
The months with the lowest UV index are June, July and August (UV index 5).
Average cloud cover
Kasafoni, Sierra Leone
The month with the most cloud cover is August (Cloud cover 85).
The months with the least cloud cover are January, February and December (Cloud cover 11).
Average visibility
Kasafoni, Sierra Leone
The months with the highest visibility are January, February, March and December (10km).
The months with the lowest visibility are August and September (5km).
