Climate - Banjul (Gambia)

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Banjul's climate is tropical, with a long dry season from November to May and a rainy season from June to October.
The city is the capital of the Gambia and is located on the coast, on an island (called St. Mary's Island) between the Atlantic Ocean and the Gambia River estuary.
The Banjul metropolitan area includes cities that are located on the mainland and are part of the Kanifing district.
Due to the influence of the ocean, temperatures are more stable than in the interior of the Gambia, however, the hottest period, at least during the day, goes from February to April. In May, the temperatures drop a little but the humidity increases, even if the rains have not yet started, because the wind begins to blow directly from the west, from the sea, while in the previous months it came from the north.

Banjul - Climate data

The average temperature of the coldest month (January) is of 25.0 °C (76.9 °F), that of the warmest month (June) is of 28.2 °C (82.8 °F). Here are the average temperatures.
Precipitation amounts to 975 millimeters (38.4 inches) per year: so, it is at an intermediate level. It ranges from 0 mm (0 in) in the driest months (February, March, April) to 345 mm (13.6 in) in the wettest one (August). Here is the average precipitation.
The sea temperature ranges from 21 °C (70 °F) in February, March to 29 °C (84 °F) in October. Here are the average sea temperatures.
On average, there are around 2625 sunshine hours per year. Here are the average sunshine hours per day.

Banjul - Weather by month

Based on the period 1991-2020

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In January, the coldest month of the year, the weather in Banjul is usually warm to hot. However, there are remarkable differences between night and day. The average temperature is of 25.0 °C (77 °F), with a minimum of 17.3 °C (63.2 °F) and a maximum of 32.6 °C (90.6 °F).
On the coldest nights of the month, the temperature usually drops to around 13 °C (56 °F).
On the warmest days of the month, the temperature usually reaches around 37 °C (98.5 °F).
Precipitation amounts to only 1 mm (0 in), distributed over 0 days.
The day lasts on average 11 hours and 25 minutes.
There are on average 6.5 sunshine hours per day. So, the sun shines 59% of the time.
The average humidity is 45%.
The average wind speed is 12 kph (8 mph).
The average sea temperature is of 22 °C (72 °F). Therefore, the sea is cool for swimming.

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In February, the weather in Banjul is usually warm to hot. However, there are remarkable differences between night and day. The average temperature is of 26.2 °C (79 °F), with a minimum of 18.3 °C (64.9 °F) and a maximum of 34 °C (93.3 °F).
On the coldest nights of the month, the temperature usually drops to around 14.5 °C (58 °F).
On the warmest days of the month, the temperature usually reaches around 39 °C (102 °F).
Precipitation amounts to only 0 mm (0 in), so on average it never rains in the whole month.
The day lasts on average 11 hours and 40 minutes.
There are on average 8.5 sunshine hours per day. So, the sun shines 72% of the time.
The average humidity is 44%.
The average wind speed is 14 kph (9 mph).
The average sea temperature is of 21 °C (70 °F). Therefore, the sea is cool for swimming.

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In March, the weather in Banjul is usually warm to hot. However, there are remarkable differences between night and day. The average temperature is of 26.8 °C (80 °F), with a minimum of 19 °C (66.2 °F) and a maximum of 34.7 °C (94.5 °F).
On the coldest nights of the month, the temperature usually drops to around 15.5 °C (60 °F).
On the warmest days of the month, the temperature usually reaches around 40.5 °C (105 °F).
Precipitation amounts to only 0 mm (0 in), so on average it never rains in the whole month.
The day lasts on average 12 hours and 5 minutes.
There are on average 8.5 sunshine hours per day. So, the sun shines 71% of the time.
The average humidity is 52%.
The average wind speed is 14 kph (9 mph).
The average sea temperature is of 21 °C (70 °F). Therefore, the sea is cool for swimming.

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In April, the weather in Banjul is usually warm to hot. However, there are remarkable differences between night and day. The average temperature is of 26.6 °C (80 °F), with a minimum of 19.7 °C (67.5 °F) and a maximum of 33.6 °C (92.4 °F).
On the coldest nights of the month, the temperature usually drops to around 17 °C (62.5 °F).
On the warmest days of the month, the temperature usually reaches around 40.5 °C (105 °F).
Precipitation amounts to only 0 mm (0 in), so on average it never rains in the whole month.
The day lasts on average 12 hours and 30 minutes.
There are on average 8.5 sunshine hours per day. So, the sun shines 67% of the time.
The average humidity is 61%.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 22 °C (71.5 °F). Therefore, the sea is cool for swimming.

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In May, the weather in Banjul is usually warm to hot. The average temperature is of 27.0 °C (81 °F), with a minimum of 21.2 °C (70.1 °F) and a maximum of 32.9 °C (91.2 °F).
On the coldest nights of the month, the temperature usually drops to around 17.5 °C (63.5 °F).
On the warmest days of the month, the temperature usually reaches around 38.5 °C (101.5 °F).
Precipitation amounts to only 1 mm (0 in), distributed over 0 days.
The day lasts on average 12 hours and 50 minutes.
There are on average 7.5 sunshine hours per day. So, the sun shines 58% of the time.
The average humidity is 69%.
The average wind speed is 14 kph (8 mph).
The average sea temperature is of 24 °C (75 °F). Therefore, the sea is warm enough for swimming.

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In June, the warmest month of the year, the weather in Banjul is usually very hot. The average temperature is of 28.2 °C (83 °F), with a minimum of 23.5 °C (74.4 °F) and a maximum of 32.9 °C (91.3 °F).
On the coldest nights of the month, the temperature usually drops to around 20 °C (68.5 °F).
On the warmest days of the month, the temperature usually reaches around 36.5 °C (98 °F).
Precipitation amounts to 65 mm (2.6 in), distributed over 5 days.
The day lasts on average 12 hours and 55 minutes.
There are on average 6.5 sunshine hours per day. So, the sun shines 52% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).
The average sea temperature is of 27.5 °C (81 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In July, the weather in Banjul is usually very hot. The average temperature is of 27.6 °C (82 °F), with a minimum of 23.6 °C (74.6 °F) and a maximum of 31.6 °C (88.8 °F).
On the coldest nights of the month, the temperature usually drops to around 20 °C (68 °F).
On the warmest days of the month, the temperature usually reaches around 35 °C (95 °F).
Precipitation amounts to 230 mm (9.1 in), distributed over 14 days.
The day lasts on average 12 hours and 50 minutes.
There are on average 6 sunshine hours per day. So, the sun shines 46% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is 10 kph (6 mph).
The average sea temperature is of 28.5 °C (83.5 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In August, the weather in Banjul is usually warm to hot. The average temperature is of 27.2 °C (81 °F), with a minimum of 23.5 °C (74.2 °F) and a maximum of 31 °C (87.8 °F).
On the coldest nights of the month, the temperature usually drops to around 20.5 °C (69.5 °F).
On the warmest days of the month, the temperature usually reaches around 34 °C (93 °F).
Precipitation amounts to 345 mm (13.6 in), distributed over 19 days.
The day lasts on average 12 hours and 30 minutes.
There are on average 6 sunshine hours per day. So, the sun shines 49% of the time.
The average humidity is 86%. Hence, the air is normally humid.
The average wind speed is 9 kph (6 mph).
The average sea temperature is of 28.5 °C (83 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In September, the weather in Banjul is usually warm to hot. The average temperature is of 27.3 °C (81 °F), with a minimum of 23.1 °C (73.5 °F) and a maximum of 31.5 °C (88.7 °F).
On the coldest nights of the month, the temperature usually drops to around 20.5 °C (68.5 °F).
On the warmest days of the month, the temperature usually reaches around 34.5 °C (94.5 °F).
Precipitation amounts to 255 mm (10 in), distributed over 16 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 6 sunshine hours per day. So, the sun shines 50% of the time.
The average humidity is 86%. Hence, the air is normally humid.
The average wind speed is 7 kph (5 mph).
The average sea temperature is of 28.5 °C (83.5 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In October, the weather in Banjul is usually very hot. The average temperature is of 28.2 °C (83 °F), with a minimum of 23.4 °C (74.1 °F) and a maximum of 33 °C (91.3 °F).
On the coldest nights of the month, the temperature usually drops to around 20.5 °C (68.5 °F).
On the warmest days of the month, the temperature usually reaches around 36 °C (97 °F).
Precipitation amounts to 75 mm (3 in), distributed over 6 days.
The day lasts on average 11 hours and 50 minutes.
There are on average 7 sunshine hours per day. So, the sun shines 59% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is 7 kph (4 mph).
The average sea temperature is of 29 °C (84 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In November, the weather in Banjul is usually warm to hot. The average temperature is of 27.2 °C (81 °F), with a minimum of 20.8 °C (69.4 °F) and a maximum of 33.7 °C (92.6 °F).
On the coldest nights of the month, the temperature usually drops to around 16.5 °C (62 °F).
On the warmest days of the month, the temperature usually reaches around 37 °C (99 °F).
Precipitation amounts to only 2 mm (0.1 in), distributed over 0 days.
The day lasts on average 11 hours and 30 minutes.
There are on average 8 sunshine hours per day. So, the sun shines 71% of the time.
The average humidity is 67%.
The average wind speed is 7 kph (4 mph).
The average sea temperature is of 28 °C (82 °F). Therefore, the sea is pleasantly warm and allows long swims.

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In December, the weather in Banjul is usually warm to hot. However, there are remarkable differences between night and day. The average temperature is of 25.6 °C (78 °F), with a minimum of 18.2 °C (64.8 °F) and a maximum of 32.9 °C (91.3 °F).
On the coldest nights of the month, the temperature usually drops to around 14 °C (57 °F).
On the warmest days of the month, the temperature usually reaches around 37 °C (98.5 °F).
Precipitation amounts to only 1 mm (0 in), distributed over 0 days.
The day lasts on average 11 hours and 20 minutes.
There are on average 7 sunshine hours per day. So, the sun shines 60% of the time.
The average humidity is 52%.
The average wind speed is 10 kph (6 mph).
The average sea temperature is of 25.5 °C (77.5 °F). Therefore, the sea is warm enough for swimming.