Climate and monthly weather forecastBum, Sierra Leone
Climate and monthly weather forecast
Weather in January
January, the same as December, in Bum, Sierra Leone, is a hot winter month, with an average temperature fluctuating between 20.1°C (68.2°F) and 34.8°C (94.6°F). The advent of January brings an average high-temperature of a still tropical 34.8°C (94.6°F), almost identical to the preceding month. Weather in January »Weather in February
February, the last month of the winter in Bum, is a fiery hot month, with an average temperature varying between 36.8°C (98.2°F) and 21.5°C (70.7°F). February and March mark Bum's peak of temperatures, averaging a high-temperature of 36.8°C (98.2°F). During February, the heat index is appraised at a blazing hot 55°C (131°F). Weather in February »Weather in March
March, the first month of the spring in Bum, is also a fiery hot month, with temperature in the range of an average low of 22.9°C (73.2°F) and an average high of 36.8°C (98.2°F). In Bum, Sierra Leone, the months of February and March register the highest average temperatures, peaking at 36.8°C (98.2°F). Throughout March, the heat index is appraised at a blazing hot 56°C (132.8°F). Weather in March »Weather in April
April, like March, in Bum, Sierra Leone, is another sweltering spring month, with an average temperature varying between 23.8°C (74.8°F) and 35.8°C (96.4°F). Bum notes an average high-temperature of a still torrid 35.8°C (96.4°F) in April, hardly diverging from March. Weather in April »Weather in May
The last month of the spring, May, is another hot month in Bum, Sierra Leone, with temperature in the range of an average low of 23.4°C (74.1°F) and an average high of 33.1°C (91.6°F). Transitioning into May, Bum experiences an average high-temperature of a tropical 33.1°C (91.6°F), marking a minor shift from the preceding month. Weather in May »Weather in June
The first month of the summer, June, is also a hot month in Bum, Sierra Leone, with an average temperature ranging between max 30.3°C (86.5°F) and min 22.4°C (72.3°F). In June, Bum notes an average high-temperature of a still tropical 30.3°C (86.5°F), hardly different from the preceding month. Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Bum, Sierra Leone, with an average temperature ranging between min 21.8°C (71.2°F) and max 28.1°C (82.6°F). The average high-temperature is a warm 28.1°C (82.6°F) in July, hardly different from the 30.3°C (86.5°F) recorded in June. Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Bum, Sierra Leone, with an average temperature fluctuating between 27.5°C (81.5°F) and 21.8°C (71.2°F). August, noted for its average high-temperature of 27.5°C (81.5°F) and an average low-temperature of 21.8°C (71.2°F), is considered the coldest month. For most parts of August, the heat index is appraised at a hot 32°C (89.6°F). Weather in August »Weather in September
September, the first month of the autumn in Bum, is also a moderately hot month, with temperature in the range of an average low of 21.8°C (71.2°F) and an average high of 28.6°C (83.5°F). Bum registers an average high-temperature of a still warm 28.6°C (83.5°F) with the arrival of September, showing minor deviation from the preceding month. Weather in September »Weather in October
October in Bum, Sierra Leone, is a hot autumn month, with an average temperature varying between 22.1°C (71.8°F) and 30.7°C (87.3°F). The arrival of October brings an average high-temperature of a hot 30.7°C (87.3°F), subtly diverging from September's 28.6°C (83.5°F). Weather in October »Weather in November
The last month of the autumn, November, is also a hot month in Bum, Sierra Leone, with temperature in the range of an average low of 22.2°C (72°F) and an average high of 31.5°C (88.7°F). The beginning of November records an average high-temperature of a still tropical 31.5°C (88.7°F), almost echoing the conditions of the previous month. Weather in November »Weather in December
December, the first month of the winter in Bum, is still a tropical month, with an average temperature varying between 32.8°C (91°F) and 20.8°C (69.4°F). The onset of December manifests an average high-temperature of a still hot 32.8°C (91°F), demonstrating a minor variation from the preceding month. Weather in December »Updated: Jan 27, 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
The month with the least rainfall is January, when the rain falls for 4.3 days and typically collects 5mm (0.2") of precipitation.
Throughout the year, there are 256.6 rainfall days, and 1628mm (64.09") of precipitation is accumulated.
With an average of 9.6h of sunshine, January has the most sunshine of the year.
The months with the highest UV index are January through April, November and December, with an average maximum UV index of 7.
Bum sees its peak of temperatures during February and March, with an average high-temperature of 36.8°C (98.2°F).
The least humid month is February, with an average relative humidity of 66%.
June has the longest days of the year in Bum, with an average of 12h and 36min of daylight.
July and August, with an average maximum UV index of 5, are months with the lowest UV index.
August stands out as Bum's coldest month, with temperatures ranging between an average high of 27.5°C (81.5°F) and a low of 21.8°C (71.2°F).
The months with the highest humidity are August and September, with an average relative humidity of 92%.
August is the month with the most rainfall in Bum, Sierra Leone. Rain falls for 30.5 days and accumulates 341mm (13.43") of precipitation.
With an average of 3.1h of sunshine, August has the least sunshine of the year in Bum.
With an average of 11h and 42min of daylight, December has the shortest days of the year in Bum, Sierra Leone.
Bum does not utilize Daylight Saving Time (DST). GMT timezone is used throughout the entire year.
Average temperature
Bum, Sierra Leone
The warmest months (with the highest average high temperature) are February and March (36.8°C).
The month with the lowest average high temperature is August (27.5°C).
The month with the highest average low temperature is April (23.8°C).
The coldest month (with the lowest average low temperature) is January (20.1°C).
Average pressure
Bum, Sierra Leone
- Average pressure in January:
1011.4mbar - Average pressure in February:
1010.5mbar - Average pressure in March:
1010.5mbar - Average pressure in April:
1010.6mbar - Average pressure in May:
1011.8mbar - Average pressure in June:
1013.5mbar
- Average pressure in July:
1014.1mbar - Average pressure in August:
1013.8mbar - Average pressure in September:
1013.1mbar - Average pressure in October:
1011.8mbar - Average pressure in November:
1011.1mbar - Average pressure in December:
1011.3mbar
The month with the highest atmospheric pressure is July (1014.1mbar).
The months with the lowest atmospheric pressure are February and March (1010.5mbar).
Average wind speed
Bum, Sierra Leone
- Average wind speed in January:
4.5km/h - Average wind speed in February:
5.2km/h - Average wind speed in March:
5.8km/h - Average wind speed in April:
5.9km/h - Average wind speed in May:
5.1km/h - Average wind speed in June:
5.2km/h
- Average wind speed in July:
5.7km/h - Average wind speed in August:
5.8km/h - Average wind speed in September:
5km/h - Average wind speed in October:
4.1km/h - Average wind speed in November:
3.5km/h - Average wind speed in December:
4km/h
The windiest month (with the highest average wind speed) is April (5.9km/h).
The calmest month (with the lowest average wind speed) is November (3.5km/h).
Average humidity
Bum, Sierra Leone
The months with the highest relative humidity are August and September (92%).
The month with the lowest relative humidity is February (66%).
Average rainfall
Bum, Sierra Leone
The wettest month (with the highest rainfall) is August (341mm).
The driest month (with the least rainfall) is January (5mm).
Average rainfall days
Bum, Sierra Leone
- Average rainfall days in January:
4.3 days - Average rainfall days in February:
6.1 days - Average rainfall days in March:
15.8 days - Average rainfall days in April:
20.3 days - Average rainfall days in May:
28 days - Average rainfall days in June:
28.9 days
- Average rainfall days in July:
30.4 days - Average rainfall days in August:
30.5 days - Average rainfall days in September:
29.7 days - Average rainfall days in October:
30.1 days - Average rainfall days in November:
25.2 days - Average rainfall days in December:
7.3 days
The month with the highest number of rainy days is August (30.5 days).
The month with the least rainy days is January (4.3 days).
Average daylight / Average sunshine
Bum, Sierra Leone
- Average daylight in January:
11h and 42min - Average daylight in February:
11h and 54min - 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 30min - Average daylight in August:
12h and 24min - Average daylight in September:
12h and 12min - Average daylight in October:
12h and 0min - Average daylight in November:
11h and 48min - Average daylight in December:
11h and 42min
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 42min).
- Average sunshine in January:
9h and 36min - Average sunshine in February:
9h and 18min - Average sunshine in March:
8h and 48min - Average sunshine in April:
8h and 12min - Average sunshine in May:
6h and 48min - Average sunshine in June:
5h and 12min
- Average sunshine in July:
3h and 42min - Average sunshine in August:
3h and 6min - Average sunshine in September:
4h and 30min - Average sunshine in October:
6h and 18min - Average sunshine in November:
7h and 54min - Average sunshine in December:
9h and 6min
The month with the most sunshine is January (Average sunshine: 9h and 36min).
The month with the least sunshine is August (Average sunshine: 3h and 6min).
Average sunshine days
Bum, Sierra Leone
- Average sunshine days in January:
25.3 days - Average sunshine days in February:
20.4 days - Average sunshine days in March:
12.3 days - Average sunshine days in April:
7.3 days - Average sunshine days in May:
1.9 days - Average sunshine days in June:
0.8 days
- Average sunshine days in July:
0.3 days - Average sunshine days in August:
0.3 days - Average sunshine days in September:
0.2 days - Average sunshine days in October:
0.8 days - Average sunshine days in November:
2.2 days - Average sunshine days in December:
21 days
The month with the most sunshine days is January (25.3 days).
The month with the least sunshine days is September (0.2 days).
Average UV index
Bum, Sierra Leone
The months with the highest UV index are January, February, March, April, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 5).
Average cloud cover
Bum, Sierra Leone
The month with the most cloud cover is August (Cloud cover 85).
The month with the least cloud cover is January (Cloud cover 23).
Average visibility
Bum, Sierra Leone
The months with the highest visibility are February, March and April (9km).
The months with the lowest visibility are June, July, August, September, October and November (6km).
