Climate and monthly weather forecastAberdeen, Sierra Leone
Climate and monthly weather forecast
The climate of Aberdeen
Located in the realm of Sierra Leone, the coastal town of Aberdeen presents textbook tropical monsoon conditions, namely the Köppen climate classification - Am. This implies that Aberdeen experiences high temperatures, heavy rainfall, and high humidity throughout the year, a testament to its geographic positioning.Peering into the climatological data, it is observed that temperatures do not fluctuate considerably. High temperatures range from 27.3°C (81.1°F) in August to 31.4°C (88.5°F) in January, while minimum temperatures vary from 23.9°C (75°F) in August to 26.2°C (79.2°F) in May. The relatively consistent year-round temperature is typical of tropical climates.
Humidity levels from 68% in January and December to 86% in August show a fairly moist atmosphere. Concurrently, wind speeds stay relatively stable between 6.8km/h (4.2mph) and 12km/h (7.5mph), with gusts reaching up to 18.4km/h (11.4mph) in August. Moreover, atmospheric pressure shows insignificant deviations throughout the year, staying close to the yearly average of 1011mb.
Significant differences, however, are observed in the amount and frequency of rainfall. The town receives minimum rainfall in February and maximum in July and August of precipitation. In Aberdeen, during the entire year, the rain falls for 205.9 days and collects up to 1507mm (59.33") of precipitation. In January, the average length of the day is 11h and 41min.
On the first day of January, sunrise is at 07:07 and sunset at 18:45. On the last day of the month, sunrise is at 07:13 and sunset at 18:59 GMT. In January, the average sunshine is 9.8h. The months with the highest UV index are January through June, September through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: In January, the average maximum UV index of 7 translates into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Weather in February
The weather in February in Aberdeen, Sierra Leone remains quite similar to that of its predecessor month, January. However, the average amount of sunshine per day slightly increases to 9.9 hours, making for brighter days. The temperatures maintain a mild profile, with cool breezy nights being a common feature. Weather in February »Weather in March
Going from February to March, Aberdeen, Sierra Leone experiences an extension of the sunny and dry weather pattern. However, the shift towards the wet season begins with an increase in rainfall to 6mm (0.24"). Additionally, the increase in both minimum and maximum temperatures signifies the onset of the warmer months. Weather in March »Weather in April
April marks a significant change in weather for Aberdeen, Sierra Leone, as this month witnesses the transition from the dry season to the wet season. There is a whopping increase in rainfall from 6mm (0.24") in March to 18mm (0.71"), signaling the start of the monsoon season. Weather in April »Weather in May
As the heart of the monsoon season, May sees a significant shift in the weather of Aberdeen, Sierra Leone. The city records the highest rainfall of the year, with amounts escalating to 66mm (2.6"). The escalating rainfall and relative humidity make for a moist and damp atmosphere. Weather in May »Weather in June
June, in Aberdeen, Sierra Leone, is characterized by intense rainfall. Despite being midway through the year, it emulates typical monsoon weather patterns. High relative humidity levels attest to the air's saturated state and the propensity of rain. Weather in June »Weather in July
In July, the persistent rainfall in Aberdeen, Sierra Leone achieves its pinnacle with 387mm (15.24") average rainfall. As the temperatures plateau, a wave of moderate weather engulf the city. Calm winds and overcast skies contribute to the dominant moist atmosphere. Weather in July »Weather in August
August continues the trend of heavy rainfall from July in Aberdeen, Sierra Leone. As the city receives 391mm (15.39") rainfall, the highest throughout the year. The pattern of overcast skies, high humidity and constant drizzle persists. Weather in August »Weather in September
As September rolls in, Aberdeen, Sierra Leone begins to experience a slow retreat of the monsoon. The rainfall drastically reduces to 220mm (8.66"), marking the beginning of the end of the wet season. Even though the weather paves the way for a drier season, the saturation level in the air remains high. Weather in September »Weather in October
In October, Aberdeen, Sierra Leone witnesses a significant decrease in rainfall and relative humidity. A slow revival of the dry season is noticeable, punctuated by intermittent showers and decreasing cloud cover. The sunshine hours start picking up once again, setting the stage for the drier months. Weather in October »Weather in November
By the time November arrives, Aberdeen, Sierra Leone transitions completely from the wet season to the dry season. A considerably reduced rainfall of 59mm (2.32") signifies the city's complete shift towards dry and sunny weather. Weather in November »Weather in December
December in Aberdeen, Sierra Leone brings with it an all-out dry season. The city witnesses a meagre 7mm (0.28") rainfall, making it one of the driest months of the year. This reduction refuses to impede the high visibility, a consistent feature weather. Weather in December »Updated: Jul 3, 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, recording an average high temperature of 31.4°C (88.5°F) and a low temperature of 24.1°C (75.4°F), is Aberdeen's warmest month.
With an average relative humidity of 68%, January is the least humid month.
In Aberdeen, during the entire year, the rain falls for 205.9 days and collects up to 1507mm (59.33") of precipitation.
The months with the highest UV index are January through June, September through December, with an average maximum UV index of 7.
February is the month with the least rainfall. Rain falls for 0.8 days and accumulates 1mm (0.04") of precipitation.
The month with the most sunshine in Aberdeen is February, with an average of 9.9h of sunshine.
With an average of 12h and 36min of daylight, June has the longest days of the year.
July and August, with an average maximum UV index of 6, are months with the lowest UV index.
August, on average, is the coldest month, registering a high temperature of 27.3°C (81.1°F) and a low of 23.9°C (75°F).
August is the most humid month, with an average relative humidity of 86%.
The month with the most rainfall is August, when the rain falls for 30.2 days and typically aggregates up to 391mm (15.39") of precipitation.
The month with the least sunshine is August, with an average of 4.8h of sunshine.
The month with the shortest days is December, with an average of 11h and 36min of daylight.
Aberdeen does not utilize Daylight Saving Time (DST). GMT timezone is used throughout the entire year.
Average temperature
Aberdeen, 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
Aberdeen, Sierra Leone
- Average pressure in January:
1011.2mbar - Average pressure in February:
1010.4mbar - Average pressure in March:
1010.4mbar - Average pressure in April:
1010.5mbar - Average pressure in May:
1011.6mbar - Average pressure in June:
1013.3mbar
- Average pressure in July:
1013.8mbar - Average pressure in August:
1013.4mbar - Average pressure in September:
1012.8mbar - Average pressure in October:
1011.6mbar - Average pressure in November:
1010.9mbar - Average pressure in December:
1011.1mbar
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
Aberdeen, Sierra Leone
- Average wind speed in January:
9.3km/h - Average wind speed in February:
10.7km/h - Average wind speed in March:
11.6km/h - Average wind speed in April:
11.6km/h - Average wind speed in May:
10.4km/h - Average wind speed in June:
9.7km/h
- Average wind speed in July:
11.3km/h - Average wind speed in August:
12km/h - Average wind speed in September:
9.5km/h - Average wind speed in October:
7.6km/h - Average wind speed in November:
6.8km/h - Average wind speed in December:
7.6km/h
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
Aberdeen, Sierra Leone
The month with the highest relative humidity is August (86%).
The month with the lowest relative humidity is January (68%).
Average rainfall
Aberdeen, 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
Aberdeen, Sierra Leone
- Average rainfall days in January:
1.4 days - Average rainfall days in February:
0.8 days - Average rainfall days in March:
5.8 days - Average rainfall days in April:
9.7 days - Average rainfall days in May:
19.6 days - Average rainfall days in June:
27.3 days
- Average rainfall days in July:
30.3 days - Average rainfall days in August:
30.2 days - Average rainfall days in September:
28.6 days - Average rainfall days in October:
27.9 days - Average rainfall days in November:
20.3 days - Average rainfall days in December:
4 days
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
Aberdeen, 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 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 30min - Average sunshine in May:
8h and 18min - Average sunshine in June:
6h and 36min
- Average sunshine in July:
5h and 30min - Average sunshine in August:
4h and 48min - Average sunshine in September:
6h and 42min - Average sunshine in October:
8h and 0min - Average sunshine in November:
9h and 6min - 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: 4h and 48min).
Average sunshine days
Aberdeen, Sierra Leone
- Average sunshine days in January:
29 days - Average sunshine days in February:
27.2 days - Average sunshine days in March:
24.6 days - Average sunshine days in April:
18.6 days - Average sunshine days in May:
8.8 days - Average sunshine days in June:
1.5 days
- Average sunshine days in July:
0.6 days - Average sunshine days in August:
0.5 days - Average sunshine days in September:
0.8 days - Average sunshine days in October:
2.3 days - Average sunshine days in November:
7.5 days - Average sunshine days in December:
25.5 days
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
Aberdeen, 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 cloud cover
Aberdeen, Sierra Leone
The month with the most cloud cover is August (Cloud cover 67).
The month with the least cloud cover is February (Cloud cover 11).
Average visibility
Aberdeen, 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).
