May weather forecast
Wilberforce, Sierra Leone

May

Weather in May

May marks a substantial shift in the weather pattern in Wilberforce, Sierra Leone, as the wet season commences, with rainfall increasing dramatically to measurements averaging 66mm (2.6"). This heavy precipitation jump results in soaring relative humidity levels. Even though the rain does somewhat affect visibility, the significant reduction in sunshine hours is mostly due to increased cloud coverage. This climate alteration, marked with regular intervals of heavy rainfall sets the stage for the ensuing months of the wet season.

Temperature

May's onset brings an average high-temperature of a still tropical 30.7°C (87.3°F), showing a minute difference from April's 30.8°C (87.4°F). Wilberforce's average temperature during the nights of May is recorded at a moderately hot 26.2°C (79.2°F).

Heat index

In May, the heat index is computed to be a very hot 39°C (102.2°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

The average relative humidity in May in Wilberforce is 78%.

Rainfall

In Wilberforce, during May, the rain falls for 19.6 days and regularly aggregates up to 66mm (2.6") of precipitation. Throughout the year, in Wilberforce, there are 205.9 rainfall days, and 1507mm (59.33") of precipitation is accumulated.

Daylight

In Wilberforce, the average length of the day in May is 12h and 31min.
On the first day of the month, sunrise is at 06:37 and sunset at 19:03. On the last day of May, in Wilberforce, Sierra Leone, sunrise is at 06:33 and sunset at 19:08 GMT.

Sunshine

In May, the average sunshine is 8.3h.

UV index

January through June, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, a regular UV index of 7 translates into these guidelines:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.

Frequently asked questions

Is it hot in Wilberforce during May?
Wilberforce in May has an average high-temperature of 30.7°C (87.3°F) and an average low-temperature of 26.2°C (79.2°F). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in May is computed to be 39°C (102.2°F).
What is the average humidity in May in Wilberforce?
The average relative humidity in May in Wilberforce is 78%.
How much does it rain in Wilberforce in May?
In Wilberforce, Sierra Leone, in May, during 19.6 rainfall days, 66mm (2.6") of precipitation is typically accumulated.
What is the average length of the day in May in Wilberforce?
In May, the average day length is 12h and 31min.
When are sunrise and sunset in May in Wilberforce?
In May, on the first day of the month, sunrise is at 06:37 and sunset at 19:03. On the last day of the month, in Wilberforce, Sierra Leone, sunrise is at 06:33 and sunset at 19:08 GMT.
How many hours of sunshine does Wilberforce have in May?
In Wilberforce, Sierra Leone, the average sunshine duration in May is 8.3h.
What is the month with the highest UV index in Wilberforce?
The months with the highest UV index in Wilberforce, Sierra Leone, are January through June, September through December, with an average maximum UV index of 7.
How high is the UV index in May in Wilberforce?
In May, the average daily maximum UV index in Wilberforce, Sierra Leone, is 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May - Wilberforce, Sierra Leone
Average temperature in May
Wilberforce, Sierra Leone
  • Average high temperature in May: 30.7°C

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).

  • Average low temperature in May: 26.2°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 in May - Wilberforce, Sierra Leone
Average pressure in May
Wilberforce, Sierra Leone
  • Average pressure in May: 1011.6mbar

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 in May - Wilberforce, Sierra Leone
Average wind speed in May
Wilberforce, Sierra Leone
  • Average wind speed in May: 10.4km/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 in May - Wilberforce, Sierra Leone
Average humidity in May
Wilberforce, Sierra Leone
  • Average humidity in May: 78%

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

Average rainfall in May - Wilberforce, Sierra Leone
Average rainfall in May
Wilberforce, Sierra Leone
  • Average rainfall in May: 66mm

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

Average rainfall days in May - Wilberforce, Sierra Leone
Average rainfall days in May
Wilberforce, Sierra Leone
  • Average rainfall days in May: 19.6 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 in May / Average sunshine in May - Wilberforce, Sierra Leone
Average daylight in May /
Average sunshine in May
Wilberforce, Sierra Leone
  • Average daylight in May: 12h and 3min

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 May: 8h and 2min

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 in May - Wilberforce, Sierra Leone
Average sunshine days in May
Wilberforce, Sierra Leone
  • Average sunshine days in May: 8.8 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 in May - Wilberforce, Sierra Leone
Average UV index in May
Wilberforce, Sierra Leone
  • Average UV index in May: 7

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 in May - Wilberforce, Sierra Leone
Average cloud cover in May
Wilberforce, Sierra Leone
  • Average cloud cover in May: 39

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 in May - Wilberforce, Sierra Leone
Average visibility in May
Wilberforce, Sierra Leone
  • Average visibility in May: 10km

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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