May weather forecast
Foiya, Sierra Leone

May

Weather in May

May, the last month of the spring in Foiya, is another hot month, with temperature in the range of an average low of 26.2°C (79.2°F) and an average high of 30.7°C (87.3°F).

Temperature

Transitioning from April to May, Foiya observes an average high-temperature of a still hot 30.7°C (87.3°F), differing subtly from the previous month. During May, Foiya's nights hold steady with an average temperature of 26.2°C (79.2°F), barely dropping from the daytime highs.

Heat index

May's mean heat index is calculated to be a torrid 39°C (102.2°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In May, the average relative humidity is 78%.

Rainfall

In Foiya, during May, the rain falls for 19.6 days and regularly aggregates up to 66mm (2.6") of precipitation. In Foiya, during the entire year, the rain falls for 205.9 days and collects up to 1507mm (59.33") of precipitation.

Daylight

In Foiya, the average length of the day in May is 12h and 30min.
On the first day of the month, sunrise is at 06:36 and sunset at 19:01. On the last day of May, sunrise is at 06:32 and sunset at 19:06 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 estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 7 during May leads to these advisories:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.

Frequently asked questions

How hot is May in Foiya?
The high-temperature, in May, in Foiya, is 30.7°C (87.3°F), while the low-temperature averages to 26.2°C (79.2°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in May is calculated to be 39°C (102.2°F).
What is the average humidity in May in Foiya?
In May, the average relative humidity is 78%.
How many days does it rain in May in Foiya?
In Foiya, during May, the rain falls for 19.6 days and regularly aggregates up to 66mm (2.6") of precipitation.
What is the average length of the day in May in Foiya?
In Foiya, Sierra Leone, the average day length in May is 12h and 30min.
When is the sunrise / sunset in May in Foiya?
In May, on the first day of the month, sunrise is at 06:36 and sunset at 19:01. On the last day of the month, in Foiya, Sierra Leone, sunrise is at 06:32 and sunset at 19:06 GMT.
How many hours of sunshine does Foiya have in May?
In May, the average sunshine duration is 8.3h.
What are the months with the highest UV index in Foiya?
January through June, September through December, with an average maximum UV index of 7, are months with the highest UV index.
How high is the UV index in May in Foiya?
In May, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to the Sun's 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
Foiya, 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
Foiya, 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
Foiya, 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
Foiya, 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
Foiya, 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
Foiya, 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
Foiya, 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 42min).

  • 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
Foiya, 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
Foiya, 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
Foiya, 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
Foiya, 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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