May weather forecast
Freetown, Sierra Leone

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The hilly seaside city of Freetown in Sierra Leone
The hilly seaside city of Freetown in Sierra Leone

Weather in May

As Freetown steps into May, the city's weather takes on a thoroughly wet character. Temperatures cool slightly, but high humidity could make it feel more intense. There is also a significant jump in rainfall, turning the city distinctly rainier. An increase in cloud cover diminishes the sunlight hours substantially, creating a gloomier environment throughout this month. However, what particularly stands out in May is the exceptional increase in rainfall, accumulating at a whopping 66mm (2.6"), enhancing the essence of the wet season.

Temperature

May in Freetown brings an average high-temperature of a still hot 30.7°C (87.3°F), nearly identical to the preceding month. Freetown's nocturnal average in May closely mirrors its daytime temperatures, settling at a warm 26.2°C (79.2°F).

Heat index

May's heat index is computed to be a very hot 39°C (102.2°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
To achieve cooling, the human body employs perspiration, relying on the subsequent 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. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

The average relative humidity in May is 78%.

Rainfall

In Freetown, Sierra Leone, in May, it is raining for 19.6 days, with typically 66mm (2.6") of accumulated precipitation. In Freetown, Sierra Leone, during the entire year, the rain falls for 205.9 days and collects up to 1507mm (59.33") of precipitation.

Sea temperature

In May, the average sea temperature is 28.6°C (83.5°F).
Note: For any water activity, the surface water temperatures in the range of 25°C (77°F) to 29°C (84.2°F) are deemed excellent and incredibly pleasant for longer durations.

Daylight

In Freetown, 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 19:02. On the last day of May, sunrise is at 06:33 and sunset at 19:08 GMT.

Sunshine

The average sunshine in May is 8.3h.

UV index

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 reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 7 during May leads to these advisories:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be alert! The reflection of water and sand augments UV radiation intensity.

Frequently asked questions

How hot is May in Freetown?

In Freetown, 30.7°C (87.3°F) is the average high-temperature and 26.2°C (79.2°F) is the average low-temperature during May. The average heat index (a.k.a. 'real feel', 'apparent 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 Freetown?

In Freetown, Sierra Leone, the average relative humidity in May is 78%.

How much does it rain in Freetown in May?

In May, the rain falls for 19.6 days. Throughout May, 66mm (2.6") of precipitation is accumulated.

What is the sea water temperature in May in Freetown?

In May, the average sea temperature is 28.6°C (83.5°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in May in Freetown?

In Freetown, the average day length in May is 12h and 31min.

When are sunrise and sunset in May in Freetown?

In May, on the first day of the month, sunrise is at 06:37 and sunset at 19:02. On the last day of the month, in Freetown, sunrise is at 06:33 and sunset at 19:08 GMT.

How long on average sun shines in May in Freetown?

In Freetown, Sierra Leone, the average sunshine duration in May is 8.3h.

What are the months with the highest UV index in Freetown?

January through June, September through December, with an average maximum UV index of 7, are months with the highest UV index in Freetown, Sierra Leone.

What is the UV index intensity in May in Freetown?

In Freetown, the average daily maximum UV index in May is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.

Average temperature in May
Freetown, Sierra Leone

Average temperature in May - Freetown, 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
Freetown, Sierra Leone

Average pressure in May - Freetown, 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
Freetown, Sierra Leone

Average wind speed in May - Freetown, 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
Freetown, Sierra Leone

Average humidity in May - Freetown, 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
Freetown, Sierra Leone

Average rainfall in May - Freetown, 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
Freetown, Sierra Leone

Average rainfall days in May - Freetown, 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 sea temperature in May
Freetown, Sierra Leone

Average sea temperature in May - Freetown, Sierra Leone
  • Average sea temperature in May: 28.6°C

The best months for swimming (with the highest average sea temperature) are November and December (28.8°C).
The coldest month (with the lowest average sea temperature) is August (27.3°C).

Average daylight in May /
Average sunshine in May
Freetown, Sierra Leone

Average daylight in May / Average sunshine in May - Freetown, 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
Freetown, Sierra Leone

Average sunshine days in May - Freetown, 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
Freetown, Sierra Leone

Average UV index in May - Freetown, 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
Freetown, Sierra Leone

Average cloud cover in May - Freetown, 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
Freetown, Sierra Leone

Average visibility in May - Freetown, 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).

Freetown, Sierra Leone

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