May weather forecast
Boa Entrada, São Tomé and Príncipe

May

Weather in May

The last month of the spring, May, is another warm month in Boa Entrada, São Tomé and Príncipe, with an average temperature fluctuating between 26.3°C (79.3°F) and 27.8°C (82°F).

Temperature

May's onset records an average high-temperature of a still moderately hot 27.8°C (82°F), a near match to April's 28.6°C (83.5°F). Throughout the nights in May, Boa Entrada notes an average low of 26.3°C (79.3°F), a small dip from the daytime peak.

Heat index

The heat index for May is calculated to be a hot 31°C (87.8°F). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.
When referencing the heat index, its values are suitable for shady environments and light breezes. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', determines the feeling of heat when you account for the relative humidity. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

In May, the average relative humidity is 79%.

Rainfall

In Boa Entrada, during May, the rain falls for 20.5 days and regularly aggregates up to 122mm (4.8") of precipitation. Throughout the year, there are 241.7 rainfall days, and 1287mm (50.67") of precipitation is accumulated.

Daylight

In May, the average length of the day is 12h and 8min.
On the first day of May in Boa Entrada, São Tomé and Príncipe, sunrise is at 05:26 and sunset at 17:34. On the last day of the month, sunrise is at 05:26 and sunset at 17:35 GMT.

Sunshine

The average sunshine in May is 7.6h.

UV index

January through May, October 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 risk from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 7 in May interprets into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

What is the average May temperature in Boa Entrada?
An average high-temperature, in May, in Boa Entrada, is 27.8°C (82°F) and the average low-temperature is 26.3°C (79.3°F). In May, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 31°C (87.8°F).
What is the average humidity in May in Boa Entrada?
In May, the average relative humidity in Boa Entrada, São Tomé and Príncipe, is 79%.
How much does it rain in Boa Entrada in May?
In Boa Entrada, in May, it is raining for 20.5 days, with typically 122mm (4.8") of accumulated precipitation.
What is the average length of the day in May in Boa Entrada?
In Boa Entrada, the average day length in May is 12h and 8min.
When is the sunrise / sunset in May in Boa Entrada?
In May, on the first day of the month, sunrise is at 05:26 and sunset at 17:34. On the last day of the month, in Boa Entrada, sunrise is at 05:26 and sunset at 17:35 GMT.
How many hours of sunshine does Boa Entrada have in May?
The average sunshine duration in May in Boa Entrada is 7.6h.
When is the highest UV index in Boa Entrada?
January through May, October through December, with an average maximum UV index of 7, are months with the highest UV index in Boa Entrada.
How high is the UV index in May in Boa Entrada?
In Boa Entrada, the average daily maximum UV index in May is 7. A UV Index value of 6 to 7 symbolizes a high health threat 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
Boa Entrada, São Tomé and Príncipe
  • Average high temperature in May: 27.8°C

The warmest month (with the highest average high temperature) is March (28.8°C).
The month with the lowest average high temperature is July (24.5°C).

  • Average low temperature in May: 26.3°C

The month with the highest average low temperature is March (27.5°C).
The coldest month (with the lowest average low temperature) is July (23°C).

Average pressure in May
Boa Entrada, São Tomé and Príncipe
  • Average pressure in May: 1011.3mbar

The month with the highest atmospheric pressure is July (1014.3mbar).
The month with the lowest atmospheric pressure is February (1009.8mbar).

Average wind speed in May
Boa Entrada, São Tomé and Príncipe
  • Average wind speed in May: 13km/h

The windiest month (with the highest average wind speed) is July (17.7km/h).
The calmest month (with the lowest average wind speed) is December (10.8km/h).

Average humidity in May
Boa Entrada, São Tomé and Príncipe
  • Average humidity in May: 79%

The months with the highest relative humidity are August, September and October (83%).
The month with the lowest relative humidity is March (76%).

Average rainfall in May
Boa Entrada, São Tomé and Príncipe
  • Average rainfall in May: 122mm

The wettest month (with the highest rainfall) is November (224mm).
The driest month (with the least rainfall) is July (9mm).

Average rainfall days in May
Boa Entrada, São Tomé and Príncipe
  • Average rainfall days in May: 20.5 days

The month with the highest number of rainy days is December (28.6 days).
The month with the least rainy days is June (7.3 days).

Average daylight in May /
Average sunshine in May
Boa Entrada, São Tomé and Príncipe
  • Average daylight in May: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 6min).
The month with the shortest days is December (Average daylight: 12h and 6min).

  • Average sunshine in May: 7h and 4min

The month with the most sunshine is February (Average sunshine: 8h and 36min).
The month with the least sunshine is August (Average sunshine: 5h and 0min).

Average sunshine days in May
Boa Entrada, São Tomé and Príncipe
  • Average sunshine days in May: 9.2 days

The month with the most sunshine days is June (16.4 days).
The month with the least sunshine days is December (1.5 days).

Average UV index in May
Boa Entrada, São Tomé and Príncipe
  • Average UV index in May: 7

The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 5).

Average cloud cover in May
Boa Entrada, São Tomé and Príncipe
  • Average cloud cover in May: 44

The month with the most cloud cover is August (Cloud cover 65).
The month with the least cloud cover is February (Cloud cover 37).

Average visibility in May
Boa Entrada, São Tomé and Príncipe
  • Average visibility in May: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September and December (10km).
The months with the lowest visibility are October and November (9km).

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