Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The arrival of May sees a recorded average high-temperature of a still moderately hot 27.8°C (82°F), showing little divergence from the previous month's conditions. A modest nighttime temperature average of 26.3°C (79.3°F) characterizes May in Poiso Alto.Heat index
In May, the heat index is calculated to be a hot 31°C (87.8°F). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.Understand that the heat index values take into account shaded locations and mild winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Humidity
In May, the average relative humidity is 79%.Rainfall
In May, the rain falls for 20.5 days. Throughout May, 122mm (4.8") of precipitation is accumulated. In Poiso Alto, during the entire year, the rain falls for 241.7 days and collects up to 1287mm (50.67") of precipitation.Daylight
In May, the average length of the day in Poiso Alto is 12h and 8min.On the first day of May in Poiso Alto, sunrise is at 05:26 and sunset at 17:34. On the last day of the month, sunrise is at 05:27 and sunset at 17:35 GMT.
Sunshine
The average sunshine in May in Poiso Alto 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 in Poiso Alto. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 7 in May converts into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Frequently asked questions
What is the usual temperature for Poiso Alto in May?
What is the average humidity in May in Poiso Alto?
How much does it rain in Poiso Alto in May?
What is the average length of the day in May in Poiso Alto?
When are sunrise and sunset in May in Poiso Alto?
How many hours of sunshine does Poiso Alto have in May?
When is the highest UV index in Poiso Alto?
How high is the UV index in May in Poiso Alto?
Average temperature in May
Poiso Alto, 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
Poiso Alto, 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
Poiso Alto, 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
Poiso Alto, 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
Poiso Alto, 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
Poiso Alto, 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
Poiso Alto, 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 months with the shortest days are January, November and 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
Poiso Alto, 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
Poiso Alto, 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
Poiso Alto, 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
Poiso Alto, 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).
Poiso Alto, São Tomé and Príncipe
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