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 in Lemba, São Tomé and Príncipe, records an average high-temperature of a still moderately hot 27.8°C (82°F), closely related to the 28.6°C (83.5°F) observed in April. Lemba maintains a minor drop in temperature during May nights, with averages of 26.3°C (79.3°F).Heat index
Throughout May, the heat index is calculated to be a hot 31°C (87.8°F). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.Consider that heat index readings are for situations in the shade and light wind. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'feels like' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
In Lemba, the average relative humidity in May is 79%.Rainfall
In Lemba, 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
The average length of the day in May is 12h and 8min.On the first day of the month, sunrise is at 05:27 and sunset at 17:34. On the last day of May, sunrise is at 05:27 and sunset at 17:35 GMT.
Sunshine
In Lemba, the average sunshine in May is 7.6h.UV index
The months with the highest UV index in Lemba are January through May, October through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In May, the maximum UV index of 7 suggests these recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Frequently asked questions
What is the average May temperature in Lemba?
What is the average humidity in May in Lemba?
How much does it rain in Lemba in May?
What is the average length of the day in May in Lemba?
What time are sunrise and sunset in May in Lemba?
How long on average sun shines in May in Lemba?
What is the month with the highest UV index in Lemba?
What is the UV index reading in May in Lemba?
Average temperature in May
Lemba, 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
Lemba, 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
Lemba, 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
Lemba, 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
Lemba, 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
Lemba, 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
Lemba, 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 November (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
Lemba, 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
Lemba, 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
Lemba, 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
Lemba, 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).
Lemba, São Tomé and Príncipe
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