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
Ribeira Afonso sees the arrival of May with an average high-temperature of a still warm 27.8°C (82°F), indicating a subtle variation from April. May witnesses a minor deviation from daytime peaks, with an average nighttime temperature of 26.3°C (79.3°F).Heat index
During May, the heat index is computed to be a tropical 31°C (87.8°F). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.The metrics for the heat index are tailored for both shady environments and light winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Humidity
The average relative humidity in May is 79%.Rainfall
In Ribeira Afonso, São Tomé and Príncipe, in May, it is raining for 20.5 days, with typically 122mm (4.8") of accumulated precipitation. In Ribeira Afonso, São Tomé and Príncipe, during the entire year, the rain falls for 241.7 days and collects up to 1287mm (50.67") of precipitation.Daylight
In Ribeira Afonso, São Tomé and Príncipe, the average length of the day in May is 12h and 8min.On the first day of May in Ribeira Afonso, São Tomé and Príncipe, sunrise is at 05:26 and sunset at 17:33. On the last day of the month, sunrise is at 05:27 and sunset at 17:34 GMT.
Sunshine
In Ribeira Afonso, São Tomé and Príncipe, the average sunshine in May is 7.6h.UV index
The months with the highest UV index are January through May, October through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In May, the maximum UV index of 7 suggests this advice:
Shun overexposure. Protection from sun ravages is indispensable. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Frequently asked questions
What is the usual temperature for Ribeira Afonso in May?
What is the average humidity in May in Ribeira Afonso?
How much does it rain in Ribeira Afonso in May?
How many hours of daylight does Ribeira Afonso have in May?
When are sunrise and sunset in May in Ribeira Afonso?
How many hours of sunshine does Ribeira Afonso have in May?
When is the highest UV index in Ribeira Afonso?
What is the UV index intensity in May in Ribeira Afonso?
Average temperature in May
Ribeira Afonso, 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
Ribeira Afonso, 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
Ribeira Afonso, 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
Ribeira Afonso, 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
Ribeira Afonso, 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
Ribeira Afonso, 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
Ribeira Afonso, 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 February and October (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
Ribeira Afonso, 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
Ribeira Afonso, 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
Ribeira Afonso, 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
Ribeira Afonso, 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).
Ribeira Afonso, São Tomé and Príncipe
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