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
May
Weather in May
Temperature
The onset of May brings with it an average high-temperature of a still moderately hot 27.8°C (82°F), showing a negligible variation from the month before. Throughout May, a minimal difference from peak daytime temperatures is noted, marking a steady low-temperature average of 26.3°C (79.3°F).Heat index
May's mean heat index is evaluated at a hot 31°C (87.8°F). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
In May, the average relative humidity is 79%.Rainfall
In Santa Clara, in May, during 20.5 rainfall days, 122mm (4.8") of precipitation is typically accumulated. Throughout the year, in Santa Clara, there are 241.7 rainfall days, and 1287mm (50.67") of precipitation is accumulated.Daylight
In Santa Clara, the average length of the day in May is 12h and 8min.On the first day of the month, sunrise is at 05:26 and sunset at 17:34. On the last day of May, sunrise is at 05:27 and sunset at 17:35 GMT.
Sunshine
In Santa Clara, São Tomé and Príncipe, the average sunshine in May is 7.6h.UV index
The months with the highest UV index in Santa Clara are January through May, October through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 7 in May translates into these instructions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Santa Clara?
What is the average humidity in May in Santa Clara?
How much does it rain in Santa Clara in May?
How many hours of daylight does Santa Clara have in May?
What time are sunrise and sunset in May in Santa Clara?
How long on average sun shines in May in Santa Clara?
What is the month with the highest UV index in Santa Clara?
What is the UV index intensity in May in Santa Clara?
Average temperature in May
Santa Clara, 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
Santa Clara, 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
Santa Clara, 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
Santa Clara, 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
Santa Clara, 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
Santa Clara, 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
Santa Clara, 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
Santa Clara, 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
Santa Clara, 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
Santa Clara, 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
Santa Clara, 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).
