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
Transitioning from April to May, Longwood observes an average high-temperature of a still moderately hot 23.2°C (73.8°F), differing subtly from the previous month. Maintaining close parity with daytime warmth, the average nocturnal temperature during May stays at an agreeable 22.1°C (71.8°F).Humidity
The average relative humidity in May is 76%.Rainfall
May, September through November are months with the least rain when the rain falls for 10.5 days and typically aggregates up to 6mm (0.24") of rain.Daylight
The average length of the day in May is 11h and 22min.On the first day of May in Longwood, sunrise is at 06:34 and sunset at 18:05. On the last day of the month, sunrise is at 06:43 and sunset at 17:57 GMT.
Sunshine
In Longwood, the average sunshine in May is 5.7h.UV index
The months with the highest UV index in Longwood are January through March and May, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: During May, 6 as the daily maximum UV index converts into the following advice:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Frequently asked questions
What is the usual temperature for Longwood in May?
What is the average humidity in May in Longwood?
What is the driest month in Longwood?
How much does it rain in Longwood in May?
How many hours of daylight does Longwood have in May?
What time are sunrise and sunset in May in Longwood?
How long on average sun shines in May in Longwood?
When is the highest UV index in Longwood?
What is the UV index reading in May in Longwood?
Average temperature in May
Longwood, Saint Helena, Ascension and Tristan da Cunha
- Average high temperature in May: 23.2°C
The warmest month (with the highest average high temperature) is March (24.7°C).
The month with the lowest average high temperature is September (19.7°C).
- Average low temperature in May: 22.1°C
The month with the highest average low temperature is March (23.5°C).
The coldest months (with the lowest average low temperature) are September and October (18.7°C).
Average pressure in May
Longwood, Saint Helena, Ascension and Tristan da Cunha
- Average pressure in May: 1016.6mbar
The months with the highest atmospheric pressure are July and August (1019.8mbar).
The month with the lowest atmospheric pressure is February (1014.1mbar).
Average wind speed in May
Longwood, Saint Helena, Ascension and Tristan da Cunha
- Average wind speed in May: 23.8km/h
The windiest month (with the highest average wind speed) is September (28.4km/h).
The calmest month (with the lowest average wind speed) is January (21.8km/h).
Average humidity in May
Longwood, Saint Helena, Ascension and Tristan da Cunha
- Average humidity in May: 76%
The month with the highest relative humidity is October (82%).
The months with the lowest relative humidity are June and July (74%).
Average rainfall in May
Longwood, Saint Helena, Ascension and Tristan da Cunha
- Average rainfall in May: 6mm
The wettest month (with the highest rainfall) is June (11mm).
The driest months (with the least rainfall) are May, September, October and November (6mm).
Average rainfall days in May
Longwood, Saint Helena, Ascension and Tristan da Cunha
- Average rainfall days in May: 10.5 days
The month with the highest number of rainy days is June (13.6 days).
The month with the least rainy days is November (8.5 days).
Average daylight in May /
Average sunshine in May
Longwood, Saint Helena, Ascension and Tristan da Cunha
- Average daylight in May: 11h and 2min
The month with the longest days is December (Average daylight: 13h and 6min).
The month with the shortest days is June (Average daylight: 11h and 12min).
- Average sunshine in May: 5h and 4min
The month with the most sunshine is February (Average sunshine: 7h and 30min).
The month with the least sunshine is September (Average sunshine: 4h and 0min).
Average sunshine days in May
Longwood, Saint Helena, Ascension and Tristan da Cunha
- Average sunshine days in May: 13.2 days
The month with the most sunshine days is May (13.2 days).
The month with the least sunshine days is February (7.2 days).
Average UV index in May
Longwood, Saint Helena, Ascension and Tristan da Cunha
- Average UV index in May: 6
The months with the highest UV index are January, February, March and May (UV index 6).
The months with the lowest UV index are August, September and October (UV index 4).
Average cloud cover in May
Longwood, Saint Helena, Ascension and Tristan da Cunha
- Average cloud cover in May: 51
The month with the most cloud cover is September (Cloud cover 74).
The month with the least cloud cover is February (Cloud cover 44).
Average visibility in May
Longwood, Saint Helena, Ascension and Tristan da Cunha
- Average visibility in May: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Longwood, Saint Helena, Ascension and Tristan da Cunha
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