Temperatures in May
It's pleasantly warm in May in Saint Helena, Ascension and Tristan da Cunha with an average temperature of 22°C. Temperatures this month range from a low of 21°C to a high of 23°C. At night, you can expect temperatures between 18°C and 19°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Saint Helena, Ascension and Tristan da Cunha in May. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of May
The month of May starts in Saint Helena, Ascension and Tristan da Cunha with warm temperatures, averaging around 23°C during the day and nights close to 19°C. There’s little chance of precipitation. The weather is mostly sunny and dry.
Mid-May
By mid-May, the average daytime temperature stays the same at 23°C, with nights close to 19°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of May
By the end of May, the average daytime temperature in Saint Helena, Ascension and Tristan da Cunha will be around 22°C, with nights close to 18°C. A shower might show up, but overall the weather will be dry and sunny.
Precipitation in May
In May, there is an average of 30 mm of precipitation, spread over 8 days. The wind speed is around 5 Bft, mostly coming from the Southeast.
The average precipitation chance is 25% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in May for Saint Helena, Ascension and Tristan da Cunha. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Saint Helena, Ascension and Tristan da Cunha in May |
UK | ||
|---|---|---|---|
 Average Temperature |
22°C | 18°C | |
 High Temp |
23°C | 21°C | |
| Low Temp |
21°C | 15°C | |
 Total Precipitation |
30 mm | 46 mm | |
| Rainy Days |
8 days | 8 days | |
April
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is May a good time to visit Saint Helena, Ascension and Tristan da Cunha?
Want nice weather? Then May is a great time to be in Saint Helena, Ascension and Tristan da Cunha. You’ll have pleasant temperatures and not too much rain this month.
Temperature records for Saint Helena, Ascension and Tristan da Cunha in May
With 26°C, Saint Helena, Ascension and Tristan da Cunha hit the highest temperature in the last 10 years in May 2020. The lowest daytime temperature in this month was 18°C in 2022. The extreme night temperatures ranged from a low of 14°C to a high of 20°C.
You can check out all destinations in Saint Helena, Ascension and Tristan da Cunha for a full picture of the climate.
Daily Temperature in May in Saint Helena, Ascension and Tristan da Cunha
This chart shows the average daily temperatures, both day and night, for each day in May in Saint Helena, Ascension and Tristan da Cunha, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Weather experiences in May in Saint Helena, Ascension and Tristan da Cunha
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There is a refreshing cool breeze and frequent sunshine with... more
Daily Precipitation in May in Saint Helena, Ascension and Tristan da Cunha
The chart below shows the average daily precipitation in May for Saint Helena, Ascension and Tristan da Cunha, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for May, you can expect around 8 days of rain in Saint Helena, Ascension and Tristan da Cunha.
Daily UV Index in May in Saint Helena, Ascension and Tristan da Cunha
This chart shows the average daily UV index in May in Saint Helena, Ascension and Tristan da Cunha, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in May in Saint Helena, Ascension and Tristan da Cunha Over the Years
This chart shows the average temperature in May in Saint Helena, Ascension and Tristan da Cunha, measured in degrees Celsius, over the past years.
Total Precipitation in May in Saint Helena, Ascension and Tristan da Cunha Over the Years
This chart shows the average precipitation in May in Saint Helena, Ascension and Tristan da Cunha, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in May for Saint Helena, Ascension and Tristan da Cunha
Click on a specific day in May for detailed info on the typical weather on that day in Saint Helena, Ascension and Tristan da Cunha. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in Saint Helena, Ascension and Tristan da Cunha
The weather in May in Saint Helena, Ascension and Tristan da Cunha is rated 4 out of 5 stars by 1 visitor. Have you been to Saint Helena, Ascension and Tristan da Cunha? Share your weather experience to help other visitors.
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There is a refreshing cool breeze and frequent sunshine with moderate temperatures. However, there can be occasional showers, so it is advisable to always carry an umbrella!— This text is automatically translated to English
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Average Weather in Saint Helena, Ascension and Tristan da Cunha by Month
Click on a month below to see detailed weather info for Saint Helena, Ascension and Tristan da Cunha. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Saint Helena, Ascension and Tristan da Cunha for all months at once
