Average weather for Saint Helena, Ascension and Tristan da Cunha 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.
Start of May
The month of May starts in Saint Helena, Ascension and Tristan da Cunha with warm temps, averaging around 23°C during the day and nights around 19°C. There’s little chance of precipitation. The weather’s mostly sunny and dry.
Mid May
By mid-May, daytime temps stay steady at around 23°C, with nights around 19°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of May
By the end of May, the average daytime temperature in Saint Helena, Ascension and Tristan da Cunha is around 22°C, while nighttime temps are about 18°C. A shower might pop up, but overall, the weather will be dry and sunny.
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.
Saint Helena, Ascension and Tristan da Cunha in May |
New York | ||
|---|---|---|---|
 Average temperature |
22°C | 22°C | |
 Max. temperature |
23°C | 28°C | |
| Min. temperature |
21°C | -5°C | |
 Total precipitation |
30 mm | 105 mm | |
| Rainy days |
8 days | 14 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?
Looking for great weather? May is a good time to be in Saint Helena, Ascension and Tristan da Cunha. The temperatures are nice, and there’s not too much rain.
Temperature records
With 26°C in 2020, Saint Helena, Ascension and Tristan da Cunha reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 18°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 14°C to a highest value of 20°C.
Daily Temperature in May in Saint Helena, Ascension and Tristan da Cunha
This chart shows the average daily high and low temperatures in May for Saint Helena, Ascension and Tristan da Cunha, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for 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 millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed 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 it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for May, you can expect about 8 days of precipitation 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 few 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 millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in May for Saint Helena, Ascension and Tristan da Cunha
Click on any day in May to get detailed info about the usual 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.
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