Weather in St Thomas Island in May 2025
Average weather
Average temperature in St Thomas Island in May
The temperature in May is +81°F on average, with a range between a maximum of +82°F during the day and a minimum of +77°F at night.
The average maximum temperature goes up 33% by the end of the month, compared with the beginning of the month, from +81°F to +82°F.
Is St Thomas Island warm or cold in May?
St Thomas Island is typically warm in May.
Maximum temperatures go up compared to the previous month from +79°F to +81°F. The minimum temperature also goes up from +75°F to +77°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how May is compared to other months in St Thomas Island:
Climate in St Thomas Island in May
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +79°F | +81°F | +81°F | ||||
| Min. temperature | ||||||
| +70°F | +70°F | +75°F | ||||
| Max. temperature | ||||||
| +86°F | +88°F | +90°F | ||||
| Rainfall | ||||||
| 51 mm | 101 mm | 74 mm | ||||
| Wind | ||||||
| 5 m/s | 5 m/s | 5 m/s | ||||
| Humidity | ||||||
| 79% | 82% | 82% | ||||
| Air pressure | ||||||
| 1014 HPa | 1014 HPa | 1015 HPa | ||||
| Sunny days | ||||||
| 6 | 3 | 2 | ||||
| Cloudy days | ||||||
| 4 | 4 | 5 | ||||
| Rainy days | ||||||
| 20 | 24 | 23 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
May weather is still as ok as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +79°F to +81°F during the day. Prepare for more rain. Average rainfall goes from 51 mm to 101 mm. Humidity rises from 79% to 82%. The average wind speed doesn’t change much during May, staying around 5 m/s. The days becoming less sunny, going from 6 sunny days in April to 3 in May.
June brings much the same weather, it remains ok.
Wind
The average wind speed is 5 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in St Thomas Island is gradually increasing during May, going from 5 m/s to 6 m/s over the course of the month.
Rain
How was the weather last May in St Thomas Island?
Climate Change Over the Years
The climate in St Thomas Island in May has not changed that much over the last 43 years.
The average temperature was the lowest in 1985 (+78°F) and the highest in 2020 (+84°F). The driest year was 2000 with only 546 mm of rainfall, and the wettest year was 2005 with 1557 mm.
FAQ
Is May a good time to visit St Thomas Island?
Can you sunbathe in St Thomas Island in May?
Is St Thomas Island rainy in May?
Is it sunny in St Thomas Island in May?
Monthly weather in St Thomas Island
Source of the data
For this page, we’ve looked at the typical weather in St Thomas Island, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.