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When is the best time to visit St Thomas Island?
In general the best time to visit St Thomas Island is probably October, when the weather is usually great. The hottest months are August, September, October, while the coldest months are January, February, March.
But ultimately the best time to visit depends on what you want to do:
- The best time for a sunbathing holiday is August, September, October. Average maximum temperatures are up to +28°C in October and it has 3 sunny days on average.
- In general, it’s pleasant to walk and do outdoor activities during January - December.
- If you want to avoid wet weather, then your choice is August, September, October with the lowest chance of rain.
Average weather in St Thomas Island in different months
This is the average weather in St Thomas Island for each month based on historic data:
January, February, March usually has good weather. Average maximum temperature reaches +25°C during January.
In April, May, June, July, August, September, October, November, December the weather is average. Expect around 222 rainy days, and the precipitation amounts to approximately 153 mm in September.
Climate in St Thomas Island
Here is the detailed breakdown of the climate in St Thomas Island for each month:
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum Temperature | |||||||||||
| +30°C | +29°C | +29°C | +30°C | +31°C | +32°C | +32°C | +33°C | +32°C | +32°C | +30°C | +30°C |
| Average Maximum Temperature | |||||||||||
| +25°C | +25°C | +25°C | +26°C | +27°C | +27°C | +28°C | +28°C | +28°C | +28°C | +27°C | +26°C |
| Minimum Temperature | |||||||||||
| +21°C | +21°C | +18°C | +21°C | +21°C | +24°C | +24°C | +23°C | +24°C | +23°C | +22°C | +20°C |
| Avg. water temperature | |||||||||||
| - | - | - | - | - | - | - | - | - | - | - | - |
| Humidity, % | |||||||||||
| 78 | 78 | 77 | 79 | 82 | 82 | 82 | 82 | 82 | 82 | 81 | 79 |
| Rain, mm | |||||||||||
| 40 | 33 | 32 | 51 | 101 | 74 | 95 | 113 | 153 | 151 | 139 | 61 |
| Snow, mm | |||||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Average wind speed, m/s | |||||||||||
| 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 5 |
| Sunny Days | |||||||||||
| 6 | 5 | 7 | 6 | 3 | 2 | 2 | 2 | 2 | 3 | 3 | 5 |
| Cloud Days | |||||||||||
| 3 | 4 | 5 | 4 | 4 | 5 | 2 | 2 | 2 | 2 | 2 | 3 |
| Rainy Days | |||||||||||
| 23 | 19 | 19 | 20 | 24 | 23 | 27 | 27 | 26 | 27 | 25 | 23 |
| Snowy Days | |||||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Average Temperature
Here are the average maximum and minimum temperatures in St Thomas Island during the whole year:
The hottest month in St Thomas Island is October with average maximum temperature going up to +28°C. The coldest month is January with the lowest temperatures of +24°C.
Humidity
The temperature feels different depending on humidity. Here is how humidity in St Thomas Island looks throughout the year, in %:
The most humid month in St Thomas Island is October with average humidity going up to 82%. The least humid month is March with an average humidity of 77%.
Rain
Amount of rainfall in mm. in St Thomas Island during the whole year based on historical data:
The sunniest and driest month is March with approximately 7 sunny days and a total precipitation of around 32 mm. The rainiest and wettest month is September with approximately 26 rainy days and 153 mm of total precipitation.
FAQ
Frequently asked questions about the weather in St Thomas Island:
What is the hottest month in St Thomas Island?
The hottest month in St Thomas Island is October with average maximum temperature of +28°C.
What is the coldest month in St Thomas Island?
The coldest month in St Thomas Island is January with minimum temperatures of +24°C.
Is St Thomas Island worth visiting in winter?
If you are planning to visit St Thomas Island in winter you can expect pretty good weather. The best month is October with +28°C and 3 sunny days.
When does it rain the least in St Thomas Island?
if you're looking to visit St Thomas Island when it rains the least, you should plan your trip for September, October, November. During this time, rainfall is rare with the driest month being March with only 32 mm of rain.
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.
