St. Thomas
May
Weather in St. Thomas for May 2026
Your guide to St. Thomas weather in May - trends and predictions
In general, the average temperature in St. Thomas at the beginning of May is 17.1 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 20 °C by the end of May.
St. Thomas experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 204.8 mm.
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Temperatures
Rain 🌧️
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10
Dry days
21
Rainy days
0
Snow days
18°/8°
Temperatures
21 km/h
Avg max wind
75 %
Avg humidity
St. Thomas Weather May
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Temperatures trend during May in St. Thomas
See the weather trend as well as the moving average line
May weather in St. Thomas day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Light drizzle | 18° /7° | 27.4 mm | 5 | |
| 2 May |  Patchy rain possible | 15° /6° | 0 mm | 4 | |
| 3 May | Light rain shower | 17° /8° | 2.4 mm | 4 | |
| 4 May | Patchy rain possible | 17° /9° | 11.2 mm | 4 | |
| 5 May | Light rain shower | 17° /10° | 0.3 mm | 4 | |
| 6 May |  Partly cloudy | 17° /8° | 10.1 mm | 4 | |
| 7 May | Patchy rain possible | 19° /6° | 1.5 mm | 5 | |
| 8 May |  Overcast | 17° /8° | 0.6 mm | 4 | |
| 9 May | Light rain shower | 15° /3° | 3.2 mm | 4 | |
| 10 May | Light rain shower | 17° /5° | 1.2 mm | 4 | |
| 11 May | Light rain shower | 15° /4° | 3.8 mm | 4 | |
| 12 May | Patchy rain possible | 21° /5° | 0.4 mm | 5 | |
| 13 May |  Patchy light rain with thunder | 20° /12° | 11 mm | 5 | |
| 14 May | Light rain shower | 19° /13° | 7.8 mm | 5 | |
| 15 May | Patchy rain possible | 23° /12° | 0 mm | 6 | |
| 16 May | Patchy rain possible | 24° /13° | 43 mm | 6 | |
| 17 May | Patchy rain possible | 20° /11° | 5.5 mm | 5 | |
| 18 May |  Mist | 17° /9° | 1 mm | 4 | |
| 19 May | Patchy rain possible | 20° /7° | 0 mm | 5 | |
| 20 May |  Moderate rain at times | 14° /4° | 6.3 mm | 4 | |
| 21 May |  Sunny | 16° /7° | 29.8 mm | 4 | |
| 22 May | Partly cloudy | 19° /11° | 14.3 mm | 5 | |
| 23 May |  Cloudy | 18° /8° | 3.4 mm | 4 | |
| 24 May | Cloudy | 17° /8° | 0 mm | 4 | |
| 25 May | Sunny | 18° /6° | 1.8 mm | 4 | |
| 26 May | Sunny | 21° /6° | 0.9 mm | 5 | |
| 27 May | Sunny | 21° /9° | 1.5 mm | 5 | |
| 28 May | Sunny | 19° /10° | 0.8 mm | 4 | |
| 29 May | Sunny | 20° /9° | 13.4 mm | 5 | |
| 30 May | Sunny | 21° /10° | 0 mm | 5 | |
| 31 May | Sunny | 20° /9° | 2.1 mm | 5 | |
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Important Notice
Our weather forecast for St. Thomas in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the St. Thomas forecast closer to your planned date for the most up-to-date weather information.
Change Month
St. Thomas in May - FAQ
What are the expected maximum and minimum temperatures in St. Thomas during May?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in St. Thomas during May?
Significant rainfall exceeding 204.8 mm is expected in St. Thomas during May, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in St. Thomas during May?
The average wind speed in St. Thomas during May is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in St. Thomas
Explore the daily rainfall trends and prepare for St. Thomass May weather 💧
UV exposure in St. Thomas during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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