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Weather in St. Thomas for August 2025

Your guide to St. Thomas weather in August - trends and predictions
  • In general, the average temperature in St. Thomas at the beginning of August is 25.6 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 26.6 °C by the end of August.

  • The climate of St. Thomas in August is notably wet, with an average of 15 rainy days.

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Average dry days
16
Dry days
Average rainy days
15
Rainy days
Average snowy days
0
Snow days
Average temperatures
25°/13°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
75 %
Avg humidity

St. Thomas in August average weather

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Temperatures trend during August in St. Thomas

See the weather trend as well as the moving average line

August weather day by day

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Date Weather Temperatures Rain UV More
1 Aug. Patchy rain possible
Patchy rain possible
26° /16° 1.1 mm 6
2 Aug. Moderate or heavy rain shower
Moderate or heavy rain shower
27° /17° 6.2 mm 6
3 Aug. Overcast
Overcast
28° /17° 0.9 mm 6
4 Aug. Patchy rain possible
Patchy rain possible
27° /16° 0.2 mm 7
5 Aug. Patchy rain possible
Patchy rain possible
25° /16° 0.1 mm 6
6 Aug. Moderate or heavy rain shower
Moderate or heavy rain shower
23° /14° 4.5 mm 5
7 Aug. Patchy rain possible
Patchy rain possible
23° /13° 2.5 mm 6
8 Aug. Overcast
Overcast
25° /14° 0.5 mm 6
9 Aug. Patchy rain possible
Patchy rain possible
25° /14° 0.5 mm 6
10 Aug. Heavy rain at times
Heavy rain at times
21° /13° 2.2 mm 5
11 Aug. Overcast
Overcast
23° /11° 0.6 mm 6
12 Aug. Moderate or heavy rain shower
Moderate or heavy rain shower
24° /14° 7.4 mm 6
13 Aug. Cloudy
Cloudy
25° /13° 0.2 mm 6
14 Aug. Overcast
Overcast
25° /13° 0.8 mm 6
15 Aug. Moderate or heavy rain shower
Moderate or heavy rain shower
23° /15° 13.5 mm 5
16 Aug. Overcast
Overcast
26° /15° 1.8 mm 6
17 Aug. Patchy rain possible
Patchy rain possible
24° /16° 11 mm 5
18 Aug. Patchy rain possible
Patchy rain possible
20° /14° 2.9 mm 5
19 Aug. Overcast
Overcast
22° /10° 0.1 mm 5
20 Aug. Cloudy
Cloudy
24° /11° 0 mm 6
21 Aug. Overcast
Overcast
24° /13° 0 mm 6
22 Aug. Overcast
Overcast
23° /11° 0 mm 6
23 Aug. Moderate or heavy rain shower
Moderate or heavy rain shower
23° /13° 26.7 mm 6
24 Aug. Patchy rain possible
Patchy rain possible
28° /15° 12.4 mm 7
25 Aug. Mist
Mist
29° /15° 0.4 mm 7
26 Aug. Mist
Mist
27° /12° 0 mm 6
27 Aug. Cloudy
Cloudy
28° /15° 0 mm 6
28 Aug. Sunny
Sunny
27° /13° 1.4 mm 7
29 Aug. Mist
Mist
26° /12° 0.1 mm 7
30 Aug. Overcast
Overcast
26° /10° 0.6 mm 6
31 Aug. Partly cloudy
Partly cloudy
23° /11° 2 mm 6
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Important Notice
Our weather forecast for St. Thomas in August 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.

St. Thomas in August - FAQ

What are the expected maximum and minimum temperatures in St. Thomas during August?
Enjoy moderate daytime temperatures of up to 25° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in St. Thomas during August?
Significant rainfall exceeding 153.2 mm is expected in St. Thomas during August, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in St. Thomas during August?
The average wind speed in St. Thomas during August is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in St. Thomas

Explore the daily rainfall trends and prepare for St. Thomass August weather 💧

UV exposure in St. Thomas during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️

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Location coordinates Where is St. Thomas?

Get accurate weather forecasts for St. Thomas, located at latitude 42.774 and longitude -81.18. Stay updated with localized weather information tailored for St. Thomas.

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