Weather in St Thomas Island in July 2025
Average weather
Average temperature in St Thomas Island in July
The temperature in July is +82°F on average, with a range between a maximum of +84°F during the day and a minimum of +79°F at night.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +82°F to +82°F.
Is St Thomas Island warm or cold in July?
St Thomas Island is typically warm in July.
Maximum temperatures go up compared to the previous month from +81°F to +82°F. The minimum temperature also goes up from +79°F to +79°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how July is compared to other months in St Thomas Island:
Climate in St Thomas Island in July
| June | July | August | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +81°F | +82°F | +82°F | ||||
| Min. temperature | ||||||
| +75°F | +75°F | +73°F | ||||
| Max. temperature | ||||||
| +90°F | +90°F | +91°F | ||||
| Rainfall | ||||||
| 74 mm | 95 mm | 113 mm | ||||
| Wind | ||||||
| 5 m/s | 5 m/s | 5 m/s | ||||
| Humidity | ||||||
| 82% | 82% | 82% | ||||
| Air pressure | ||||||
| 1015 HPa | 1016 HPa | 1014 HPa | ||||
| Sunny days | ||||||
| 2 | 2 | 2 | ||||
| Cloudy days | ||||||
| 5 | 2 | 2 | ||||
| Rainy days | ||||||
| 23 | 27 | 27 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
July weather is still as ok as in June. It’s getting warmer as July arrives. The average maximum temperature goes up from +81°F to +82°F during the day. Prepare for more rain. Average rainfall goes from 74 mm to 95 mm. Humidity levels don’t change as the month goes on, averaging around 82%. The average wind speed doesn’t change much during July, staying around 5 m/s. The amount of sunny days stay about the same, averaging 2 sunny days during the month.
August 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 July, going from 4 m/s to 4 m/s over the course of the month.
Rain
How was the weather last July in St Thomas Island?
Climate Change Over the Years
The climate in St Thomas Island in July 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 July a good time to visit St Thomas Island?
Can you sunbathe in St Thomas Island in July?
Is St Thomas Island rainy in July?
Is it sunny in St Thomas Island in July?
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.