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St Thomas Island in April: Weather, Average temperature and Climate

Take a look at past year’s weather for St Thomas Island in April and see if it is worth visiting.
Check flight prices to St Thomas Island on Avionero:
April

Weather in St Thomas Island in April 2025

OK Weather
Warm
🌧️
Rainy
St Thomas Island in April usually sees fair weather conditions, with an average daily high temperature of +79°F and roughly 6 sunny days. However, you should prepare for about 20 rainy days with an average precipitation of 51 mm. The weather is changeable so pack for every eventuality. Search flights in one click on Avionero.

Average weather

☀️
+79°F
Avg. max. temperature
+70°F
Min.
+86°F
Max.
51 mm
Total precipitation
79%
Avg. humidity
5 m/s
Avg. wind
6 ☀️
Sunny Days
4 ⛅️
Cloudy
20 🌦
Rainy
Our opinion: St Thomas Island has OK weather in April.

Average temperature in St Thomas Island in April

Here are the expected maximum, average and minimum temperatures in St Thomas Island for April based on the historical data.
Last Year
Historical Data

The temperature in April is +79°F on average, with a range between a maximum of +81°F during the day and a minimum of +72°F at night.

The average maximum temperature goes up 20% by the end of the month, compared with the beginning of the month, from +79°F to +81°F.

Is St Thomas Island warm or cold in April?

St Thomas Island is typically warm in April.

Maximum temperatures go up compared to the previous month from +77°F to +79°F. The minimum temperature also goes up from +75°F to +75°F.

It’s generally warm, but pack a long-sleeve shirt for evenings.

Take a look at how April is compared to other months in St Thomas Island:

Climate in St Thomas Island in April

St Thomas Island weather looks like this, on average, in April and the surrounding months.
MarchAprilMay
Avg. temperature
+77°F+79°F+81°F
Min. temperature
+64°F+70°F+70°F
Max. temperature
+84°F+86°F+88°F
Rainfall
32 mm51 mm101 mm
Wind
5 m/s5 m/s5 m/s
Humidity
77%79%82%
Air pressure
1015 HPa1014 HPa1014 HPa
Sunny days
763
Cloudy days
544
Rainy days
192024
Snowy days
000

April typically has worse weather conditions compared to March. It’s getting warmer as April arrives. The average maximum temperature goes up from +77°F to +79°F during the day. Prepare for more rain. Average rainfall goes from 32 mm to 51 mm. Humidity rises from 77% to 79%. The average wind speed doesn’t change much during April, staying around 5 m/s. The days becoming less sunny, going from 7 sunny days in March to 6 in April.

May brings much the same weather, it remains ok.

Wind

Wind speed in St Thomas Island in April based on historical data.
Last Year
Historical Data

The average wind speed is 4 m/s getting up to 8 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 decreasing during April, going from 8 m/s to 4 m/s over the course of the month.

Rain

Amount of rainfall in mm during April in St Thomas Island based on historical data.
Last Year
Historical Data
A chance of rain on a typical day in April stands at 47%, leading to total precipitation of around 80 mm. The maximum amount of rainfall per day is around 25 mm, which is moderate rain. April is a pretty wet month with over 14 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how April is compared with other months in the amount of precipitation, total mm:
St Thomas Island wettest month is September, where a typical day has a 87% chance of precipitation and 153 mm of rainfall per day. March, on the other hand, is the driest month with a mere 61% chance of precipitation and 32 mm of rainfall per day.

How was the weather last April in St Thomas Island?

This is the weather in St Thomas Island in April 2023:
1 April
☀️
+78°F
2 April
☀️
+78°F
3 April
☀️
+79°F
4 April
☀️
+78°F
5 April
🌧️
+77°F
6 April
🌧️
+76°F
7 April
🌧️
+78°F
8 April
🌧️
+77°F
9 April
☀️
+78°F
10 April
☀️
+78°F
11 April
☀️
+79°F
12 April
☀️
+78°F
13 April
☀️
+78°F
14 April
☀️
+78°F
15 April
☀️
+78°F
16 April
🌧️
+78°F
17 April
☀️
+78°F
18 April
☀️
+79°F
19 April
☀️
+79°F
20 April
☀️
+78°F
21 April
☀️
+78°F
22 April
☀️
+78°F
23 April
🌧️
+79°F
24 April
☁️
+78°F
25 April
☁️
+78°F
26 April
☀️
+79°F
27 April
☁️
+80°F
28 April
☀️
+80°F
29 April
☀️
+80°F
30 April
☀️
+80°F
In April 2023 St Thomas Island had 21 sunny days, 3 cloudy days, and 6 rainy days. The average maximum temperature was +79°F, with an absolute maximum of +81°F and a minimum of +77°F. The average humidity was 79%, with a maximum of 100% and a minimum of 68%. The average wind speed was 4 m/s, with a maximum of 10 m/s and a minimum of 1 m/s.
Are you planning a trip in April?

Climate Change Over the Years

This is how St Thomas Island climate has changed over the last 43 years.

The climate in St Thomas Island in April 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

Frequently asked questions about the weather in St Thomas Island in April:

Is April a good time to visit St Thomas Island?

It’s always a good time to visit St Thomas Island, but the weather is changeable in April, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in St Thomas Island in April?

April is warm in St Thomas Island. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.

Is St Thomas Island rainy in April?

St Thomas Island is often rainy in April. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in St Thomas Island in April?

Usually, it’s not very sunny in St Thomas Island in April, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

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.