Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
Weather Guide
St Thomas, Virgin Islands (US) Average Monthly Weather
Weather score70Very good annual avg
Best months: March, February, April
Across the year, average daytime temperatures are around 29°C, sunshine averages 8h per day, and rainfall totals about 1262mm. Sea temperatures average 28°C across the year.
Annual weather
Annual averages
Temp
29°C
Rain
1262mm
Annual total
Sun
8h
Sea
28°C
Weather score
70
Very good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 85mm, so some wet days are possible.
Bright
Sunshine averages 8.6h per day, so bright days are a strong part of the month.
Warm sea
Sea temperatures average 28°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare St Thomas, Virgin Islands (US) with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July30°C average high
July is one of St Thomas' warmest months, with daytime heat above the yearly average.
Warmest monthsMay to November
This stretch sets the upper range for average daytime heat.
Rain
July85mm average rain
July sits on the drier side of St Thomas' year, which helps with sightseeing and transfers.
Driest monthsJanuary to April and June to July
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July8.6 hours average sun
July is one of St Thomas' sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsFebruary to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
July28°C average sea
July sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJune to November
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
Weather score
July70 weather score
July sits close to St Thomas' yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJanuary to April and June
These months have the strongest weather score in the monthly averages.
