June is one of the warmer months of the year in St. Thomas, with average highs near 24.8°C and lows around 13°C (mean 18.9°C). It is a relatively wet time of year, averaging 70 mm of rainfall and 70% relative humidity across the period.
June is one of the warmer months of the year in St. Thomas. Across 45 years of records, the warmest June in St. Thomas was 2005 — when the month averaged 22.3°C — while the coldest were 1982 and 1985 at 15.3°C. Typical June days reach 24.8°C with nights near 13°C. The long-term trend is warming, about 0.6°C per decade.
June is a relatively wet time of year in St. Thomas, averaging 70 mm of rainfall. The wettest June on record was 2000 with 174 mm, while the driest was 2007 at 16 mm.
Relative humidity in St. Thomas during June averages 70%. The most humid June was 2000 at 81%, and the least humid was 1988 at 54%.
June receives about 6.2 kWh/m²/day of solar energy in St. Thomas. The sunniest June was 2020 at 7.3 kWh/m²/day, and the cloudiest were 1989 and 1996 at 5.4.
Average wind speed in St. Thomas during June is 3 m/s. The windiest Junes were 1988 and 1990 at 3.6 m/s, while the calmest were 1983 and 2001 at 2.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 17.6°C | 18.9°C | 19.0°C | 18.9°C | 20.7°C | +3.1°C |
| Avg High | 23.4°C | 24.9°C | 24.7°C | 24.6°C | 26.9°C | +3.5°C |
| Avg Low | 11.8°C | 12.9°C | 13.2°C | 13.1°C | 14.5°C | +2.7°C |
| Avg Rain | 79 mm | 71 mm | 64 mm | 86 mm | 42 mm | -37 mm |
June temperatures in St. Thomas have risen by about 3.7°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 2.6°C (2003) to a record high of 36.4°C (1988).
Rainfall in June is a relatively wet time of year, averaging 70 mm, with a wettest year of 174 mm.
One of the best times to visit St. Thomas
June is one of the best times to visit St. Thomas. Expect days averaging 24.8°C and nights around 13°C (mean 18.9°C) — warmer than St. Thomas's yearly average — with moderate rainfall (70 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 27.2°C | 21.2°C | 15.2°C | 34.8°C | 5.0°C | 42 mm | 65% | 3.2 m/s | 6 |
| 2024 | 26.8°C | 21.0°C | 15.2°C | 33.5°C | 10.1°C | 46 mm | 66% | 3.1 m/s | 6 |
| 2023 | 26.0°C | 19.9°C | 13.8°C | 32.1°C | 8.5°C | 39 mm | 59% | 3.1 m/s | 6 |
| 2022 | 26.4°C | 19.6°C | 12.8°C | 34.1°C | 6.4°C | 30 mm | 59% | 3.2 m/s | 6.7 |
| 2021 | 28.0°C | 22.0°C | 16.1°C | 32.0°C | 9.2°C | 53 mm | 63% | 3.3 m/s | 6.2 |
| 2020 | 27.2°C | 20.5°C | 13.7°C | 32.3°C | 6.2°C | 39 mm | 61% | 2.9 m/s | 7.3 |
| 2019 | 23.2°C | 17.5°C | 11.8°C | 29.3°C | 4.4°C | 67 mm | 74% | 2.9 m/s | 6.2 |
| 2018 | 25.4°C | 19.6°C | 13.8°C | 31.3°C | 8.0°C | 80 mm | 70% | 3.1 m/s | 5.9 |
| 2017 | 24.0°C | 18.8°C | 13.5°C | 29.3°C | 7.4°C | 116 mm | 77% | 3.2 m/s | 6.5 |
| 2016 | 25.9°C | 19.6°C | 13.2°C | 31.8°C | 6.1°C | 32 mm | 63% | 3.2 m/s | 7 |
| 2015 | 23.3°C | 17.6°C | 11.9°C | 27.5°C | 4.3°C | 145 mm | 77% | 2.9 m/s | 5.7 |
| 2014 | 24.5°C | 18.9°C | 13.2°C | 29.6°C | 7.7°C | 100 mm | 75% | 2.8 m/s | 6.4 |
| 2013 | 22.9°C | 17.9°C | 12.9°C | 29.6°C | 5.0°C | 98 mm | 78% | 2.7 m/s | 5.9 |
| 2012 | 26.2°C | 20.0°C | 13.9°C | 32.9°C | 7.7°C | 95 mm | 67% | 3.3 m/s | 6.8 |
| 2011 | 24.6°C | 18.8°C | 12.9°C | 29.6°C | 5.7°C | 57 mm | 72% | 3 m/s | 6.3 |
| 2010 | 25.9°C | 20.1°C | 14.3°C | 29.7°C | 6.7°C | 69 mm | 68% | 3.3 m/s | 6.2 |
| 2009 | 24.7°C | 18.4°C | 12.1°C | 33.3°C | 3.2°C | 44 mm | 66% | 2.7 m/s | 6 |
| 2008 | 25.5°C | 20.1°C | 14.8°C | 31.1°C | 8.4°C | 60 mm | 73% | 3.4 m/s | 5.9 |
| 2007 | 28.0°C | 21.2°C | 14.4°C | 33.8°C | 7.7°C | 16 mm | 55% | 3 m/s | 7.1 |
| 2006 | 25.8°C | 19.8°C | 13.7°C | 32.1°C | 6.9°C | 36 mm | 62% | 3 m/s | 6.4 |
| 2005 🔥 | 28.3°C | 22.3°C | 16.3°C | 34.9°C | 10.2°C | 41 mm | 67% | 2.8 m/s | 6.5 |
| 2004 | 22.5°C | 17.1°C | 11.6°C | 27.6°C | 4.5°C | 56 mm | 75% | 3 m/s | 6.2 |
| 2003 | 23.0°C | 16.9°C | 10.8°C | 31.6°C | 2.6°C | 67 mm | 74% | 3 m/s | 6.1 |
| 2002 | 23.5°C | 18.1°C | 12.7°C | 30.8°C | 4.7°C | 56 mm | 79% | 2.6 m/s | 6.1 |
| 2001 | 23.4°C | 18.2°C | 13.0°C | 29.6°C | 5.6°C | 91 mm | 77% | 2.5 m/s | 6.2 |
| 2000 🌧️ | 22.7°C | 17.7°C | 12.8°C | 27.4°C | 7.2°C | 174 mm | 81% | 3.3 m/s | 5.6 |
| 1999 | 25.7°C | 19.9°C | 14.0°C | 31.8°C | 5.6°C | 84 mm | 66% | 2.7 m/s | 6.5 |
| 1998 | 25.1°C | 19.3°C | 13.5°C | 32.7°C | 4.0°C | 47 mm | 66% | 3.1 m/s | 6 |
| 1997 | 24.3°C | 18.8°C | 13.2°C | 30.2°C | 8.6°C | 70 mm | 73% | 2.8 m/s | 6.2 |
| 1996 | 24.0°C | 18.7°C | 13.3°C | 31.0°C | 5.9°C | 96 mm | 77% | 2.8 m/s | 5.4 |
| 1995 | 26.8°C | 20.6°C | 14.4°C | 34.7°C | 6.7°C | 56 mm | 66% | 2.6 m/s | 6.1 |
| 1994 | 26.1°C | 19.6°C | 13.1°C | 35.0°C | 4.0°C | 92 mm | 66% | 2.9 m/s | 6 |
| 1993 | 23.2°C | 17.3°C | 11.3°C | 28.7°C | 4.3°C | 91 mm | 73% | 3.1 m/s | 5.8 |
| 1992 | 23.2°C | 16.8°C | 10.4°C | 29.8°C | 3.5°C | 52 mm | 63% | 2.8 m/s | 6.5 |
| 1991 | 26.7°C | 20.4°C | 14.0°C | 31.3°C | 6.7°C | 53 mm | 64% | 2.6 m/s | 6.6 |
| 1990 | 23.4°C | 17.6°C | 11.9°C | 29.9°C | 3.9°C | 66 mm | 72% | 3.6 m/s | 5.8 |
| 1989 | 23.9°C | 18.4°C | 13.0°C | 30.5°C | 7.3°C | 75 mm | 75% | 2.6 m/s | 5.4 |
| 1988 | 25.8°C | 18.5°C | 11.2°C | 36.4°C | 4.7°C | 20 mm | 54% | 3.6 m/s | 7.1 |
| 1987 | 26.0°C | 19.8°C | 13.6°C | 32.9°C | 5.3°C | 62 mm | 65% | 3 m/s | 6.2 |
| 1986 | 22.4°C | 16.4°C | 10.5°C | 27.6°C | 3.4°C | 106 mm | 75% | 3.2 m/s | 6.5 |
| 1985 | 21.1°C | 15.3°C | 9.5°C | 26.1°C | 3.9°C | 62 mm | 71% | 3.2 m/s | 6.8 |
| 1984 | 23.5°C | 18.0°C | 12.6°C | 26.8°C | 6.7°C | 104 mm | 76% | 3.2 m/s | 5.8 |
| 1983 | 23.7°C | 17.9°C | 12.2°C | 28.9°C | 3.0°C | 62 mm | 74% | 2.5 m/s | — |
| 1982 ❄️ | 20.4°C | 15.3°C | 10.2°C | 24.9°C | 4.7°C | 141 mm | 80% | 2.7 m/s | — |
| 1981 | 23.9°C | 18.5°C | 13.0°C | 29.4°C | 6.0°C | 80 mm | 73% | 3.3 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 24.8°C with lows near 13°C (mean 18.9°C), based on 45 years of NASA POWER data.
June averages 70 mm of rainfall in St. Thomas, a relatively wet time of year. The wettest on record was 174 mm in 2000.
The hottest June reached 36.4°C in 1988. The coldest dipped to 2.6°C in 2003.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 3.7°C. Daytime highs moved from 22.5°C to 26.9°C and overnight lows from 11.5°C to 14.6°C over the same span.
June is one of the warmer months of the year in St. Thomas and a relatively wet time of year, so plan for around 24.8°C daytime highs and 13°C at night.
Not quite — June is the 10th coolest month in St. Thomas, averaging 18.9°C.
For June in St. Thomas, pack light layers you can adjust through the day, with typical highs of 24.8°C and lows of 13°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 70% — moderately humid.
Average wind speed in June is 3 m/s. The windiest June on record averaged 3.6 m/s (1988).
The wettest June on record was 2000 with 174 mm. On average, June sees 70 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in St. Thomas behaves each June, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for June specifically, along with year-by-year records and how the month has changed over the decades.
