June is one of the warmer months of the year in Dover, with average highs near 16.4°C and lows around 12.6°C (mean 14.5°C). It is one of the drier months, averaging 52 mm of rainfall and 84% relative humidity across the period.
June is one of the warmer months of the year in Dover. Across 45 years of records, the warmest June in Dover was 2025 — when the month averaged 16.7°C — while the coldest was 1991 at 12.4°C. Typical June days reach 16.4°C with nights near 12.6°C. The long-term trend is warming, about 0.5°C per decade.
June is one of the drier months in Dover, averaging 52 mm of rainfall. The wettest June on record was 2007 with 122 mm, while the driest was 2018 at 6 mm.
Relative humidity in Dover during June averages 84%. The most humid June was 2016 at 88%, and the least humid was 2014 at 81%.
June receives about 5.3 kWh/m²/day of solar energy in Dover. The sunniest Junes were 2006, 2018 and 2025 at 6 kWh/m²/day, and the cloudiest was 1987 at 4.1.
Average wind speed in Dover during June is 4.3 m/s. The windiest June was 2012 at 5.4 m/s, while the calmest were 2006 and 2021 at 3.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.7°C | 14.0°C | 14.7°C | 14.7°C | 15.7°C | +2°C |
| Avg High | 15.6°C | 15.9°C | 16.7°C | 16.5°C | 17.7°C | +2.1°C |
| Avg Low | 11.8°C | 12.1°C | 12.7°C | 12.9°C | 13.7°C | +1.9°C |
| Avg Rain | 52 mm | 60 mm | 48 mm | 52 mm | 48 mm | -5 mm |
June temperatures in Dover have risen by about 2°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 7.1°C (1991) to a record high of 25.4°C (2025).
Rainfall in June is one of the drier months, averaging 52 mm, with a wettest year of 122 mm.
One of the best times to visit Dover
June is one of the best times to visit Dover. Expect days averaging 16.4°C and nights around 12.6°C (mean 14.5°C) — warmer than Dover's yearly average — with moderate rainfall (52 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 🔥 | 18.9°C | 16.7°C | 14.4°C | 25.4°C | 11.3°C | 29 mm | 83% | 4.7 m/s | 6 |
| 2024 | 17.0°C | 15.1°C | 13.1°C | 20.9°C | 11.2°C | 27 mm | 81% | 4.2 m/s | 5.7 |
| 2023 | 18.2°C | 16.2°C | 14.2°C | 22.8°C | 11.1°C | 30 mm | 85% | 4.4 m/s | 5.8 |
| 2022 | 17.6°C | 15.6°C | 13.6°C | 22.4°C | 10.6°C | 47 mm | 82% | 4.2 m/s | 5.9 |
| 2021 | 17.5°C | 15.5°C | 13.5°C | 21.4°C | 12.2°C | 97 mm | 85% | 3.3 m/s | 5 |
| 2020 | 17.1°C | 15.2°C | 13.2°C | 23.3°C | 9.7°C | 56 mm | 81% | 4.5 m/s | 5.6 |
| 2019 | 17.0°C | 15.2°C | 13.4°C | 23.5°C | 11.6°C | 70 mm | 84% | 4.4 m/s | 5.2 |
| 2018 | 16.8°C | 15.0°C | 13.3°C | 20.0°C | 11.5°C | 6 mm | 84% | 4.7 m/s | 6 |
| 2017 | 18.4°C | 16.3°C | 14.2°C | 25.1°C | 12.0°C | 57 mm | 82% | 4.7 m/s | 5.8 |
| 2016 | 16.4°C | 14.7°C | 13.0°C | 19.7°C | 10.7°C | 73 mm | 88% | 4.4 m/s | 4.6 |
| 2015 | 16.4°C | 14.4°C | 12.3°C | 21.2°C | 9.7°C | 28 mm | 82% | 4.9 m/s | 5.6 |
| 2014 | 17.0°C | 15.2°C | 13.4°C | 20.5°C | 11.0°C | 41 mm | 81% | 3.4 m/s | 5.5 |
| 2013 | 14.7°C | 13.1°C | 11.6°C | 18.1°C | 9.0°C | 27 mm | 86% | 5.1 m/s | 4.9 |
| 2012 | 15.8°C | 14.1°C | 12.4°C | 21.3°C | 10.2°C | 92 mm | 85% | 5.4 m/s | 4.8 |
| 2011 | 16.3°C | 14.5°C | 12.7°C | 22.1°C | 10.2°C | 82 mm | 83% | 5.3 m/s | 5.3 |
| 2010 | 16.6°C | 14.5°C | 12.4°C | 22.3°C | 9.8°C | 49 mm | 83% | 3.9 m/s | 5.6 |
| 2009 | 16.7°C | 14.8°C | 12.8°C | 20.5°C | 10.2°C | 35 mm | 82% | 3.6 m/s | 5.5 |
| 2008 | 16.5°C | 14.7°C | 12.9°C | 18.3°C | 10.7°C | 49 mm | 83% | 4.3 m/s | 5.3 |
| 2007 🌧️ | 16.6°C | 15.0°C | 13.5°C | 20.1°C | 11.5°C | 122 mm | 87% | 4.7 m/s | 4.9 |
| 2006 | 16.9°C | 14.6°C | 12.4°C | 22.7°C | 8.8°C | 45 mm | 82% | 3.3 m/s | 6 |
| 2005 | 16.8°C | 14.7°C | 12.5°C | 24.7°C | 9.0°C | 28 mm | 84% | 4 m/s | 5.4 |
| 2004 | 16.9°C | 14.9°C | 12.8°C | 20.7°C | 10.4°C | 37 mm | 84% | 4.2 m/s | 5.4 |
| 2003 | 17.6°C | 15.5°C | 13.4°C | 20.7°C | 11.8°C | 57 mm | 85% | 3.5 m/s | 5.6 |
| 2002 | 16.3°C | 14.5°C | 12.7°C | 19.7°C | 10.8°C | 60 mm | 85% | 4.4 m/s | 5.1 |
| 2001 | 16.1°C | 14.0°C | 11.9°C | 22.3°C | 8.3°C | 21 mm | 82% | 3.9 m/s | 5.6 |
| 2000 | 16.5°C | 14.5°C | 12.5°C | 21.1°C | 10.6°C | 27 mm | 86% | 4.1 m/s | 4.8 |
| 1999 | 16.3°C | 14.4°C | 12.4°C | 20.3°C | 9.6°C | 68 mm | 82% | 4.4 m/s | 5.4 |
| 1998 | 16.1°C | 14.4°C | 12.7°C | 22.0°C | 9.3°C | 94 mm | 87% | 5.3 m/s | 4.5 |
| 1997 | 16.0°C | 14.3°C | 12.6°C | 19.9°C | 10.9°C | 106 mm | 85% | 4.6 m/s | 4.6 |
| 1996 | 16.1°C | 13.9°C | 11.8°C | 22.0°C | 9.6°C | 20 mm | 82% | 3.6 m/s | 5.6 |
| 1995 | 15.3°C | 13.5°C | 11.7°C | 23.6°C | 9.9°C | 35 mm | 85% | 4.7 m/s | 4.8 |
| 1994 | 16.2°C | 14.0°C | 11.8°C | 21.3°C | 8.7°C | 42 mm | 83% | 4.6 m/s | 5.6 |
| 1993 | 16.9°C | 14.8°C | 12.8°C | 22.7°C | 10.6°C | 47 mm | 84% | 3.6 m/s | 5.2 |
| 1992 | 16.6°C | 14.7°C | 12.7°C | 22.9°C | 10.4°C | 39 mm | 84% | 4 m/s | 5.3 |
| 1991 ❄️ | 14.0°C | 12.4°C | 10.7°C | 16.4°C | 7.1°C | 88 mm | 84% | 5.2 m/s | 4.6 |
| 1990 | 15.7°C | 13.9°C | 12.2°C | 19.2°C | 10.2°C | 57 mm | 81% | 4.6 m/s | 4.8 |
| 1989 | 16.3°C | 14.2°C | 12.1°C | 20.2°C | 9.0°C | 48 mm | 81% | 3.9 m/s | 5.5 |
| 1988 | 14.8°C | 13.3°C | 11.8°C | 18.2°C | 9.3°C | 18 mm | 86% | 4.2 m/s | 4.8 |
| 1987 | 15.1°C | 13.3°C | 11.5°C | 22.0°C | 9.6°C | 72 mm | 86% | 4.2 m/s | 4.1 |
| 1986 | 15.9°C | 13.8°C | 11.8°C | 22.4°C | 8.1°C | 28 mm | 85% | 4.4 m/s | 5.2 |
| 1985 | 14.8°C | 13.0°C | 11.3°C | 17.3°C | 7.8°C | 69 mm | 85% | 4.5 m/s | 4.6 |
| 1984 | 15.7°C | 13.5°C | 11.3°C | 20.7°C | 8.2°C | 38 mm | 83% | 3.4 m/s | 5.2 |
| 1983 | 15.7°C | 13.9°C | 12.0°C | 20.6°C | 10.2°C | 53 mm | 85% | 4.3 m/s | — |
| 1982 | 17.0°C | 15.1°C | 13.1°C | 22.6°C | 10.9°C | 61 mm | 85% | 4.1 m/s | — |
| 1981 | 15.1°C | 13.4°C | 11.6°C | 18.3°C | 10.3°C | 83 mm | 84% | 5.1 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 16.4°C with lows near 12.6°C (mean 14.5°C), based on 45 years of NASA POWER data.
June averages 52 mm of rainfall in Dover, one of the drier months. The wettest on record was 122 mm in 2007.
The hottest June reached 25.4°C in 2025. The coldest dipped to 7.1°C in 1991.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 2°C. Daytime highs moved from 15.7°C to 17.8°C and overnight lows from 11.9°C to 13.8°C over the same span.
June is one of the warmer months of the year in Dover and one of the drier months, so plan for around 16.4°C daytime highs and 12.6°C at night.
Not quite — June is the 9th coolest month in Dover, averaging 14.5°C.
For June in Dover, pack light layers you can adjust through the day, with typical highs of 16.4°C and lows of 12.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 84% — quite humid.
Average wind speed in June is 4.3 m/s. The windiest June on record averaged 5.4 m/s (2012).
The wettest June on record was 2007 with 122 mm. On average, June sees 52 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 Dover 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.
