July is one of the warmer months of the year in Dover, with average highs near 30.5°C and lows around 20.7°C (mean 25.6°C). It is a relatively wet time of year, averaging 113 mm of rainfall and 72% relative humidity across the period.
July is one of the warmer months of the year in Dover. Across 45 years of records, the warmest July in Dover was 2012 — when the month averaged 28°C — while the coldest was 1984 at 22.5°C. Typical July days reach 30.5°C with nights near 20.7°C. The long-term trend is warming, about 0.5°C per decade.
July is a relatively wet time of year in Dover, averaging 113 mm of rainfall. The wettest July on record was 1989 with 200 mm, while the driest was 1983 at 41 mm.
Relative humidity in Dover during July averages 72%. The most humid July was 2013 at 83%, and the least humid was 1999 at 60%.
July receives about 6 kWh/m²/day of solar energy in Dover. The sunniest July was 2019 at 6.7 kWh/m²/day, and the cloudiest was 1984 at 5.4.
Average wind speed in Dover during July is 2.3 m/s. The windiest July was 1996 at 2.7 m/s, while the calmest was 2025 at 1.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 24.9°C | 25.6°C | 24.8°C | 26.3°C | 27.0°C | +2.1°C |
| Avg High | 30.0°C | 30.7°C | 29.6°C | 31.0°C | 31.8°C | +1.8°C |
| Avg Low | 19.8°C | 20.5°C | 20.1°C | 21.5°C | 22.2°C | +2.4°C |
| Avg Rain | 109 mm | 99 mm | 107 mm | 119 mm | 145 mm | +36 mm |
July temperatures in Dover have risen by about 2.6°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 11.1°C (1988) to a record high of 39.2°C (2012).
Rainfall in July is a relatively wet time of year, averaging 113 mm, with a wettest year of 200 mm.
One of the best times to visit Dover
July is one of the best times to visit Dover. Expect days averaging 30.5°C and nights around 20.7°C (mean 25.6°C) — warmer than Dover's yearly average — with higher rainfall (113 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 | 32.0°C | 27.4°C | 22.7°C | 36.2°C | 18.3°C | 165 mm | 74% | 1.9 m/s | 6.2 |
| 2024 | 32.1°C | 27.3°C | 22.5°C | 36.6°C | 17.1°C | 134 mm | 73% | 2.3 m/s | 6.1 |
| 2023 | 30.7°C | 26.3°C | 21.9°C | 33.6°C | 18.7°C | 185 mm | 77% | 2 m/s | 6.1 |
| 2022 | 32.3°C | 27.2°C | 22.0°C | 36.9°C | 17.0°C | 101 mm | 70% | 2.3 m/s | 6 |
| 2021 | 31.6°C | 26.5°C | 21.5°C | 34.7°C | 16.4°C | 106 mm | 71% | 2.4 m/s | 6.2 |
| 2020 | 32.1°C | 27.4°C | 22.8°C | 36.2°C | 20.5°C | 178 mm | 73% | 2.1 m/s | 6.4 |
| 2019 | 31.9°C | 26.8°C | 21.6°C | 36.3°C | 17.4°C | 107 mm | 71% | 2.1 m/s | 6.7 |
| 2018 | 29.8°C | 25.2°C | 20.6°C | 34.0°C | 15.2°C | 153 mm | 76% | 2.5 m/s | 6.3 |
| 2017 | 31.0°C | 26.4°C | 21.7°C | 36.4°C | 15.5°C | 193 mm | 73% | 2.3 m/s | 5.8 |
| 2016 | 31.3°C | 26.7°C | 22.0°C | 35.9°C | 17.2°C | 128 mm | 73% | 2.1 m/s | 6.3 |
| 2015 | 29.3°C | 25.0°C | 20.7°C | 33.6°C | 16.9°C | 95 mm | 77% | 2.1 m/s | 6.1 |
| 2014 | 29.6°C | 24.7°C | 19.7°C | 33.6°C | 14.6°C | 103 mm | 73% | 2.6 m/s | 6.3 |
| 2013 | 28.8°C | 25.3°C | 21.8°C | 32.6°C | 16.3°C | 136 mm | 83% | 2.4 m/s | 5.8 |
| 2012 🔥 | 33.1°C | 28.0°C | 22.8°C | 39.2°C | 20.0°C | 83 mm | 64% | 2.2 m/s | 6 |
| 2011 | 33.2°C | 27.8°C | 22.4°C | 39.0°C | 17.4°C | 83 mm | 66% | 2.2 m/s | 6.6 |
| 2010 | 32.4°C | 27.1°C | 21.8°C | 38.6°C | 15.5°C | 112 mm | 66% | 2.3 m/s | 6.5 |
| 2009 | 28.5°C | 23.9°C | 19.2°C | 32.3°C | 15.1°C | 74 mm | 74% | 2.4 m/s | 6.1 |
| 2008 | 30.8°C | 25.8°C | 20.9°C | 34.4°C | 17.9°C | 92 mm | 71% | 2.2 m/s | 6.3 |
| 2007 | 30.9°C | 25.7°C | 20.4°C | 35.7°C | 14.6°C | 55 mm | 66% | 2.3 m/s | 6.2 |
| 2006 | 29.8°C | 25.5°C | 21.3°C | 35.1°C | 16.8°C | 103 mm | 79% | 2.2 m/s | 6.1 |
| 2005 | 30.5°C | 25.9°C | 21.3°C | 36.4°C | 16.8°C | 109 mm | 76% | 2.1 m/s | 5.8 |
| 2004 | 29.5°C | 25.1°C | 20.6°C | 32.9°C | 18.0°C | 157 mm | 77% | 2.4 m/s | 5.6 |
| 2003 | 27.8°C | 24.0°C | 20.2°C | 31.1°C | 17.5°C | 135 mm | 83% | 2.3 m/s | 5.7 |
| 2002 | 32.5°C | 26.5°C | 20.6°C | 37.1°C | 15.4°C | 61 mm | 61% | 2.4 m/s | 6.2 |
| 2001 | 28.4°C | 23.2°C | 17.9°C | 33.3°C | 12.5°C | 112 mm | 69% | 2.6 m/s | 6.5 |
| 2000 | 27.2°C | 22.7°C | 18.2°C | 32.3°C | 13.8°C | 173 mm | 76% | 2.2 m/s | 5.6 |
| 1999 | 33.3°C | 27.3°C | 21.4°C | 37.6°C | 16.8°C | 60 mm | 60% | 2.5 m/s | 6.2 |
| 1998 | 30.6°C | 25.2°C | 19.8°C | 35.8°C | 14.5°C | 52 mm | 67% | 2.2 m/s | 6.1 |
| 1997 | 31.3°C | 25.4°C | 19.5°C | 36.8°C | 16.0°C | 64 mm | 63% | 2.4 m/s | 6.4 |
| 1996 | 27.0°C | 22.9°C | 18.7°C | 30.0°C | 13.8°C | 173 mm | 82% | 2.7 m/s | 5.5 |
| 1995 | 31.4°C | 26.3°C | 21.2°C | 37.4°C | 15.6°C | 87 mm | 69% | 2.3 m/s | 5.8 |
| 1994 | 30.5°C | 26.0°C | 21.6°C | 33.8°C | 18.0°C | 138 mm | 75% | 2.2 m/s | 5.6 |
| 1993 | 32.2°C | 26.6°C | 21.0°C | 36.6°C | 16.0°C | 56 mm | 64% | 2.4 m/s | 6 |
| 1992 | 29.7°C | 24.9°C | 20.1°C | 35.2°C | 15.7°C | 119 mm | 71% | 2.5 m/s | 5.8 |
| 1991 | 31.3°C | 26.3°C | 21.2°C | 37.8°C | 17.7°C | 117 mm | 68% | 2.2 m/s | 5.6 |
| 1990 | 29.2°C | 24.8°C | 20.3°C | 33.1°C | 16.0°C | 124 mm | 77% | 2.5 m/s | 5.6 |
| 1989 🌧️ | 27.4°C | 23.6°C | 19.8°C | 30.9°C | 15.8°C | 200 mm | 83% | 2.1 m/s | 5.6 |
| 1988 | 32.0°C | 26.3°C | 20.6°C | 36.8°C | 11.1°C | 136 mm | 67% | 2.3 m/s | 6 |
| 1987 | 31.8°C | 26.3°C | 20.9°C | 37.1°C | 15.4°C | 81 mm | 69% | 2.1 m/s | 6.5 |
| 1986 | 32.4°C | 26.8°C | 21.1°C | 36.5°C | 13.4°C | 80 mm | 64% | 2.4 m/s | 6 |
| 1985 | 30.4°C | 25.1°C | 19.7°C | 33.7°C | 15.8°C | 126 mm | 68% | 2.4 m/s | 6.1 |
| 1984 ❄️ | 26.5°C | 22.5°C | 18.4°C | 30.1°C | 13.1°C | 131 mm | 82% | 2.4 m/s | 5.4 |
| 1983 | 29.6°C | 24.4°C | 19.1°C | 34.9°C | 14.0°C | 41 mm | 72% | 2.1 m/s | — |
| 1982 | 29.2°C | 24.4°C | 19.5°C | 34.4°C | 13.5°C | 101 mm | 74% | 2 m/s | — |
| 1981 | 30.6°C | 25.1°C | 19.5°C | 34.4°C | 14.4°C | 88 mm | 68% | 2.4 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 30.5°C with lows near 20.7°C (mean 25.6°C), based on 45 years of NASA POWER data.
July averages 113 mm of rainfall in Dover, a relatively wet time of year. The wettest on record was 200 mm in 1989.
The hottest July reached 39.2°C in 2012. The coldest dipped to 11.1°C in 1988.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 2.6°C. Daytime highs moved from 29.3°C to 31.7°C and overnight lows from 19.2°C to 22.1°C over the same span.
July is one of the warmer months of the year in Dover and a relatively wet time of year, so plan for around 30.5°C daytime highs and 20.7°C at night.
Not quite — July is the 12th coolest month in Dover, averaging 25.6°C.
For July in Dover, pack light, breathable clothing and sun protection, with typical highs of 30.5°C and lows of 20.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 72% — moderately humid.
Average wind speed in July is 2.3 m/s. The windiest July on record averaged 2.7 m/s (1996).
The wettest July on record was 1989 with 200 mm. On average, July sees 113 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 July, 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 July specifically, along with year-by-year records and how the month has changed over the decades.
