July is one of the warmer months of the year in Windsor, with average highs near 27.1°C and lows around 16.7°C (mean 21.9°C). It is a relatively wet time of year, averaging 87 mm of rainfall and 74% relative humidity across the period.
July is one of the warmer months of the year in Windsor. Across 45 years of records, the warmest July in Windsor was 1988 — when the month averaged 24.6°C — while the coldest was 2009 at 18.9°C. Typical July days reach 27.1°C with nights near 16.7°C. The long-term trend is warming, about 0.3°C per decade.
July is a relatively wet time of year in Windsor, averaging 87 mm of rainfall. The wettest July on record was 1992 with 168 mm, while the driest was 2001 at 37 mm.
Relative humidity in Windsor during July averages 74%. The most humid July was 2013 at 81%, and the least humid was 1988 at 60%.
July receives about 6.1 kWh/m²/day of solar energy in Windsor. The sunniest Julys were 2002 and 2020 at 6.6 kWh/m²/day, and the cloudiest were 2000, 2004 and 2013, among others at 5.6.
Average wind speed in Windsor during July is 2.5 m/s. The windiest Julys were 1992 and 2006 at 2.9 m/s, while the calmest was 1989 at 1.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 21.7°C | 21.3°C | 21.5°C | 22.3°C | 22.9°C | +1.2°C |
| Avg High | 27.1°C | 26.5°C | 26.9°C | 27.4°C | 28.0°C | +0.9°C |
| Avg Low | 16.4°C | 16.1°C | 16.2°C | 17.3°C | 17.8°C | +1.4°C |
| Avg Rain | 81 mm | 82 mm | 81 mm | 92 mm | 103 mm | +22 mm |
July temperatures in Windsor have risen by about 1.7°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 7.2°C (2001) to a record high of 37.6°C (1988).
Rainfall in July is a relatively wet time of year, averaging 87 mm, with a wettest year of 168 mm.
One of the best times to visit Windsor
July is one of the best times to visit Windsor. Expect days averaging 27.1°C and nights around 16.7°C (mean 21.9°C) — warmer than Windsor's yearly average — with higher rainfall (87 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 | 29.4°C | 24.1°C | 18.8°C | 34.9°C | 13.2°C | 86 mm | 71% | 2.2 m/s | 6.1 |
| 2024 | 27.2°C | 22.4°C | 17.6°C | 30.8°C | 10.0°C | 125 mm | 74% | 2.1 m/s | 6 |
| 2023 | 27.5°C | 22.4°C | 17.4°C | 31.3°C | 13.6°C | 140 mm | 73% | 2 m/s | 5.8 |
| 2022 | 28.3°C | 22.7°C | 17.0°C | 32.6°C | 12.7°C | 57 mm | 69% | 2.6 m/s | 6.3 |
| 2021 | 26.5°C | 21.7°C | 16.9°C | 30.7°C | 12.1°C | 119 mm | 77% | 2.6 m/s | 5.7 |
| 2020 | 29.0°C | 24.0°C | 19.0°C | 32.6°C | 16.3°C | 92 mm | 74% | 2.2 m/s | 6.6 |
| 2019 | 27.6°C | 22.7°C | 17.8°C | 31.6°C | 13.0°C | 81 mm | 80% | 2.4 m/s | 6.5 |
| 2018 | 27.0°C | 22.1°C | 17.3°C | 30.9°C | 11.6°C | 70 mm | 76% | 2.2 m/s | 6.4 |
| 2017 | 26.7°C | 21.7°C | 16.7°C | 30.1°C | 12.7°C | 79 mm | 77% | 2.3 m/s | 6.1 |
| 2016 | 29.2°C | 23.7°C | 18.3°C | 34.2°C | 11.4°C | 93 mm | 71% | 2.5 m/s | 6.2 |
| 2015 | 26.2°C | 20.8°C | 15.4°C | 30.9°C | 9.1°C | 74 mm | 74% | 2.3 m/s | 6.3 |
| 2014 | 24.6°C | 19.6°C | 14.7°C | 30.7°C | 10.3°C | 85 mm | 75% | 2.6 m/s | 6 |
| 2013 | 25.9°C | 21.4°C | 17.0°C | 31.1°C | 10.8°C | 108 mm | 81% | 2.4 m/s | 5.6 |
| 2012 | 30.0°C | 24.4°C | 18.8°C | 36.1°C | 14.6°C | 90 mm | 69% | 2.3 m/s | 6.4 |
| 2011 | 28.6°C | 23.7°C | 18.8°C | 33.8°C | 13.8°C | 127 mm | 77% | 2.2 m/s | 6.5 |
| 2010 | 28.3°C | 23.3°C | 18.4°C | 32.4°C | 10.8°C | 111 mm | 75% | 2.4 m/s | 6.4 |
| 2009 ❄️ | 23.7°C | 18.9°C | 14.1°C | 26.8°C | 10.7°C | 58 mm | 78% | 2.5 m/s | 5.7 |
| 2008 | 26.4°C | 21.4°C | 16.4°C | 29.4°C | 10.1°C | 100 mm | 77% | 2.7 m/s | 6.5 |
| 2007 | 26.8°C | 21.2°C | 15.6°C | 33.3°C | 9.7°C | 53 mm | 68% | 2.5 m/s | 6.2 |
| 2006 | 28.2°C | 23.0°C | 17.8°C | 33.4°C | 12.2°C | 91 mm | 74% | 2.9 m/s | 6 |
| 2005 | 29.5°C | 23.6°C | 17.8°C | 34.0°C | 11.9°C | 105 mm | 68% | 2.3 m/s | 6.4 |
| 2004 | 25.1°C | 20.3°C | 15.5°C | 29.7°C | 12.0°C | 107 mm | 79% | 2.7 m/s | 5.6 |
| 2003 | 27.7°C | 22.0°C | 16.3°C | 32.2°C | 13.1°C | 54 mm | 67% | 2.8 m/s | 6 |
| 2002 | 28.8°C | 23.0°C | 17.3°C | 32.8°C | 11.1°C | 81 mm | 70% | 2.5 m/s | 6.6 |
| 2001 | 27.4°C | 21.5°C | 15.6°C | 33.8°C | 7.2°C | 37 mm | 68% | 2.5 m/s | 6.5 |
| 2000 | 25.2°C | 20.2°C | 15.3°C | 28.6°C | 11.4°C | 123 mm | 75% | 2.5 m/s | 5.6 |
| 1999 | 29.4°C | 23.8°C | 18.3°C | 34.9°C | 14.0°C | 101 mm | 72% | 2.7 m/s | 6.2 |
| 1998 | 27.7°C | 22.1°C | 16.5°C | 33.1°C | 12.3°C | 65 mm | 68% | 2.6 m/s | 6.3 |
| 1997 | 26.1°C | 20.7°C | 15.2°C | 30.9°C | 9.8°C | 74 mm | 75% | 2.5 m/s | 6.2 |
| 1996 | 25.1°C | 19.7°C | 14.3°C | 28.9°C | 9.3°C | 61 mm | 72% | 2.6 m/s | 6.2 |
| 1995 | 27.0°C | 21.9°C | 16.9°C | 33.2°C | 10.2°C | 88 mm | 76% | 2.6 m/s | 5.8 |
| 1994 | 26.0°C | 21.1°C | 16.2°C | 30.2°C | 11.4°C | 86 mm | 78% | 2.5 m/s | 5.9 |
| 1993 | 26.6°C | 21.8°C | 17.1°C | 30.0°C | 12.1°C | 67 mm | 78% | 2.6 m/s | 5.8 |
| 1992 🌧️ | 24.1°C | 19.0°C | 14.0°C | 27.1°C | 9.4°C | 168 mm | 79% | 2.9 m/s | 6 |
| 1991 | 27.4°C | 22.1°C | 16.7°C | 33.5°C | 12.4°C | 56 mm | 70% | 2.4 m/s | 6.4 |
| 1990 | 26.0°C | 20.6°C | 15.3°C | 32.0°C | 10.4°C | 48 mm | 73% | 2.8 m/s | 5.8 |
| 1989 | 26.2°C | 21.5°C | 16.7°C | 30.6°C | 11.7°C | 74 mm | 77% | 1.9 m/s | 6 |
| 1988 🔥 | 31.0°C | 24.6°C | 18.2°C | 37.6°C | 10.3°C | 85 mm | 60% | 2.2 m/s | 6.2 |
| 1987 | 28.5°C | 23.2°C | 17.8°C | 33.2°C | 10.5°C | 76 mm | 73% | 2.5 m/s | 6.3 |
| 1986 | 26.5°C | 21.5°C | 16.5°C | 30.8°C | 10.2°C | 80 mm | 78% | 2.6 m/s | 6.4 |
| 1985 | 25.4°C | 20.2°C | 15.1°C | 29.4°C | 9.9°C | 93 mm | 74% | 2.7 m/s | 6.4 |
| 1984 | 26.0°C | 20.3°C | 14.7°C | 31.5°C | 9.0°C | 47 mm | 70% | 2.5 m/s | 5.6 |
| 1983 | 27.0°C | 21.9°C | 16.9°C | 30.4°C | 7.6°C | 97 mm | 78% | 2.5 m/s | — |
| 1982 | 26.2°C | 20.7°C | 15.2°C | 29.3°C | 9.4°C | 81 mm | 77% | 2.4 m/s | — |
| 1981 | 27.0°C | 21.8°C | 16.6°C | 31.7°C | 11.8°C | 99 mm | 71% | 2.2 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 27.1°C with lows near 16.7°C (mean 21.9°C), based on 45 years of NASA POWER data.
July averages 87 mm of rainfall in Windsor, a relatively wet time of year. The wettest on record was 168 mm in 1992.
The hottest July reached 37.6°C in 1988. The coldest dipped to 7.2°C in 2001.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.7°C. Daytime highs moved from 26.3°C to 27.8°C and overnight lows from 15.7°C to 17.5°C over the same span.
July is one of the warmer months of the year in Windsor and a relatively wet time of year, so plan for around 27.1°C daytime highs and 16.7°C at night.
Not quite — July is the 12th coolest month in Windsor, averaging 21.9°C.
For July in Windsor, pack light layers you can adjust through the day, with typical highs of 27.1°C and lows of 16.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 74% — moderately humid.
Average wind speed in July is 2.5 m/s. The windiest July on record averaged 2.9 m/s (1992).
The wettest July on record was 1992 with 168 mm. On average, July sees 87 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 Windsor 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.
