July is one of the warmer months of the year in Gravenhurst, with average highs near 26°C and lows around 14.5°C (mean 20.3°C). It is about average for rainfall, averaging 50 mm of rainfall and 69% relative humidity across the period.
July is one of the warmer months of the year in Gravenhurst. Across 45 years of records, the warmest July in Gravenhurst was 2020 — when the month averaged 23.9°C — while the coldest was 1992 at 16.9°C. Typical July days reach 26°C with nights near 14.5°C. The long-term trend is warming, about 0.8°C per decade.
July is about average for rainfall in Gravenhurst, averaging 50 mm of rainfall. The wettest July on record was 1991 with 120 mm, while the driest was 1989 at 10 mm.
Relative humidity in Gravenhurst during July averages 69%. The most humid July was 2004 at 81%, and the least humid was 2012 at 58%.
July receives about 6 kWh/m²/day of solar energy in Gravenhurst. The sunniest July was 1989 at 6.7 kWh/m²/day, and the cloudiest was 2021 at 5.1.
Average wind speed in Gravenhurst during July is 0.4 m/s. The windiest July was 2014 at 0.5 m/s, while the calmest were 1995, 2004 and 2011, among others at 0.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 19.5°C | 19.2°C | 19.4°C | 21.5°C | 22.2°C | +2.7°C |
| Avg High | 25.3°C | 24.8°C | 24.7°C | 27.6°C | 28.2°C | +2.9°C |
| Avg Low | 13.7°C | 13.7°C | 14.0°C | 15.4°C | 16.2°C | +2.5°C |
| Avg Rain | 44 mm | 72 mm | 59 mm | 39 mm | 29 mm | -15 mm |
July temperatures in Gravenhurst have risen by about 3.5°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 5.6°C (1982) to a record high of 35.5°C (2020).
Rainfall in July is about average for rainfall, averaging 50 mm, with a wettest year of 120 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.9°C per decade while lows rose 0.7°C per decade, widening the gap between day and night.
One of the best times to visit Gravenhurst
July is one of the best times to visit Gravenhurst. Expect days averaging 26°C and nights around 14.5°C (mean 20.3°C) — warmer than Gravenhurst's yearly average — with moderate rainfall (50 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 | 29.8°C | 23.2°C | 16.5°C | 33.9°C | 11.2°C | 17 mm | 61% | 0.4 m/s | 6.4 |
| 2024 | 28.7°C | 22.4°C | 16.2°C | 33.9°C | 9.5°C | 25 mm | 63% | 0.4 m/s | 6 |
| 2023 | 27.6°C | 21.9°C | 16.1°C | 32.5°C | 13.5°C | 40 mm | 66% | 0.4 m/s | 5.8 |
| 2022 | 26.6°C | 20.7°C | 14.9°C | 32.4°C | 9.6°C | 30 mm | 63% | 0.4 m/s | 6 |
| 2021 | 26.7°C | 21.0°C | 15.3°C | 31.0°C | 11.4°C | 36 mm | 66% | 0.4 m/s | 5.1 |
| 2020 🔥 | 30.0°C | 23.9°C | 17.9°C | 35.5°C | 14.1°C | 25 mm | 64% | 0.4 m/s | 6.4 |
| 2019 | 28.6°C | 22.4°C | 16.2°C | 32.8°C | 11.8°C | 54 mm | 67% | 0.4 m/s | 6.6 |
| 2018 | 28.6°C | 22.4°C | 16.3°C | 35.4°C | 11.8°C | 35 mm | 63% | 0.4 m/s | 6.5 |
| 2017 | 26.3°C | 20.6°C | 15.0°C | 31.0°C | 12.2°C | 47 mm | 71% | 0.4 m/s | 5.6 |
| 2016 | 27.8°C | 21.9°C | 16.1°C | 33.2°C | 10.7°C | 35 mm | 64% | 0.4 m/s | 6.3 |
| 2015 | 27.2°C | 20.4°C | 13.7°C | 33.5°C | 8.2°C | 26 mm | 65% | 0.4 m/s | 6.5 |
| 2014 | 24.0°C | 18.4°C | 12.9°C | 31.2°C | 8.7°C | 56 mm | 70% | 0.5 m/s | 5.7 |
| 2013 | 27.9°C | 21.7°C | 15.5°C | 33.5°C | 10.3°C | 25 mm | 65% | 0.4 m/s | 5.8 |
| 2012 | 29.0°C | 22.7°C | 16.4°C | 33.3°C | 12.6°C | 23 mm | 58% | 0.4 m/s | 6.5 |
| 2011 | 28.9°C | 22.4°C | 15.9°C | 32.9°C | 9.8°C | 45 mm | 64% | 0.3 m/s | 6.5 |
| 2010 | 27.7°C | 21.9°C | 16.2°C | 33.4°C | 9.2°C | 42 mm | 67% | 0.4 m/s | 6.3 |
| 2009 | 23.0°C | 17.8°C | 12.6°C | 28.8°C | 9.6°C | 44 mm | 73% | 0.4 m/s | 5.3 |
| 2008 | 25.4°C | 20.1°C | 14.7°C | 29.7°C | 9.6°C | 48 mm | 70% | 0.4 m/s | 5.9 |
| 2007 | 25.3°C | 19.4°C | 13.6°C | 31.8°C | 7.3°C | 58 mm | 68% | 0.4 m/s | 5.9 |
| 2006 | 27.1°C | 21.7°C | 16.2°C | 32.0°C | 10.9°C | 65 mm | 71% | 0.4 m/s | 5.8 |
| 2005 | 28.5°C | 22.2°C | 15.9°C | 35.3°C | 8.8°C | 28 mm | 64% | 0.4 m/s | 6.3 |
| 2004 | 23.3°C | 18.3°C | 13.4°C | 28.2°C | 8.0°C | 76 mm | 81% | 0.3 m/s | 5.4 |
| 2003 | 23.9°C | 18.7°C | 13.4°C | 28.6°C | 10.0°C | 55 mm | 75% | 0.4 m/s | 5.8 |
| 2002 | 24.8°C | 19.6°C | 14.4°C | 28.8°C | 9.8°C | 46 mm | 79% | 0.4 m/s | 6.6 |
| 2001 | 22.7°C | 17.7°C | 12.6°C | 29.5°C | 5.9°C | 57 mm | 76% | 0.4 m/s | 6.2 |
| 2000 | 23.3°C | 18.3°C | 13.2°C | 28.8°C | 7.8°C | 116 mm | 75% | 0.4 m/s | 5.5 |
| 1999 | 25.8°C | 20.5°C | 15.3°C | 30.8°C | 9.8°C | 72 mm | 73% | 0.4 m/s | 6.3 |
| 1998 | 25.4°C | 19.9°C | 14.5°C | 32.7°C | 10.9°C | 46 mm | 68% | 0.4 m/s | 6.2 |
| 1997 | 24.3°C | 18.6°C | 12.8°C | 28.6°C | 8.0°C | 47 mm | 73% | 0.4 m/s | 6.2 |
| 1996 | 23.1°C | 17.6°C | 12.2°C | 29.5°C | 8.7°C | 72 mm | 73% | 0.4 m/s | 5.9 |
| 1995 | 26.4°C | 20.4°C | 14.4°C | 33.5°C | 9.5°C | 61 mm | 70% | 0.3 m/s | 5.6 |
| 1994 | 25.1°C | 19.7°C | 14.3°C | 28.9°C | 8.9°C | 49 mm | 74% | 0.3 m/s | 5.8 |
| 1993 | 25.3°C | 19.6°C | 14.0°C | 31.4°C | 9.4°C | 64 mm | 73% | 0.4 m/s | 6 |
| 1992 ❄️ | 22.5°C | 16.9°C | 11.2°C | 26.9°C | 6.4°C | 98 mm | 73% | 0.4 m/s | 5.3 |
| 1991 🌧️ | 24.8°C | 19.5°C | 14.2°C | 31.5°C | 9.5°C | 120 mm | 72% | 0.4 m/s | 6.1 |
| 1990 | 25.3°C | 19.5°C | 13.7°C | 31.9°C | 8.7°C | 91 mm | 70% | 0.3 m/s | 5.8 |
| 1989 | 27.7°C | 21.2°C | 14.6°C | 32.2°C | 8.8°C | 10 mm | 61% | 0.4 m/s | 6.7 |
| 1988 | 28.2°C | 21.9°C | 15.6°C | 34.1°C | 9.1°C | 74 mm | 65% | 0.3 m/s | 6.1 |
| 1987 | 28.1°C | 21.7°C | 15.3°C | 32.6°C | 8.5°C | 14 mm | 62% | 0.3 m/s | 6.3 |
| 1986 | 25.8°C | 19.8°C | 13.8°C | 31.5°C | 8.2°C | 48 mm | 68% | 0.3 m/s | 6.2 |
| 1985 | 22.3°C | 17.1°C | 11.8°C | 27.8°C | 7.6°C | 69 mm | 78% | 0.3 m/s | 6.3 |
| 1984 | 22.9°C | 17.4°C | 11.8°C | 28.1°C | 6.7°C | 65 mm | 76% | 0.3 m/s | 5.4 |
| 1983 | 24.6°C | 19.3°C | 14.0°C | 28.8°C | 6.1°C | 29 mm | 77% | 0.3 m/s | — |
| 1982 | 23.5°C | 18.1°C | 12.6°C | 28.8°C | 5.6°C | 50 mm | 77% | 0.3 m/s | — |
| 1981 | 24.9°C | 19.4°C | 13.8°C | 28.4°C | 8.9°C | 37 mm | 73% | 0.4 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 26°C with lows near 14.5°C (mean 20.3°C), based on 45 years of NASA POWER data.
July averages 50 mm of rainfall in Gravenhurst, about average for rainfall. The wettest on record was 120 mm in 1991.
The hottest July reached 35.5°C in 2020. The coldest dipped to 5.6°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 3.5°C. Daytime highs moved from 23.6°C to 27.9°C and overnight lows from 12.8°C to 15.8°C over the same span.
July is one of the warmer months of the year in Gravenhurst and about average for rainfall, so plan for around 26°C daytime highs and 14.5°C at night.
Not quite — July is the 12th coolest month in Gravenhurst, averaging 20.3°C.
For July in Gravenhurst, pack light layers you can adjust through the day, with typical highs of 26°C and lows of 14.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 69% — moderately humid.
Average wind speed in July is 0.4 m/s. The windiest July on record averaged 0.5 m/s (2014).
The wettest July on record was 1991 with 120 mm. On average, July sees 50 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 Gravenhurst 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.
