June is one of the warmer months of the year in Gravenhurst, with average highs near 22.9°C and lows around 10.9°C (mean 16.9°C). It is about average for rainfall, averaging 55 mm of rainfall and 71% relative humidity across the period.
June is one of the warmer months of the year in Gravenhurst. Across 45 years of records, the warmest June in Gravenhurst was 2005 — when the month averaged 20.5°C — while the coldest was 1985 at 13°C. Typical June days reach 22.9°C with nights near 10.9°C. The long-term trend is warming, about 0.8°C per decade.
June is about average for rainfall in Gravenhurst, averaging 55 mm of rainfall. The wettest June on record was 1982 with 119 mm, while the driest was 1995 at 18 mm.
Relative humidity in Gravenhurst during June averages 71%. The most humid June was 2002 at 82%, and the least humid was 1988 at 60%.
June receives about 6 kWh/m²/day of solar energy in Gravenhurst. The sunniest June was 2020 at 7.1 kWh/m²/day, and the cloudiest was 1996 at 4.8.
Average wind speed in Gravenhurst during June is 0.3 m/s. The windiest June was 2016 at 0.5 m/s, while the calmest were 2009, 2011 and 2013, 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 | 15.5°C | 16.7°C | 16.6°C | 17.5°C | 19.0°C | +3.5°C |
| Avg High | 21.4°C | 22.6°C | 22.3°C | 23.7°C | 25.2°C | +3.8°C |
| Avg Low | 9.6°C | 10.8°C | 10.9°C | 11.2°C | 12.7°C | +3.1°C |
| Avg Rain | 64 mm | 66 mm | 56 mm | 47 mm | 36 mm | -28 mm |
June temperatures in Gravenhurst have risen by about 4.2°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 1.3°C (1983) to a record high of 33.4°C (2022).
Rainfall in June is about average for rainfall, averaging 55 mm, with a wettest year of 119 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.9°C per decade while lows rose 0.6°C per decade, widening the gap between day and night.
One of the best times to visit Gravenhurst
June is one of the best times to visit Gravenhurst. Expect days averaging 22.9°C and nights around 10.9°C (mean 16.9°C) — warmer than Gravenhurst's yearly average — with moderate rainfall (55 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 | 25.1°C | 18.7°C | 12.4°C | 32.7°C | 4.0°C | 26 mm | 65% | 0.4 m/s | 5.8 |
| 2024 | 25.1°C | 19.3°C | 13.5°C | 32.8°C | 6.1°C | 35 mm | 66% | 0.4 m/s | 5.2 |
| 2023 | 25.6°C | 19.3°C | 13.0°C | 32.9°C | 8.2°C | 59 mm | 63% | 0.4 m/s | 5.8 |
| 2022 | 24.1°C | 17.4°C | 10.8°C | 33.4°C | 6.0°C | 35 mm | 65% | 0.4 m/s | 6.4 |
| 2021 | 25.5°C | 19.7°C | 13.9°C | 31.2°C | 7.6°C | 38 mm | 65% | 0.4 m/s | 6 |
| 2020 | 26.0°C | 19.3°C | 12.5°C | 33.0°C | 3.7°C | 22 mm | 61% | 0.4 m/s | 7.1 |
| 2019 | 21.6°C | 15.5°C | 9.4°C | 28.2°C | 3.2°C | 81 mm | 72% | 0.4 m/s | 6.1 |
| 2018 | 24.7°C | 17.9°C | 11.2°C | 31.8°C | 6.2°C | 47 mm | 65% | 0.4 m/s | 6.2 |
| 2017 | 22.7°C | 17.2°C | 11.7°C | 27.8°C | 5.1°C | 64 mm | 74% | 0.4 m/s | 5.6 |
| 2016 | 24.7°C | 17.8°C | 11.0°C | 32.1°C | 4.2°C | 21 mm | 63% | 0.5 m/s | 6.9 |
| 2015 | 22.7°C | 16.2°C | 9.8°C | 26.8°C | 4.3°C | 49 mm | 70% | 0.4 m/s | 5.8 |
| 2014 | 25.3°C | 18.3°C | 11.4°C | 30.9°C | 5.9°C | 46 mm | 68% | 0.4 m/s | 6 |
| 2013 | 23.1°C | 17.6°C | 12.0°C | 30.1°C | 5.3°C | 27 mm | 68% | 0.3 m/s | 5.8 |
| 2012 | 25.0°C | 19.0°C | 13.0°C | 32.2°C | 7.8°C | 38 mm | 66% | 0.4 m/s | 6.1 |
| 2011 | 23.6°C | 17.3°C | 10.9°C | 29.2°C | 4.9°C | 34 mm | 69% | 0.3 m/s | 6 |
| 2010 | 23.4°C | 17.7°C | 12.0°C | 29.1°C | 6.8°C | 64 mm | 70% | 0.4 m/s | 5.4 |
| 2009 | 21.7°C | 15.8°C | 9.8°C | 31.9°C | 2.1°C | 41 mm | 73% | 0.3 m/s | 5.7 |
| 2008 | 22.4°C | 17.0°C | 11.5°C | 29.0°C | 5.8°C | 45 mm | 78% | 0.3 m/s | 5.5 |
| 2007 | 24.6°C | 18.2°C | 11.8°C | 32.4°C | 4.4°C | 29 mm | 66% | 0.3 m/s | 6.7 |
| 2006 | 23.8°C | 18.0°C | 12.1°C | 29.3°C | 5.2°C | 43 mm | 68% | 0.3 m/s | 5.9 |
| 2005 🔥 | 26.4°C | 20.5°C | 14.7°C | 32.7°C | 8.8°C | 55 mm | 69% | 0.3 m/s | 6 |
| 2004 | 19.8°C | 14.0°C | 8.3°C | 26.4°C | 3.2°C | 56 mm | 79% | 0.3 m/s | 6.5 |
| 2003 | 20.8°C | 15.0°C | 9.2°C | 28.5°C | 2.4°C | 68 mm | 79% | 0.3 m/s | 6.3 |
| 2002 | 21.0°C | 16.1°C | 11.1°C | 27.2°C | 2.2°C | 73 mm | 82% | 0.3 m/s | 5.6 |
| 2001 | 22.1°C | 16.5°C | 11.0°C | 28.3°C | 6.1°C | 78 mm | 79% | 0.3 m/s | 6.2 |
| 2000 | 20.6°C | 15.1°C | 9.7°C | 26.0°C | 4.8°C | 73 mm | 80% | 0.3 m/s | 5.1 |
| 1999 | 23.7°C | 18.1°C | 12.6°C | 30.3°C | 6.7°C | 117 mm | 72% | 0.3 m/s | 6.1 |
| 1998 | 22.6°C | 17.1°C | 11.6°C | 31.4°C | 2.5°C | 95 mm | 73% | 0.3 m/s | 5.8 |
| 1997 | 22.0°C | 15.9°C | 9.8°C | 27.6°C | 3.9°C | 51 mm | 77% | 0.3 m/s | 6.6 |
| 1996 | 21.3°C | 16.2°C | 11.1°C | 25.8°C | 5.0°C | 74 mm | 80% | 0.3 m/s | 4.8 |
| 1995 | 25.8°C | 19.0°C | 12.2°C | 32.6°C | 5.8°C | 18 mm | 63% | 0.3 m/s | 6.1 |
| 1994 | 22.5°C | 16.6°C | 10.6°C | 33.0°C | 2.4°C | 73 mm | 75% | 0.3 m/s | 5.7 |
| 1993 | 20.8°C | 15.1°C | 9.3°C | 26.9°C | 2.3°C | 87 mm | 76% | 0.3 m/s | 5.9 |
| 1992 | 21.3°C | 15.0°C | 8.8°C | 27.8°C | 3.5°C | 34 mm | 67% | 0.3 m/s | 6.4 |
| 1991 | 23.6°C | 17.7°C | 11.8°C | 29.8°C | 3.9°C | 40 mm | 69% | 0.4 m/s | 6.8 |
| 1990 | 22.6°C | 16.7°C | 10.7°C | 29.6°C | 3.7°C | 68 mm | 73% | 0.3 m/s | 5.4 |
| 1989 | 22.9°C | 17.1°C | 11.3°C | 30.7°C | 3.7°C | 76 mm | 73% | 0.3 m/s | 5.4 |
| 1988 | 22.7°C | 15.9°C | 9.0°C | 31.0°C | 2.4°C | 42 mm | 60% | 0.4 m/s | 6.8 |
| 1987 | 24.6°C | 18.0°C | 11.4°C | 32.7°C | 3.7°C | 37 mm | 65% | 0.3 m/s | 6 |
| 1986 | 21.0°C | 14.6°C | 8.3°C | 28.8°C | 1.6°C | 56 mm | 69% | 0.3 m/s | 6.4 |
| 1985 ❄️ | 18.3°C | 13.0°C | 7.7°C | 24.3°C | 1.9°C | 59 mm | 79% | 0.3 m/s | 6.4 |
| 1984 | 21.4°C | 15.7°C | 10.0°C | 27.0°C | 4.8°C | 54 mm | 76% | 0.3 m/s | 5.8 |
| 1983 | 21.5°C | 15.6°C | 9.7°C | 30.8°C | 1.3°C | 19 mm | 77% | 0.3 m/s | — |
| 1982 🌧️ | 18.7°C | 13.7°C | 8.7°C | 24.4°C | 3.6°C | 119 mm | 80% | 0.3 m/s | — |
| 1981 | 21.2°C | 15.6°C | 10.0°C | 27.9°C | 2.6°C | 114 mm | 78% | 0.3 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 22.9°C with lows near 10.9°C (mean 16.9°C), based on 45 years of NASA POWER data.
June averages 55 mm of rainfall in Gravenhurst, about average for rainfall. The wettest on record was 119 mm in 1982.
The hottest June reached 33.4°C in 2022. The coldest dipped to 1.3°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 4.2°C. Daytime highs moved from 20.2°C to 25.1°C and overnight lows from 9.2°C to 12.7°C over the same span.
June is one of the warmer months of the year in Gravenhurst and about average for rainfall, so plan for around 22.9°C daytime highs and 10.9°C at night.
Not quite — June is the 10th coolest month in Gravenhurst, averaging 16.9°C.
For June in Gravenhurst, pack light layers you can adjust through the day, with typical highs of 22.9°C and lows of 10.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 71% — moderately humid.
Average wind speed in June is 0.3 m/s. The windiest June on record averaged 0.5 m/s (2016).
The wettest June on record was 1982 with 119 mm. On average, June sees 55 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 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.
