July is one of the warmer months of the year in Caledon, with average highs near 27°C and lows around 15°C (mean 21°C). It is about average for rainfall, averaging 66 mm of rainfall and 66% relative humidity across the period.
July is one of the warmer months of the year in Caledon. Across 45 years of records, the warmest July in Caledon was 2020 — when the month averaged 24.1°C — while the coldest was 2009 at 17.8°C. Typical July days reach 27°C with nights near 15°C. The long-term trend is warming, about 0.2°C per decade.
July is about average for rainfall in Caledon, averaging 66 mm of rainfall. The wettest July on record was 2008 with 114 mm, while the driest was 1989 at 24 mm.
Relative humidity in Caledon during July averages 66%. The most humid July was 2000 at 76%, and the least humid was 1989 at 54%.
July receives about 6 kWh/m²/day of solar energy in Caledon. The sunniest Julys were 2002, 2011 and 2018 at 6.5 kWh/m²/day, and the cloudiest was 1984 at 5.1.
Average wind speed in Caledon during July is 2.3 m/s. The windiest July was 1999 at 2.7 m/s, while the calmest were 1989 and 2024 at 1.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 21.5°C | 20.5°C | 20.2°C | 21.4°C | 21.9°C | +0.4°C |
| Avg High | 27.8°C | 26.5°C | 25.9°C | 27.4°C | 27.9°C | +0.1°C |
| Avg Low | 15.1°C | 14.4°C | 14.5°C | 15.5°C | 15.9°C | +0.8°C |
| Avg Rain | 47 mm | 69 mm | 77 mm | 66 mm | 73 mm | +27 mm |
July temperatures in Caledon have risen by about 1°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 6.7°C (1992) to a record high of 37.5°C (1988).
Rainfall in July is about average for rainfall, averaging 66 mm, with a wettest year of 114 mm.
One of the best times to visit Caledon
July is one of the best times to visit Caledon. Expect days averaging 27°C and nights around 15°C (mean 21°C) — warmer than Caledon's yearly average — with moderate rainfall (66 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 | 30.0°C | 23.3°C | 16.6°C | 35.1°C | 11.3°C | 53 mm | 61% | 2.1 m/s | 6.4 |
| 2024 | 27.5°C | 21.6°C | 15.8°C | 31.7°C | 9.2°C | 98 mm | 68% | 1.8 m/s | 6 |
| 2023 | 26.6°C | 20.9°C | 15.3°C | 31.8°C | 12.0°C | 105 mm | 70% | 2 m/s | 5.7 |
| 2022 | 27.4°C | 21.1°C | 14.8°C | 32.3°C | 10.1°C | 47 mm | 62% | 2.4 m/s | 6.1 |
| 2021 | 25.9°C | 20.5°C | 15.0°C | 31.6°C | 9.5°C | 87 mm | 70% | 2.2 m/s | 5.2 |
| 2020 🔥 | 30.2°C | 24.1°C | 18.0°C | 34.9°C | 13.7°C | 51 mm | 64% | 2.2 m/s | 6.4 |
| 2019 | 28.4°C | 22.3°C | 16.2°C | 32.2°C | 11.7°C | 52 mm | 68% | 2.1 m/s | 6.3 |
| 2018 | 28.5°C | 22.4°C | 16.2°C | 33.9°C | 10.5°C | 59 mm | 63% | 2.2 m/s | 6.5 |
| 2017 | 25.4°C | 19.9°C | 14.5°C | 28.8°C | 10.9°C | 69 mm | 75% | 2.1 m/s | 5.6 |
| 2016 | 28.7°C | 22.5°C | 16.3°C | 34.4°C | 10.8°C | 45 mm | 61% | 2.5 m/s | 6.2 |
| 2015 | 26.9°C | 20.4°C | 13.9°C | 34.0°C | 8.6°C | 33 mm | 65% | 2.1 m/s | 6.4 |
| 2014 | 23.9°C | 18.3°C | 12.7°C | 30.6°C | 9.0°C | 105 mm | 72% | 2.3 m/s | 5.8 |
| 2013 | 25.9°C | 20.8°C | 15.7°C | 32.4°C | 9.7°C | 89 mm | 74% | 1.9 m/s | 5.8 |
| 2012 | 29.5°C | 23.1°C | 16.7°C | 34.8°C | 13.0°C | 59 mm | 59% | 2.1 m/s | 6.2 |
| 2011 | 29.0°C | 22.7°C | 16.4°C | 34.4°C | 11.4°C | 52 mm | 65% | 2.1 m/s | 6.5 |
| 2010 | 27.8°C | 21.9°C | 16.1°C | 33.2°C | 8.6°C | 96 mm | 68% | 2.2 m/s | 6.2 |
| 2009 ❄️ | 23.1°C | 17.8°C | 12.5°C | 26.2°C | 8.6°C | 71 mm | 73% | 2.2 m/s | 5.4 |
| 2008 🌧️ | 25.9°C | 20.3°C | 14.7°C | 30.4°C | 8.9°C | 114 mm | 72% | 2.2 m/s | 5.9 |
| 2007 | 25.9°C | 20.0°C | 14.1°C | 31.8°C | 8.2°C | 69 mm | 63% | 2.1 m/s | 5.8 |
| 2006 | 27.9°C | 22.2°C | 16.6°C | 34.2°C | 10.7°C | 113 mm | 70% | 2.4 m/s | 5.8 |
| 2005 | 29.2°C | 22.7°C | 16.3°C | 35.6°C | 9.8°C | 67 mm | 61% | 2.1 m/s | 6.2 |
| 2004 | 24.5°C | 19.0°C | 13.6°C | 30.7°C | 9.4°C | 86 mm | 76% | 2.1 m/s | 5.2 |
| 2003 | 25.9°C | 20.1°C | 14.3°C | 31.6°C | 10.2°C | 65 mm | 68% | 2.4 m/s | 5.5 |
| 2002 | 28.8°C | 22.4°C | 15.9°C | 32.4°C | 10.8°C | 47 mm | 63% | 2.3 m/s | 6.5 |
| 2001 | 24.9°C | 19.2°C | 13.4°C | 32.2°C | 7.1°C | 50 mm | 66% | 2.5 m/s | 6.1 |
| 2000 | 23.0°C | 18.1°C | 13.2°C | 27.0°C | 8.7°C | 89 mm | 76% | 2 m/s | 5.6 |
| 1999 | 29.3°C | 22.9°C | 16.5°C | 33.7°C | 10.7°C | 47 mm | 61% | 2.7 m/s | 6.2 |
| 1998 | 26.8°C | 20.8°C | 14.7°C | 33.4°C | 11.3°C | 48 mm | 62% | 2.4 m/s | 6 |
| 1997 | 25.9°C | 19.8°C | 13.6°C | 30.9°C | 8.1°C | 51 mm | 67% | 2.4 m/s | 6.1 |
| 1996 | 24.7°C | 18.8°C | 12.9°C | 28.3°C | 9.2°C | 87 mm | 68% | 2.4 m/s | 6.2 |
| 1995 | 27.8°C | 21.7°C | 15.5°C | 35.6°C | 9.3°C | 46 mm | 63% | 2.5 m/s | 5.7 |
| 1994 | 26.2°C | 20.4°C | 14.6°C | 30.5°C | 8.7°C | 74 mm | 69% | 2.1 m/s | 5.9 |
| 1993 | 27.0°C | 21.1°C | 15.2°C | 32.2°C | 10.3°C | 64 mm | 67% | 2.5 m/s | 6.1 |
| 1992 | 24.0°C | 18.1°C | 12.1°C | 28.3°C | 6.7°C | 101 mm | 68% | 2.4 m/s | 5.5 |
| 1991 | 26.9°C | 20.8°C | 14.8°C | 33.4°C | 10.3°C | 110 mm | 64% | 2.3 m/s | 6.2 |
| 1990 | 26.6°C | 20.5°C | 14.4°C | 32.8°C | 9.8°C | 58 mm | 62% | 2.4 m/s | 5.7 |
| 1989 | 29.0°C | 22.5°C | 16.0°C | 34.4°C | 9.5°C | 24 mm | 54% | 1.8 m/s | 6.4 |
| 1988 | 30.4°C | 23.6°C | 16.8°C | 37.5°C | 10.2°C | 62 mm | 55% | 2 m/s | 5.8 |
| 1987 | 29.7°C | 23.2°C | 16.7°C | 34.1°C | 10.8°C | 34 mm | 58% | 2.4 m/s | 6.1 |
| 1986 | 27.8°C | 21.4°C | 15.1°C | 33.2°C | 8.4°C | 73 mm | 64% | 2.4 m/s | 6 |
| 1985 | 25.7°C | 19.5°C | 13.4°C | 30.9°C | 9.1°C | 41 mm | 63% | 2.6 m/s | 6.3 |
| 1984 | 26.0°C | 19.7°C | 13.4°C | 31.7°C | 7.0°C | 53 mm | 65% | 2.3 m/s | 5.1 |
| 1983 | 27.8°C | 21.8°C | 15.8°C | 32.5°C | 7.4°C | 42 mm | 65% | 2.5 m/s | — |
| 1982 | 26.3°C | 20.3°C | 14.2°C | 31.2°C | 7.5°C | 39 mm | 66% | 2.3 m/s | — |
| 1981 | 27.5°C | 21.2°C | 14.9°C | 32.7°C | 9.6°C | 55 mm | 62% | 2.4 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 27°C with lows near 15°C (mean 21°C), based on 45 years of NASA POWER data.
July averages 66 mm of rainfall in Caledon, about average for rainfall. The wettest on record was 114 mm in 2008.
The hottest July reached 37.5°C in 1988. The coldest dipped to 6.7°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1°C. Daytime highs moved from 26.7°C to 27.5°C and overnight lows from 14.3°C to 15.5°C over the same span.
July is one of the warmer months of the year in Caledon and about average for rainfall, so plan for around 27°C daytime highs and 15°C at night.
Not quite — July is the 12th coolest month in Caledon, averaging 21°C.
For July in Caledon, pack light layers you can adjust through the day, with typical highs of 27°C and lows of 15°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 66% — moderately humid.
Average wind speed in July is 2.3 m/s. The windiest July on record averaged 2.7 m/s (1999).
The wettest July on record was 2008 with 114 mm. On average, July sees 66 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 Caledon 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.
