July is one of the warmer months of the year in Charlottetown, with average highs near 21.9°C and lows around 15.7°C (mean 18.8°C). It is about average for rainfall, averaging 76 mm of rainfall and 81% relative humidity across the period.
July is one of the warmer months of the year in Charlottetown. Across 45 years of records, the warmest July in Charlottetown was 2023 — when the month averaged 21.3°C — while the coldest was 1992 at 16.3°C. Typical July days reach 21.9°C with nights near 15.7°C. The long-term trend is warming, about 0.5°C per decade.
July is about average for rainfall in Charlottetown, averaging 76 mm of rainfall. The wettest July on record was 2020 with 137 mm, while the driest was 1987 at 18 mm.
Relative humidity in Charlottetown during July averages 81%. The most humid July was 2006 at 86%, and the least humid was 1987 at 74%.
July receives about 5.6 kWh/m²/day of solar energy in Charlottetown. The sunniest Julys were 1997 and 2017 at 6.3 kWh/m²/day, and the cloudiest were 1996 and 2021 at 4.8.
Average wind speed in Charlottetown during July is 2.5 m/s. The windiest July was 2014 at 3.1 m/s, while the calmest was 1988 at 2.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.2°C | 18.4°C | 18.3°C | 19.3°C | 20.1°C | +1.9°C |
| Avg High | 21.4°C | 21.7°C | 21.3°C | 22.3°C | 23.1°C | +1.7°C |
| Avg Low | 15.1°C | 15.1°C | 15.3°C | 16.2°C | 17.0°C | +1.9°C |
| Avg Rain | 72 mm | 65 mm | 76 mm | 71 mm | 104 mm | +32 mm |
July temperatures in Charlottetown have risen by about 1.7°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 8.4°C (1992) to a record high of 28.9°C (1990).
Rainfall in July is about average for rainfall, averaging 76 mm, with a wettest year of 137 mm.
One of the best times to visit Charlottetown
July is one of the best times to visit Charlottetown. Expect days averaging 21.9°C and nights around 15.7°C (mean 18.8°C) — warmer than Charlottetown's yearly average — with moderate rainfall (76 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 | 23.8°C | 20.3°C | 16.8°C | 28.3°C | 14.2°C | 51 mm | 77% | 2.6 m/s | 5.8 |
| 2024 | 23.6°C | 20.7°C | 17.7°C | 26.1°C | 13.9°C | 117 mm | 85% | 2.4 m/s | 5.6 |
| 2023 🔥 | 24.1°C | 21.3°C | 18.6°C | 26.8°C | 15.5°C | 134 mm | 86% | 2.2 m/s | 5.5 |
| 2022 | 22.8°C | 19.7°C | 16.6°C | 27.5°C | 13.2°C | 81 mm | 81% | 3 m/s | 6.2 |
| 2021 | 21.4°C | 18.4°C | 15.4°C | 26.3°C | 12.3°C | 107 mm | 81% | 2.8 m/s | 4.8 |
| 2020 🌧️ | 23.0°C | 20.0°C | 16.9°C | 26.9°C | 13.5°C | 137 mm | 82% | 2.3 m/s | 5.3 |
| 2019 | 21.9°C | 18.9°C | 15.9°C | 27.4°C | 11.2°C | 51 mm | 83% | 2.5 m/s | 6 |
| 2018 | 24.0°C | 20.6°C | 17.2°C | 27.1°C | 12.6°C | 44 mm | 80% | 2.6 m/s | 6.2 |
| 2017 | 21.9°C | 19.0°C | 16.0°C | 25.8°C | 13.2°C | 48 mm | 79% | 2.5 m/s | 6.3 |
| 2016 | 21.6°C | 18.5°C | 15.5°C | 26.8°C | 10.7°C | 80 mm | 82% | 2.5 m/s | 5.6 |
| 2015 | 20.8°C | 18.0°C | 15.1°C | 23.9°C | 13.3°C | 73 mm | 84% | 2.3 m/s | 5.2 |
| 2014 | 23.4°C | 20.2°C | 17.1°C | 25.8°C | 13.3°C | 56 mm | 83% | 3.1 m/s | 5.8 |
| 2013 | 23.1°C | 20.1°C | 17.1°C | 28.2°C | 14.5°C | 86 mm | 81% | 2.6 m/s | 5.6 |
| 2012 | 22.8°C | 19.5°C | 16.2°C | 26.5°C | 14.6°C | 45 mm | 77% | 2.4 m/s | 6.2 |
| 2011 | 21.2°C | 18.2°C | 15.3°C | 25.6°C | 12.5°C | 111 mm | 84% | 2.7 m/s | 5 |
| 2010 | 22.5°C | 19.7°C | 17.0°C | 25.2°C | 12.7°C | 117 mm | 84% | 2.7 m/s | 5.6 |
| 2009 | 20.7°C | 17.8°C | 15.0°C | 25.6°C | 10.8°C | 105 mm | 85% | 2.6 m/s | 5.3 |
| 2008 | 23.1°C | 20.1°C | 17.0°C | 26.6°C | 13.6°C | 55 mm | 84% | 2.3 m/s | 5.8 |
| 2007 | 21.6°C | 18.7°C | 15.7°C | 26.3°C | 10.2°C | 92 mm | 85% | 2.4 m/s | 5.4 |
| 2006 | 21.5°C | 18.4°C | 15.4°C | 25.6°C | 10.1°C | 118 mm | 86% | 2.4 m/s | 5.3 |
| 2005 | 20.7°C | 17.7°C | 14.8°C | 25.3°C | 11.6°C | 65 mm | 84% | 2.4 m/s | 5.4 |
| 2004 | 21.5°C | 18.3°C | 15.2°C | 25.7°C | 12.2°C | 50 mm | 83% | 2.3 m/s | 5 |
| 2003 | 21.8°C | 19.0°C | 16.3°C | 24.4°C | 13.9°C | 67 mm | 85% | 2.5 m/s | 5.5 |
| 2002 | 21.1°C | 17.8°C | 14.6°C | 26.4°C | 12.3°C | 72 mm | 81% | 2.4 m/s | 5.7 |
| 2001 | 20.7°C | 17.6°C | 14.5°C | 25.9°C | 11.4°C | 49 mm | 81% | 2.7 m/s | 6 |
| 2000 | 20.7°C | 17.7°C | 14.7°C | 24.5°C | 12.7°C | 90 mm | 82% | 2.7 m/s | 5.5 |
| 1999 | 23.3°C | 19.9°C | 16.5°C | 27.7°C | 13.0°C | 66 mm | 76% | 2.4 m/s | 5.8 |
| 1998 | 22.2°C | 18.9°C | 15.6°C | 25.5°C | 12.7°C | 58 mm | 80% | 2.4 m/s | 5.9 |
| 1997 | 22.3°C | 18.6°C | 14.9°C | 27.5°C | 12.4°C | 24 mm | 77% | 2.6 m/s | 6.3 |
| 1996 | 20.6°C | 17.6°C | 14.6°C | 23.9°C | 13.1°C | 126 mm | 84% | 2.8 m/s | 4.8 |
| 1995 | 22.2°C | 19.0°C | 15.7°C | 26.6°C | 11.0°C | 90 mm | 81% | 2.4 m/s | 5.6 |
| 1994 | 23.6°C | 20.3°C | 17.0°C | 27.3°C | 13.0°C | 40 mm | 78% | 2.5 m/s | 5.7 |
| 1993 | 19.7°C | 16.4°C | 13.1°C | 24.4°C | 10.2°C | 78 mm | 81% | 2.4 m/s | 5 |
| 1992 ❄️ | 19.4°C | 16.3°C | 13.1°C | 23.4°C | 8.4°C | 71 mm | 80% | 2.5 m/s | 5.9 |
| 1991 | 22.1°C | 18.6°C | 15.1°C | 26.2°C | 11.0°C | 43 mm | 75% | 2.4 m/s | 5.9 |
| 1990 | 22.0°C | 18.8°C | 15.7°C | 28.9°C | 11.7°C | 52 mm | 79% | 2.2 m/s | 5.4 |
| 1989 | 21.7°C | 18.2°C | 14.7°C | 27.5°C | 11.4°C | 56 mm | 77% | 2.7 m/s | 5.8 |
| 1988 | 21.7°C | 18.4°C | 15.2°C | 25.3°C | 10.6°C | 92 mm | 84% | 2.1 m/s | 4.9 |
| 1987 | 22.8°C | 19.3°C | 15.8°C | 27.4°C | 11.3°C | 18 mm | 74% | 2.4 m/s | 5.8 |
| 1986 | 19.5°C | 16.4°C | 13.3°C | 25.2°C | 10.2°C | 105 mm | 81% | 2.7 m/s | 5.4 |
| 1985 | 21.3°C | 18.1°C | 15.0°C | 24.6°C | 11.0°C | 36 mm | 83% | 2.6 m/s | 6.2 |
| 1984 | 22.2°C | 19.1°C | 16.0°C | 24.3°C | 13.4°C | 58 mm | 84% | 2.7 m/s | 5.2 |
| 1983 | 20.9°C | 18.1°C | 15.3°C | 25.0°C | 11.6°C | 104 mm | 83% | 2.8 m/s | — |
| 1982 | 21.9°C | 18.5°C | 15.2°C | 26.3°C | 11.0°C | 80 mm | 83% | 2.8 m/s | — |
| 1981 | 21.0°C | 18.1°C | 15.1°C | 23.7°C | 12.3°C | 102 mm | 83% | 2.6 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 21.9°C with lows near 15.7°C (mean 18.8°C), based on 45 years of NASA POWER data.
July averages 76 mm of rainfall in Charlottetown, about average for rainfall. The wettest on record was 137 mm in 2020.
The hottest July reached 28.9°C in 1990. The coldest dipped to 8.4°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.7°C. Daytime highs moved from 21.5°C to 23.1°C and overnight lows from 15.3°C to 17°C over the same span.
July is one of the warmer months of the year in Charlottetown and about average for rainfall, so plan for around 21.9°C daytime highs and 15.7°C at night.
Not quite — July is the 11th coolest month in Charlottetown, averaging 18.8°C.
For July in Charlottetown, pack light layers you can adjust through the day, with typical highs of 21.9°C and lows of 15.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 81% — quite humid.
Average wind speed in July is 2.5 m/s. The windiest July on record averaged 3.1 m/s (2014).
The wettest July on record was 2020 with 137 mm. On average, July sees 76 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 Charlottetown 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.
