August is one of the warmer months of the year in Medicine Hat, with average highs near 26.8°C and lows around 13.1°C (mean 20°C). It is about average for rainfall, averaging 39 mm of rainfall and 50% relative humidity across the period.
August is one of the warmer months of the year in Medicine Hat. Across 45 years of records, the warmest August in Medicine Hat was 2022 — when the month averaged 23.2°C — while the coldest was 1987 at 15.7°C. Typical August days reach 26.8°C with nights near 13.1°C. The long-term trend is warming, about 0.2°C per decade.
August is about average for rainfall in Medicine Hat, averaging 39 mm of rainfall. The wettest August on record was 2004 with 99 mm, while the driest was 2001 at 4 mm.
Relative humidity in Medicine Hat during August averages 50%. The most humid August was 1993 at 63%, and the least humid was 2001 at 35%.
August receives about 5.5 kWh/m²/day of solar energy in Medicine Hat. The sunniest August was 2001 at 6.1 kWh/m²/day, and the cloudiest was 2021 at 4.7.
Average wind speed in Medicine Hat during August is 2.8 m/s. The windiest Augusts were 1988, 1995 and 2008, among others at 3.3 m/s, while the calmest were 2002 and 2025 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 19.5°C | 20.0°C | 19.7°C | 19.9°C | 21.2°C | +1.7°C |
| Avg High | 26.4°C | 26.8°C | 26.6°C | 26.7°C | 27.9°C | +1.5°C |
| Avg Low | 12.6°C | 13.1°C | 12.8°C | 13.2°C | 14.5°C | +1.9°C |
| Avg Rain | 39 mm | 37 mm | 41 mm | 38 mm | 39 mm | 0 mm |
August temperatures in Medicine Hat have risen by about 0.7°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 0.9°C (1992) to a record high of 38.6°C (2018).
Rainfall in August is about average for rainfall, averaging 39 mm, with a wettest year of 99 mm.
One of the best times to visit Medicine Hat
August is one of the best times to visit Medicine Hat. Expect days averaging 26.8°C and nights around 13.1°C (mean 20°C) — warmer than Medicine Hat's yearly average — with moderate rainfall (39 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 | 26.6°C | 20.4°C | 14.3°C | 32.2°C | 9.8°C | 67 mm | 61% | 2.3 m/s | 5.6 |
| 2024 | 27.4°C | 20.9°C | 14.4°C | 33.7°C | 9.6°C | 42 mm | 52% | 2.7 m/s | 5.4 |
| 2023 | 28.1°C | 21.4°C | 14.6°C | 35.6°C | 8.8°C | 36 mm | 49% | 2.6 m/s | 5.5 |
| 2022 🔥 | 30.4°C | 23.2°C | 16.0°C | 35.2°C | 8.2°C | 22 mm | 46% | 3 m/s | 6 |
| 2021 | 26.3°C | 19.9°C | 13.6°C | 36.5°C | 5.4°C | 45 mm | 52% | 2.8 m/s | 4.7 |
| 2020 | 28.3°C | 21.1°C | 13.9°C | 34.8°C | 7.0°C | 21 mm | 45% | 2.9 m/s | 6 |
| 2019 | 25.5°C | 19.1°C | 12.7°C | 35.7°C | 6.9°C | 49 mm | 56% | 2.7 m/s | 5.1 |
| 2018 | 27.2°C | 20.2°C | 13.2°C | 38.6°C | 4.7°C | 23 mm | 48% | 2.6 m/s | 5.2 |
| 2017 | 27.0°C | 20.0°C | 13.0°C | 34.5°C | 9.6°C | 34 mm | 49% | 2.6 m/s | 5.5 |
| 2016 | 25.4°C | 19.0°C | 12.5°C | 32.4°C | 7.2°C | 56 mm | 58% | 2.9 m/s | 5.3 |
| 2015 | 27.7°C | 20.5°C | 13.4°C | 37.2°C | 5.3°C | 27 mm | 48% | 3 m/s | 5.1 |
| 2014 | 25.8°C | 19.8°C | 13.8°C | 33.2°C | 6.0°C | 57 mm | 60% | 2.6 m/s | 5.1 |
| 2013 | 27.3°C | 20.7°C | 14.0°C | 33.4°C | 10.2°C | 33 mm | 55% | 2.4 m/s | 5.4 |
| 2012 | 28.4°C | 21.0°C | 13.7°C | 35.7°C | 7.6°C | 25 mm | 45% | 2.7 m/s | 5.8 |
| 2011 | 28.0°C | 20.9°C | 13.8°C | 33.3°C | 8.1°C | 18 mm | 48% | 2.7 m/s | 6 |
| 2010 | 24.2°C | 18.1°C | 12.1°C | 35.0°C | 5.2°C | 58 mm | 59% | 2.7 m/s | 5.2 |
| 2009 | 25.3°C | 18.7°C | 12.1°C | 32.9°C | 6.6°C | 43 mm | 55% | 2.8 m/s | 5.2 |
| 2008 | 27.1°C | 20.1°C | 13.1°C | 35.8°C | 6.4°C | 46 mm | 48% | 3.3 m/s | 5.5 |
| 2007 | 26.9°C | 19.8°C | 12.6°C | 35.1°C | 5.5°C | 24 mm | 47% | 2.9 m/s | 5.6 |
| 2006 | 27.2°C | 19.9°C | 12.6°C | 35.1°C | 8.4°C | 12 mm | 45% | 2.7 m/s | 5.9 |
| 2005 | 24.3°C | 17.8°C | 11.2°C | 33.8°C | 5.1°C | 69 mm | 56% | 2.8 m/s | 5.2 |
| 2004 🌧️ | 24.3°C | 18.0°C | 11.7°C | 31.9°C | 7.5°C | 99 mm | 61% | 2.5 m/s | 5 |
| 2003 | 30.3°C | 22.9°C | 15.5°C | 36.9°C | 7.8°C | 14 mm | 43% | 2.9 m/s | 5.5 |
| 2002 | 23.0°C | 16.9°C | 10.8°C | 29.5°C | 5.1°C | 80 mm | 60% | 2.3 m/s | 5 |
| 2001 | 30.2°C | 22.5°C | 14.8°C | 37.6°C | 10.8°C | 4 mm | 35% | 2.9 m/s | 6.1 |
| 2000 | 27.5°C | 20.4°C | 13.2°C | 36.0°C | 5.6°C | 16 mm | 43% | 3 m/s | 5.8 |
| 1999 | 27.7°C | 20.9°C | 14.0°C | 34.9°C | 9.1°C | 30 mm | 49% | 3.1 m/s | 5.3 |
| 1998 | 29.5°C | 22.4°C | 15.3°C | 35.2°C | 10.7°C | 14 mm | 44% | 2.6 m/s | 6 |
| 1997 | 27.0°C | 20.1°C | 13.1°C | 36.0°C | 6.7°C | 31 mm | 48% | 2.7 m/s | 5.5 |
| 1996 | 28.1°C | 20.7°C | 13.3°C | 33.5°C | 8.6°C | 10 mm | 43% | 3.1 m/s | 5.9 |
| 1995 | 25.0°C | 18.1°C | 11.1°C | 32.2°C | 7.5°C | 58 mm | 53% | 3.3 m/s | 5.5 |
| 1994 | 27.5°C | 20.6°C | 13.7°C | 34.8°C | 4.4°C | 16 mm | 48% | 2.5 m/s | 5.4 |
| 1993 | 23.0°C | 16.8°C | 10.6°C | 30.6°C | 4.2°C | 86 mm | 63% | 2.8 m/s | 5.3 |
| 1992 | 23.9°C | 17.6°C | 11.2°C | 34.1°C | 0.9°C | 45 mm | 51% | 2.7 m/s | 5.6 |
| 1991 | 28.8°C | 21.9°C | 15.0°C | 36.2°C | 9.3°C | 54 mm | 51% | 2.6 m/s | 5.8 |
| 1990 | 27.8°C | 21.0°C | 14.1°C | 36.0°C | 8.3°C | 26 mm | 49% | 2.9 m/s | 5.7 |
| 1989 | 24.4°C | 18.8°C | 13.1°C | 32.6°C | 7.1°C | 76 mm | 55% | 2.8 m/s | 5 |
| 1988 | 26.5°C | 19.1°C | 11.7°C | 33.2°C | 6.8°C | 36 mm | 46% | 3.3 m/s | 5.4 |
| 1987 ❄️ | 21.9°C | 15.7°C | 9.6°C | 29.2°C | 5.4°C | 66 mm | 60% | 2.8 m/s | 5.1 |
| 1986 | 27.1°C | 19.8°C | 12.5°C | 33.0°C | 7.2°C | 17 mm | 47% | 2.5 m/s | 5.8 |
| 1985 | 23.7°C | 17.0°C | 10.2°C | 32.4°C | 4.6°C | 54 mm | 52% | 2.9 m/s | 5.2 |
| 1984 | 29.1°C | 21.8°C | 14.5°C | 37.2°C | 5.7°C | 23 mm | 42% | 3.3 m/s | 5.7 |
| 1983 | 29.9°C | 22.5°C | 15.0°C | 37.2°C | 6.7°C | 21 mm | 47% | 2.9 m/s | — |
| 1982 | 25.7°C | 18.8°C | 11.9°C | 32.0°C | 5.7°C | 43 mm | 52% | 3.1 m/s | — |
| 1981 | 29.5°C | 22.2°C | 14.8°C | 33.9°C | 5.7°C | 16 mm | 46% | 2.5 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 26.8°C with lows near 13.1°C (mean 20°C), based on 45 years of NASA POWER data.
August averages 39 mm of rainfall in Medicine Hat, about average for rainfall. The wettest on record was 99 mm in 2004.
The hottest August reached 38.6°C in 2018. The coldest dipped to 0.9°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 0.7°C. Daytime highs moved from 27.6°C to 27.8°C and overnight lows from 13.3°C to 14.6°C over the same span.
August is one of the warmer months of the year in Medicine Hat and about average for rainfall, so plan for around 26.8°C daytime highs and 13.1°C at night.
Not quite — August is the 11th coolest month in Medicine Hat, averaging 20°C.
For August in Medicine Hat, pack light layers you can adjust through the day, with typical highs of 26.8°C and lows of 13.1°C.
Relative humidity in August averages 50% — relatively dry.
Average wind speed in August is 2.8 m/s. The windiest August on record averaged 3.3 m/s (1984).
The wettest August on record was 2004 with 99 mm. On average, August sees 39 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 Medicine Hat behaves each August, 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 August specifically, along with year-by-year records and how the month has changed over the decades.
