August is one of the warmer months of the year in Estevan, with average highs near 27.7°C and lows around 13.7°C (mean 20.7°C). It is a relatively wet time of year, averaging 47 mm of rainfall and 54% relative humidity across the period.
August is one of the warmer months of the year in Estevan. Across 45 years of records, the warmest August in Estevan was 1983 — when the month averaged 24.5°C — while the coldest was 2004 at 16.9°C. Typical August days reach 27.7°C with nights near 13.7°C. The long-term August temperature trend is broadly flat.
August is a relatively wet time of year in Estevan, averaging 47 mm of rainfall. The wettest August on record was 1985 with 115 mm, while the driest was 2001 at 7 mm.
Relative humidity in Estevan during August averages 54%. The most humid August was 2011 at 66%, and the least humid were 1984 and 1988 at 44%.
August receives about 5.3 kWh/m²/day of solar energy in Estevan. The sunniest August was 2001 at 6.1 kWh/m²/day, and the cloudiest was 2021 at 4.5.
Average wind speed in Estevan during August is 3 m/s. The windiest August was 1995 at 3.8 m/s, while the calmest was 2013 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 20.7°C | 20.8°C | 20.2°C | 20.6°C | 21.7°C | +1°C |
| Avg High | 27.9°C | 27.8°C | 27.1°C | 27.4°C | 28.5°C | +0.6°C |
| Avg Low | 13.6°C | 13.7°C | 13.2°C | 13.7°C | 14.9°C | +1.3°C |
| Avg Rain | 45 mm | 46 mm | 52 mm | 46 mm | 44 mm | -1 mm |
August temperatures in Estevan have stayed relatively stable across the record.
August has ranged from a record low of 3.6°C (2004) to a record high of 40.7°C (2018).
Rainfall in August is a relatively wet time of year, averaging 47 mm, with a wettest year of 115 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
One of the best times to visit Estevan
August is one of the best times to visit Estevan. Expect days averaging 27.7°C and nights around 13.7°C (mean 20.7°C) — warmer than Estevan's yearly average — with moderate rainfall (47 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 | 27.5°C | 21.2°C | 14.8°C | 36.8°C | 8.5°C | 61 mm | 62% | 2.9 m/s | 5.2 |
| 2024 | 28.3°C | 21.8°C | 15.3°C | 36.9°C | 8.1°C | 38 mm | 53% | 3 m/s | 5 |
| 2023 | 27.6°C | 21.1°C | 14.6°C | 34.3°C | 11.1°C | 65 mm | 59% | 2.8 m/s | 4.7 |
| 2022 | 29.8°C | 22.7°C | 15.6°C | 37.4°C | 11.2°C | 38 mm | 55% | 2.9 m/s | 5.8 |
| 2021 | 27.9°C | 21.1°C | 14.4°C | 38.1°C | 8.3°C | 40 mm | 55% | 3.4 m/s | 4.5 |
| 2020 | 30.0°C | 22.3°C | 14.7°C | 38.0°C | 7.0°C | 21 mm | 45% | 3 m/s | 6 |
| 2019 | 26.8°C | 20.0°C | 13.3°C | 35.2°C | 8.2°C | 51 mm | 56% | 3.1 m/s | 5.3 |
| 2018 | 28.7°C | 21.3°C | 14.0°C | 40.7°C | 6.8°C | 16 mm | 49% | 2.6 m/s | 5.2 |
| 2017 | 26.7°C | 19.8°C | 12.9°C | 32.6°C | 8.7°C | 44 mm | 53% | 2.6 m/s | 5.4 |
| 2016 | 27.8°C | 20.8°C | 13.7°C | 34.8°C | 8.8°C | 28 mm | 52% | 3.2 m/s | 5.6 |
| 2015 | 28.5°C | 21.3°C | 14.0°C | 39.1°C | 4.8°C | 34 mm | 52% | 2.9 m/s | 5.2 |
| 2014 | 26.4°C | 20.2°C | 14.0°C | 33.9°C | 6.4°C | 92 mm | 65% | 2.8 m/s | 4.9 |
| 2013 | 27.2°C | 20.6°C | 14.0°C | 33.8°C | 7.6°C | 37 mm | 61% | 2.3 m/s | 5.3 |
| 2012 | 28.6°C | 21.3°C | 14.1°C | 36.2°C | 8.7°C | 21 mm | 49% | 3 m/s | 5.4 |
| 2011 | 26.6°C | 20.2°C | 13.7°C | 31.5°C | 9.0°C | 55 mm | 66% | 2.7 m/s | 5.8 |
| 2010 | 26.2°C | 20.0°C | 13.7°C | 32.9°C | 9.0°C | 81 mm | 63% | 3.1 m/s | 5.2 |
| 2009 | 24.9°C | 18.5°C | 12.1°C | 33.3°C | 7.7°C | 107 mm | 63% | 2.8 m/s | 5.1 |
| 2008 | 27.7°C | 20.7°C | 13.6°C | 35.8°C | 6.1°C | 78 mm | 54% | 3.2 m/s | 5.7 |
| 2007 | 26.5°C | 19.6°C | 12.7°C | 34.3°C | 5.8°C | 38 mm | 56% | 3.3 m/s | 5.1 |
| 2006 | 28.2°C | 21.0°C | 13.8°C | 37.2°C | 10.1°C | 44 mm | 51% | 2.9 m/s | 5.6 |
| 2005 | 26.3°C | 19.4°C | 12.4°C | 35.7°C | 6.7°C | 44 mm | 55% | 3.6 m/s | 5.3 |
| 2004 ❄️ | 23.2°C | 16.9°C | 10.6°C | 31.5°C | 3.6°C | 46 mm | 62% | 2.9 m/s | 4.6 |
| 2003 | 31.2°C | 23.6°C | 16.0°C | 38.7°C | 9.5°C | 20 mm | 45% | 3.1 m/s | 5.7 |
| 2002 | 25.0°C | 18.6°C | 12.3°C | 30.6°C | 4.9°C | 87 mm | 61% | 3.2 m/s | 4.7 |
| 2001 | 29.8°C | 22.2°C | 14.6°C | 37.2°C | 10.6°C | 7 mm | 47% | 2.9 m/s | 6.1 |
| 2000 | 27.9°C | 21.0°C | 14.1°C | 37.7°C | 7.5°C | 46 mm | 52% | 3.2 m/s | 5.1 |
| 1999 | 27.9°C | 20.9°C | 13.8°C | 33.9°C | 11.4°C | 30 mm | 54% | 3 m/s | 5.6 |
| 1998 | 29.6°C | 22.6°C | 15.6°C | 35.7°C | 12.0°C | 45 mm | 53% | 2.7 m/s | 5.8 |
| 1997 | 28.2°C | 21.1°C | 14.0°C | 34.9°C | 7.6°C | 45 mm | 50% | 2.7 m/s | 5.6 |
| 1996 | 29.8°C | 22.0°C | 14.3°C | 36.5°C | 9.2°C | 16 mm | 47% | 3.1 m/s | 5.9 |
| 1995 | 28.2°C | 20.9°C | 13.6°C | 38.1°C | 9.2°C | 55 mm | 54% | 3.8 m/s | 5.2 |
| 1994 | 27.0°C | 20.1°C | 13.2°C | 34.0°C | 5.0°C | 31 mm | 53% | 2.7 m/s | 5.3 |
| 1993 | 24.2°C | 18.0°C | 11.7°C | 31.9°C | 6.6°C | 87 mm | 66% | 3.1 m/s | 5.2 |
| 1992 | 25.3°C | 18.3°C | 11.3°C | 35.7°C | 5.2°C | 48 mm | 52% | 2.7 m/s | 5.2 |
| 1991 | 29.2°C | 22.3°C | 15.3°C | 34.6°C | 10.2°C | 46 mm | 54% | 3.2 m/s | 5.3 |
| 1990 | 28.9°C | 21.5°C | 14.1°C | 36.7°C | 9.5°C | 60 mm | 50% | 2.9 m/s | 5.4 |
| 1989 | 28.7°C | 21.5°C | 14.3°C | 38.3°C | 7.9°C | 40 mm | 45% | 3 m/s | 5.4 |
| 1988 | 28.5°C | 21.1°C | 13.7°C | 37.7°C | 6.2°C | 27 mm | 44% | 3.3 m/s | 5.1 |
| 1987 | 24.0°C | 17.6°C | 11.3°C | 35.2°C | 5.9°C | 20 mm | 55% | 3 m/s | 5.1 |
| 1986 | 26.9°C | 19.4°C | 11.9°C | 34.6°C | 5.7°C | 23 mm | 49% | 2.8 m/s | 5.8 |
| 1985 🌧️ | 23.3°C | 17.1°C | 10.8°C | 32.2°C | 5.4°C | 115 mm | 63% | 3.5 m/s | 4.7 |
| 1984 | 30.5°C | 23.0°C | 15.6°C | 37.1°C | 7.7°C | 39 mm | 44% | 3.1 m/s | 5.7 |
| 1983 🔥 | 32.3°C | 24.5°C | 16.7°C | 40.1°C | 12.0°C | 49 mm | 47% | 2.9 m/s | — |
| 1982 | 27.3°C | 20.1°C | 12.9°C | 35.2°C | 4.3°C | 41 mm | 52% | 3 m/s | — |
| 1981 | 29.4°C | 22.2°C | 15.0°C | 34.5°C | 8.8°C | 48 mm | 53% | 2.8 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 27.7°C with lows near 13.7°C (mean 20.7°C), based on 45 years of NASA POWER data.
August averages 47 mm of rainfall in Estevan, a relatively wet time of year. The wettest on record was 115 mm in 1985.
The hottest August reached 40.7°C in 2018. The coldest dipped to 3.6°C in 2004.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 0.2°C — but days and nights have moved in opposite directions. Overnight lows rose from 14.2°C to 14.9°C while daytime highs eased from 28.6°C to 28.2°C, narrowing the gap between day and night.
August is one of the warmer months of the year in Estevan and a relatively wet time of year, so plan for around 27.7°C daytime highs and 13.7°C at night.
Not quite — August is the 11th coolest month in Estevan, averaging 20.7°C.
For August in Estevan, pack light layers you can adjust through the day, with typical highs of 27.7°C and lows of 13.7°C.
Relative humidity in August averages 54% — relatively dry.
Average wind speed in August is 3 m/s. The windiest August on record averaged 3.8 m/s (1995).
The wettest August on record was 1985 with 115 mm. On average, August sees 47 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 Estevan 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.
