August is one of the warmer months of the year in Mission, with average highs near 36.1°C and lows around 25.3°C (mean 30.7°C). It is about average for rainfall, averaging 51 mm of rainfall and 66% relative humidity across the period.
August is one of the warmer months of the year in Mission. Across 45 years of records, the warmest Augusts in Mission were 2011, 2019 and 2023 — when the month averaged 32.5°C — while the coldest were 2007 and 2008 at 29°C. Typical August days reach 36.1°C with nights near 25.3°C. The long-term trend is warming, about 0.3°C per decade.
August is about average for rainfall in Mission, averaging 51 mm of rainfall. The wettest August on record was 2008 with 161 mm, while the driest was 1993 at 2 mm.
Relative humidity in Mission during August averages 66%. The most humid Augusts were 2007 and 2008 at 77%, and the least humid was 2009 at 59%.
August receives about 6.5 kWh/m²/day of solar energy in Mission. The sunniest Augusts were 2011 and 2019 at 7 kWh/m²/day, and the cloudiest was 2008 at 5.7.
Average wind speed in Mission during August is 3.2 m/s. The windiest August was 2001 at 3.8 m/s, while the calmest were 1995 and 2024 at 2.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 30.2°C | 30.4°C | 30.4°C | 31.4°C | 31.2°C | +1°C |
| Avg High | 35.7°C | 35.7°C | 35.6°C | 37.0°C | 36.6°C | +0.9°C |
| Avg Low | 24.8°C | 25.0°C | 25.3°C | 25.7°C | 25.7°C | +0.9°C |
| Avg Rain | 52 mm | 59 mm | 61 mm | 33 mm | 48 mm | -4 mm |
August temperatures in Mission have risen by about 0.9°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 20.8°C (1992) to a record high of 42°C (2023).
Rainfall in August is about average for rainfall, averaging 51 mm, with a wettest year of 161 mm.
A quieter season to visit Mission
If your dates are flexible, the more temperate months of March and November tend to be the most comfortable for visiting Mission. That said, August — with days averaging 36.1°C and nights around 25.3°C (mean 30.7°C) and moderate rainfall (51 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 36.8°C | 31.1°C | 25.5°C | 39.8°C | 24.7°C | 45 mm | 67% | 2.8 m/s | 6.7 |
| 2024 | 36.7°C | 31.4°C | 26.0°C | 39.7°C | 24.1°C | 25 mm | 67% | 2.5 m/s | 6.7 |
| 2023 | 38.6°C | 32.5°C | 26.5°C | 42.0°C | 23.2°C | 50 mm | 63% | 3.4 m/s | 6.9 |
| 2022 | 35.1°C | 30.4°C | 25.6°C | 39.2°C | 24.7°C | 119 mm | 71% | 3.2 m/s | 6.2 |
| 2021 | 35.2°C | 30.2°C | 25.2°C | 38.6°C | 24.2°C | 25 mm | 71% | 3 m/s | 6.9 |
| 2020 | 37.2°C | 31.4°C | 25.6°C | 40.1°C | 23.2°C | 21 mm | 64% | 3.1 m/s | 6.9 |
| 2019 | 38.4°C | 32.5°C | 26.6°C | 41.1°C | 24.8°C | 21 mm | 62% | 3.7 m/s | 7 |
| 2018 | 36.3°C | 30.8°C | 25.3°C | 39.1°C | 24.0°C | 28 mm | 65% | 3.5 m/s | 6.9 |
| 2017 | 36.8°C | 31.4°C | 26.0°C | 39.6°C | 24.0°C | 50 mm | 63% | 3.6 m/s | 6.4 |
| 2016 | 36.5°C | 31.2°C | 25.9°C | 40.3°C | 24.8°C | 43 mm | 66% | 3.2 m/s | 6.4 |
| 2015 | 36.4°C | 30.8°C | 25.2°C | 39.9°C | 21.5°C | 60 mm | 66% | 3.2 m/s | 6.9 |
| 2014 | 36.2°C | 30.9°C | 25.7°C | 40.0°C | 24.1°C | 55 mm | 65% | 3.4 m/s | 6.5 |
| 2013 | 36.9°C | 31.1°C | 25.2°C | 41.5°C | 23.5°C | 37 mm | 63% | 3.2 m/s | 6.4 |
| 2012 | 37.9°C | 31.8°C | 25.8°C | 40.8°C | 23.9°C | 11 mm | 59% | 3.5 m/s | 6.7 |
| 2011 🔥 | 38.8°C | 32.5°C | 26.1°C | 40.9°C | 24.3°C | 11 mm | 60% | 3.6 m/s | 7 |
| 2010 | 35.9°C | 30.6°C | 25.2°C | 39.8°C | 21.3°C | 9 mm | 67% | 2.9 m/s | 6.8 |
| 2009 | 37.9°C | 31.7°C | 25.5°C | 40.6°C | 23.3°C | 22 mm | 59% | 3.5 m/s | 6.8 |
| 2008 🌧️ | 33.3°C | 29.0°C | 24.8°C | 38.4°C | 22.6°C | 161 mm | 77% | 2.9 m/s | 5.7 |
| 2007 ❄️ | 33.2°C | 29.0°C | 24.9°C | 36.2°C | 23.3°C | 101 mm | 77% | 2.6 m/s | 6 |
| 2006 | 35.7°C | 30.7°C | 25.8°C | 38.9°C | 24.3°C | 8 mm | 66% | 3.3 m/s | 6.5 |
| 2005 | 36.4°C | 31.0°C | 25.6°C | 41.6°C | 23.2°C | 8 mm | 64% | 3 m/s | 6.8 |
| 2004 | 36.4°C | 30.8°C | 25.3°C | 39.0°C | 21.4°C | 53 mm | 64% | 3.1 m/s | 6.6 |
| 2003 | 35.0°C | 30.0°C | 24.9°C | 40.8°C | 24.0°C | 86 mm | 69% | 2.9 m/s | 6.5 |
| 2002 | 36.0°C | 30.8°C | 25.6°C | 40.0°C | 23.9°C | 26 mm | 65% | 3.2 m/s | 6.6 |
| 2001 | 36.5°C | 31.1°C | 25.7°C | 40.4°C | 24.2°C | 94 mm | 65% | 3.8 m/s | 6.4 |
| 2000 | 35.2°C | 30.0°C | 24.8°C | 39.6°C | 23.3°C | 46 mm | 66% | 3 m/s | 6.4 |
| 1999 | 35.7°C | 30.4°C | 25.0°C | 39.6°C | 23.0°C | 83 mm | 66% | 3.1 m/s | 6.6 |
| 1998 | 36.7°C | 31.4°C | 26.1°C | 40.9°C | 24.4°C | 45 mm | 64% | 3.1 m/s | 6.4 |
| 1997 | 37.3°C | 31.4°C | 25.4°C | 40.5°C | 23.4°C | 12 mm | 61% | 3.6 m/s | 6.8 |
| 1996 | 34.2°C | 29.5°C | 24.9°C | 40.2°C | 23.0°C | 129 mm | 71% | 3.5 m/s | 5.9 |
| 1995 | 33.9°C | 29.6°C | 25.3°C | 38.3°C | 23.4°C | 139 mm | 72% | 2.5 m/s | 5.8 |
| 1994 | 35.1°C | 29.9°C | 24.7°C | 39.0°C | 22.3°C | 47 mm | 67% | 3.1 m/s | 6.1 |
| 1993 | 36.3°C | 30.6°C | 24.9°C | 38.6°C | 23.4°C | 2 mm | 63% | 3.7 m/s | 6.8 |
| 1992 | 35.1°C | 29.7°C | 24.2°C | 39.0°C | 20.8°C | 56 mm | 66% | 2.8 m/s | 6.4 |
| 1991 | 36.9°C | 30.9°C | 24.9°C | 39.3°C | 23.2°C | 27 mm | 62% | 3.3 m/s | 6.5 |
| 1990 | 35.9°C | 30.4°C | 24.9°C | 38.8°C | 23.1°C | 53 mm | 64% | 3.4 m/s | 6.3 |
| 1989 | 36.1°C | 30.5°C | 24.9°C | 38.9°C | 23.0°C | 41 mm | 64% | 3.5 m/s | 6.4 |
| 1988 | 35.2°C | 30.1°C | 24.9°C | 40.4°C | 23.7°C | 69 mm | 69% | 2.9 m/s | 5.8 |
| 1987 | 35.8°C | 30.3°C | 24.9°C | 38.7°C | 23.5°C | 42 mm | 67% | 3.5 m/s | 6.6 |
| 1986 | 36.1°C | 30.4°C | 24.8°C | 40.2°C | 22.8°C | 26 mm | 63% | 3.3 m/s | 6.5 |
| 1985 | 36.9°C | 30.8°C | 24.7°C | 38.5°C | 23.5°C | 26 mm | 62% | 3.4 m/s | 6.8 |
| 1984 | 35.9°C | 30.2°C | 24.6°C | 38.6°C | 22.4°C | 16 mm | 63% | 3.4 m/s | 6.2 |
| 1983 | 34.4°C | 29.5°C | 24.6°C | 38.8°C | 23.0°C | 70 mm | 69% | 2.8 m/s | — |
| 1982 | 36.0°C | 30.5°C | 24.9°C | 39.3°C | 23.2°C | 20 mm | 63% | 3.5 m/s | — |
| 1981 | 34.7°C | 29.8°C | 24.9°C | 38.3°C | 23.2°C | 159 mm | 70% | 3 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 36.1°C with lows near 25.3°C (mean 30.7°C), based on 45 years of NASA POWER data.
August averages 51 mm of rainfall in Mission, about average for rainfall. The wettest on record was 161 mm in 2008.
The hottest August reached 42°C in 2023. The coldest dipped to 20.8°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 0.9°C. Daytime highs moved from 35.6°C to 36.5°C and overnight lows from 24.7°C to 25.8°C over the same span.
August is one of the warmer months of the year in Mission and about average for rainfall, so plan for around 36.1°C daytime highs and 25.3°C at night.
Not quite — August is the 12th coolest month in Mission, averaging 30.7°C.
For August in Mission, pack light, breathable clothing and sun protection, with typical highs of 36.1°C and lows of 25.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 66% — moderately humid.
Average wind speed in August is 3.2 m/s. The windiest August on record averaged 3.8 m/s (2001).
The wettest August on record was 2008 with 161 mm. On average, August sees 51 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 Mission 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.
