August is one of the warmer months of the year in Morden, with average highs near 26.3°C and lows around 13.4°C (mean 19.9°C). It is a relatively wet time of year, averaging 61 mm of rainfall and 61% relative humidity across the period.
August is one of the warmer months of the year in Morden. Across 45 years of records, the warmest August in Morden was 1983 — when the month averaged 22.9°C — while the coldest was 2004 at 15.4°C. Typical August days reach 26.3°C with nights near 13.4°C. The long-term August temperature trend is broadly flat.
August is a relatively wet time of year in Morden, averaging 61 mm of rainfall. The wettest August on record was 1985 with 182 mm, while the driest was 2001 at 23 mm.
Relative humidity in Morden during August averages 61%. The most humid August was 1993 at 73%, and the least humid was 1984 at 51%.
August receives about 5.2 kWh/m²/day of solar energy in Morden. The sunniest Augusts were 2001 and 2011 at 5.8 kWh/m²/day, and the cloudiest were 1985 and 2004 at 4.3.
Average wind speed in Morden during August is 2.9 m/s. The windiest August was 1995 at 3.5 m/s, while the calmest was 2017 at 2.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 19.8°C | 19.8°C | 19.5°C | 20.1°C | 20.5°C | +0.7°C |
| Avg High | 26.3°C | 26.3°C | 25.8°C | 26.5°C | 26.6°C | +0.3°C |
| Avg Low | 13.2°C | 13.3°C | 13.1°C | 13.6°C | 14.4°C | +1.2°C |
| Avg Rain | 64 mm | 58 mm | 69 mm | 55 mm | 62 mm | -1 mm |
August temperatures in Morden have risen by about 0.6°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 1.2°C (1982) to a record high of 40.2°C (1989).
Rainfall in August is a relatively wet time of year, averaging 61 mm, with a wettest year of 182 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 Morden
August is one of the best times to visit Morden. Expect days averaging 26.3°C and nights around 13.4°C (mean 19.9°C) — warmer than Morden's yearly average — with moderate rainfall (61 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 | 26.9°C | 20.8°C | 14.7°C | 33.2°C | 8.4°C | 47 mm | 64% | 2.9 m/s | 4.8 |
| 2024 | 25.6°C | 19.9°C | 14.2°C | 34.2°C | 9.3°C | 76 mm | 65% | 3 m/s | 5 |
| 2023 | 26.8°C | 20.6°C | 14.4°C | 34.0°C | 9.3°C | 35 mm | 62% | 2.5 m/s | 4.8 |
| 2022 | 26.2°C | 20.5°C | 14.7°C | 30.5°C | 9.3°C | 62 mm | 70% | 2.7 m/s | 5.4 |
| 2021 | 27.4°C | 20.9°C | 14.4°C | 36.6°C | 9.3°C | 100 mm | 61% | 3.1 m/s | 4.4 |
| 2020 | 26.5°C | 20.2°C | 13.8°C | 33.2°C | 6.8°C | 54 mm | 62% | 2.8 m/s | 5.5 |
| 2019 | 26.1°C | 19.8°C | 13.5°C | 33.6°C | 7.4°C | 52 mm | 57% | 3.3 m/s | 5.3 |
| 2018 | 27.8°C | 20.8°C | 13.8°C | 39.3°C | 9.1°C | 36 mm | 54% | 2.9 m/s | 5.1 |
| 2017 | 26.1°C | 19.6°C | 13.1°C | 32.1°C | 9.3°C | 39 mm | 57% | 2.4 m/s | 5.4 |
| 2016 | 25.6°C | 19.5°C | 13.3°C | 31.2°C | 8.4°C | 77 mm | 66% | 2.9 m/s | 5.4 |
| 2015 | 27.5°C | 20.7°C | 13.8°C | 37.3°C | 7.8°C | 38 mm | 58% | 2.9 m/s | 5.1 |
| 2014 | 25.4°C | 19.5°C | 13.6°C | 31.8°C | 6.7°C | 108 mm | 69% | 2.6 m/s | 5 |
| 2013 | 26.7°C | 20.0°C | 13.4°C | 36.1°C | 7.4°C | 37 mm | 62% | 2.5 m/s | 5.4 |
| 2012 | 27.3°C | 20.5°C | 13.7°C | 36.2°C | 8.6°C | 38 mm | 55% | 2.9 m/s | 5.4 |
| 2011 | 26.8°C | 20.6°C | 14.4°C | 35.0°C | 11.1°C | 30 mm | 63% | 3 m/s | 5.8 |
| 2010 | 25.8°C | 19.8°C | 13.8°C | 34.0°C | 7.0°C | 91 mm | 71% | 3.2 m/s | 4.8 |
| 2009 | 23.8°C | 18.1°C | 12.4°C | 33.4°C | 7.3°C | 56 mm | 71% | 2.9 m/s | 4.8 |
| 2008 | 27.5°C | 20.7°C | 13.9°C | 34.1°C | 7.8°C | 66 mm | 59% | 3.3 m/s | 5.5 |
| 2007 | 25.3°C | 18.8°C | 12.4°C | 31.9°C | 7.3°C | 35 mm | 62% | 3.1 m/s | 5.1 |
| 2006 | 27.0°C | 20.4°C | 13.8°C | 33.1°C | 8.8°C | 61 mm | 58% | 3.1 m/s | 5.6 |
| 2005 | 24.4°C | 18.2°C | 12.0°C | 32.9°C | 6.5°C | 72 mm | 65% | 3.3 m/s | 5.3 |
| 2004 ❄️ | 20.8°C | 15.4°C | 9.9°C | 25.0°C | 2.6°C | 108 mm | 70% | 3 m/s | 4.3 |
| 2003 | 29.6°C | 22.8°C | 16.0°C | 36.8°C | 8.2°C | 45 mm | 53% | 3.1 m/s | 5.5 |
| 2002 | 25.9°C | 19.6°C | 13.2°C | 33.0°C | 6.6°C | 112 mm | 64% | 3 m/s | 4.8 |
| 2001 | 28.2°C | 21.2°C | 14.2°C | 33.9°C | 8.2°C | 23 mm | 56% | 3 m/s | 5.8 |
| 2000 | 25.9°C | 19.6°C | 13.2°C | 34.6°C | 7.5°C | 114 mm | 62% | 3.1 m/s | 5.3 |
| 1999 | 25.7°C | 19.2°C | 12.6°C | 33.3°C | 7.2°C | 40 mm | 62% | 2.9 m/s | 5.4 |
| 1998 | 27.7°C | 21.4°C | 15.1°C | 31.8°C | 10.7°C | 52 mm | 60% | 2.6 m/s | 5.6 |
| 1997 | 26.3°C | 19.7°C | 13.1°C | 32.2°C | 6.7°C | 42 mm | 59% | 2.7 m/s | 5.5 |
| 1996 | 27.1°C | 20.3°C | 13.4°C | 33.7°C | 9.6°C | 66 mm | 60% | 2.9 m/s | 5.7 |
| 1995 | 27.6°C | 20.6°C | 13.6°C | 33.2°C | 10.8°C | 84 mm | 61% | 3.5 m/s | 5.4 |
| 1994 | 24.6°C | 18.2°C | 11.9°C | 31.2°C | 6.1°C | 58 mm | 62% | 2.6 m/s | 5.1 |
| 1993 | 23.5°C | 17.9°C | 12.3°C | 30.6°C | 5.8°C | 96 mm | 73% | 3.1 m/s | 4.8 |
| 1992 | 24.8°C | 18.2°C | 11.6°C | 34.7°C | 5.4°C | 38 mm | 58% | 2.9 m/s | 5 |
| 1991 | 27.8°C | 21.2°C | 14.7°C | 36.9°C | 10.3°C | 59 mm | 56% | 2.5 m/s | 5.6 |
| 1990 | 28.0°C | 21.1°C | 14.3°C | 33.9°C | 9.1°C | 43 mm | 52% | 3 m/s | 5.6 |
| 1989 | 28.0°C | 21.0°C | 14.0°C | 40.2°C | 8.2°C | 42 mm | 52% | 3.2 m/s | 4.9 |
| 1988 | 28.0°C | 21.1°C | 14.1°C | 38.9°C | 7.6°C | 36 mm | 52% | 3.3 m/s | 4.8 |
| 1987 | 24.4°C | 18.1°C | 11.8°C | 32.3°C | 5.3°C | 58 mm | 59% | 2.9 m/s | 4.7 |
| 1986 | 24.7°C | 18.0°C | 11.3°C | 34.2°C | 3.4°C | 28 mm | 59% | 2.8 m/s | 5.7 |
| 1985 🌧️ | 21.7°C | 16.2°C | 10.8°C | 29.5°C | 5.8°C | 182 mm | 71% | 3.2 m/s | 4.3 |
| 1984 | 29.1°C | 22.1°C | 15.0°C | 36.8°C | 8.0°C | 27 mm | 51% | 3 m/s | 5.3 |
| 1983 🔥 | 29.6°C | 22.9°C | 16.2°C | 36.4°C | 11.3°C | 44 mm | 59% | 2.7 m/s | — |
| 1982 | 24.4°C | 18.1°C | 11.7°C | 32.1°C | 1.2°C | 62 mm | 63% | 2.9 m/s | — |
| 1981 | 26.8°C | 20.3°C | 13.8°C | 33.2°C | 7.6°C | 94 mm | 66% | 2.5 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 26.3°C with lows near 13.4°C (mean 19.9°C), based on 45 years of NASA POWER data.
August averages 61 mm of rainfall in Morden, a relatively wet time of year. The wettest on record was 182 mm in 1985.
The hottest August reached 40.2°C in 1989. The coldest dipped to 1.2°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 0.6°C. Daytime highs moved from 26.3°C to 26.6°C and overnight lows from 13.5°C to 14.5°C over the same span.
August is one of the warmer months of the year in Morden and a relatively wet time of year, so plan for around 26.3°C daytime highs and 13.4°C at night.
Not quite — August is the 11th coolest month in Morden, averaging 19.9°C.
For August in Morden, pack light layers you can adjust through the day, with typical highs of 26.3°C and lows of 13.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 61% — moderately humid.
Average wind speed in August is 2.9 m/s. The windiest August on record averaged 3.5 m/s (1995).
The wettest August on record was 1985 with 182 mm. On average, August sees 61 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 Morden 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.
