August is one of the warmer months of the year in Derby, with average highs near 20.3°C and lows around 11.1°C (mean 15.7°C). It is about average for rainfall, averaging 67 mm of rainfall and 82% relative humidity across the period.
August is one of the warmer months of the year in Derby. Across 45 years of records, the warmest August in Derby was 1997 — when the month averaged 18°C — while the coldest was 1986 at 12.8°C. Typical August days reach 20.3°C with nights near 11.1°C. The long-term trend is warming, about 0.2°C per decade.
August is about average for rainfall in Derby, averaging 67 mm of rainfall. The wettest August on record was 2004 with 163 mm, while the driest was 1995 at 12 mm.
Relative humidity in Derby during August averages 82%. The most humid August was 2002 at 85%, and the least humid was 2022 at 78%.
August receives about 4.2 kWh/m²/day of solar energy in Derby. The sunniest August was 1995 at 5 kWh/m²/day, and the cloudiest were 1986 and 1987 at 3.4.
Average wind speed in Derby during August is 3 m/s. The windiest August was 1985 at 4.3 m/s, while the calmest was 1984 at 2.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 15.0°C | 15.8°C | 16.0°C | 15.4°C | 16.5°C | +1.5°C |
| Avg High | 19.5°C | 20.6°C | 20.4°C | 20.0°C | 21.2°C | +1.7°C |
| Avg Low | 10.5°C | 11.0°C | 11.5°C | 10.9°C | 11.8°C | +1.3°C |
| Avg Rain | 69 mm | 58 mm | 80 mm | 73 mm | 46 mm | -23 mm |
August temperatures in Derby have risen by about 1°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 4.7°C (2012) to a record high of 30.1°C (1990).
Rainfall in August is about average for rainfall, averaging 67 mm, with a wettest year of 163 mm.
One of the best times to visit Derby
August is one of the best times to visit Derby. Expect days averaging 20.3°C and nights around 11.1°C (mean 15.7°C) — warmer than Derby's yearly average — with moderate rainfall (67 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 | 21.8°C | 16.8°C | 11.9°C | 27.6°C | 9.6°C | 20 mm | 78% | 2.9 m/s | 4.4 |
| 2024 | 21.1°C | 16.3°C | 11.5°C | 27.7°C | 8.0°C | 26 mm | 81% | 3.3 m/s | 4.2 |
| 2023 | 20.6°C | 15.9°C | 11.3°C | 25.4°C | 8.2°C | 73 mm | 82% | 3.1 m/s | 4.3 |
| 2022 | 22.9°C | 17.6°C | 12.3°C | 28.6°C | 7.9°C | 31 mm | 78% | 2.4 m/s | 4.9 |
| 2021 | 19.7°C | 15.5°C | 11.3°C | 22.3°C | 9.1°C | 44 mm | 84% | 2.9 m/s | 3.7 |
| 2020 | 21.3°C | 17.0°C | 12.6°C | 28.0°C | 6.6°C | 82 mm | 83% | 3.5 m/s | 4 |
| 2019 | 21.3°C | 16.5°C | 11.8°C | 28.2°C | 8.6°C | 72 mm | 81% | 3.5 m/s | 4.5 |
| 2018 | 20.8°C | 16.2°C | 11.5°C | 25.8°C | 6.9°C | 61 mm | 82% | 2.8 m/s | 4.2 |
| 2017 | 19.1°C | 14.6°C | 10.2°C | 23.5°C | 6.7°C | 65 mm | 83% | 3 m/s | 4.2 |
| 2016 | 20.7°C | 16.1°C | 11.5°C | 25.6°C | 8.1°C | 75 mm | 83% | 3.3 m/s | 4.6 |
| 2015 | 20.0°C | 15.3°C | 10.6°C | 25.6°C | 8.4°C | 87 mm | 81% | 3 m/s | 3.9 |
| 2014 | 18.3°C | 14.1°C | 9.9°C | 21.8°C | 5.5°C | 96 mm | 82% | 3.6 m/s | 4 |
| 2013 | 20.7°C | 16.0°C | 11.3°C | 28.3°C | 7.8°C | 52 mm | 82% | 3 m/s | 4.3 |
| 2012 | 20.3°C | 15.8°C | 11.3°C | 24.9°C | 4.7°C | 79 mm | 84% | 2.9 m/s | 4 |
| 2011 | 19.3°C | 14.9°C | 10.5°C | 24.2°C | 6.5°C | 60 mm | 81% | 2.8 m/s | 3.9 |
| 2010 | 19.0°C | 14.6°C | 10.1°C | 23.6°C | 6.3°C | 87 mm | 83% | 3.3 m/s | 3.9 |
| 2009 | 20.5°C | 16.1°C | 11.6°C | 24.1°C | 8.2°C | 73 mm | 83% | 3.3 m/s | 4.2 |
| 2008 | 20.1°C | 16.0°C | 11.9°C | 23.9°C | 7.9°C | 101 mm | 84% | 3.4 m/s | 3.5 |
| 2007 | 19.7°C | 15.1°C | 10.5°C | 25.5°C | 7.5°C | 43 mm | 83% | 3.1 m/s | 4.5 |
| 2006 | 19.4°C | 15.3°C | 11.2°C | 25.9°C | 7.4°C | 92 mm | 83% | 3.3 m/s | 3.7 |
| 2005 | 20.4°C | 15.6°C | 10.7°C | 27.2°C | 7.8°C | 69 mm | 82% | 2.8 m/s | 4.4 |
| 2004 🌧️ | 20.9°C | 16.8°C | 12.6°C | 26.8°C | 7.8°C | 163 mm | 84% | 2.7 m/s | 4.1 |
| 2003 | 21.9°C | 17.1°C | 12.2°C | 29.1°C | 6.1°C | 20 mm | 82% | 2.3 m/s | 4.5 |
| 2002 | 20.7°C | 16.2°C | 11.7°C | 26.7°C | 8.7°C | 91 mm | 85% | 2.3 m/s | 3.8 |
| 2001 | 20.5°C | 15.9°C | 11.4°C | 26.1°C | 8.1°C | 85 mm | 84% | 2.6 m/s | 4 |
| 2000 | 20.1°C | 15.6°C | 11.1°C | 23.6°C | 7.7°C | 61 mm | 83% | 2.5 m/s | 4.3 |
| 1999 | 19.4°C | 15.2°C | 11.0°C | 26.9°C | 5.0°C | 101 mm | 83% | 2.6 m/s | 3.9 |
| 1998 | 19.9°C | 15.0°C | 10.1°C | 25.4°C | 5.4°C | 47 mm | 82% | 3.2 m/s | 4.5 |
| 1997 🔥 | 22.7°C | 18.0°C | 13.3°C | 27.2°C | 8.7°C | 87 mm | 82% | 2.6 m/s | 4.2 |
| 1996 | 20.3°C | 15.6°C | 10.9°C | 27.0°C | 8.3°C | 62 mm | 81% | 2.8 m/s | 4.1 |
| 1995 | 22.4°C | 17.0°C | 11.6°C | 27.7°C | 7.8°C | 12 mm | 79% | 2.6 m/s | 5 |
| 1994 | 19.2°C | 14.9°C | 10.7°C | 25.5°C | 7.1°C | 48 mm | 81% | 3.2 m/s | 4.3 |
| 1993 | 18.7°C | 13.8°C | 8.9°C | 22.3°C | 5.5°C | 56 mm | 80% | 2.9 m/s | 4.3 |
| 1992 | 19.5°C | 14.8°C | 10.2°C | 23.7°C | 6.4°C | 105 mm | 78% | 3.8 m/s | 4.2 |
| 1991 | 21.6°C | 16.3°C | 11.0°C | 24.9°C | 6.7°C | 21 mm | 79% | 2.8 m/s | 4.6 |
| 1990 | 22.1°C | 17.2°C | 12.2°C | 30.1°C | 9.2°C | 37 mm | 78% | 3 m/s | 4.6 |
| 1989 | 20.4°C | 15.5°C | 10.6°C | 24.1°C | 7.1°C | 44 mm | 79% | 3.4 m/s | 4.6 |
| 1988 | 18.8°C | 14.4°C | 10.0°C | 25.4°C | 7.2°C | 55 mm | 82% | 3.4 m/s | 4.1 |
| 1987 | 19.2°C | 14.9°C | 10.6°C | 26.0°C | 6.0°C | 69 mm | 84% | 2.9 m/s | 3.4 |
| 1986 ❄️ | 17.0°C | 12.8°C | 8.7°C | 20.0°C | 6.3°C | 115 mm | 82% | 3.3 m/s | 3.4 |
| 1985 | 18.0°C | 13.9°C | 9.8°C | 21.7°C | 7.6°C | 79 mm | 83% | 4.3 m/s | 3.8 |
| 1984 | 21.5°C | 16.7°C | 12.0°C | 25.4°C | 6.8°C | 60 mm | 81% | 2.2 m/s | 4.6 |
| 1983 | 21.1°C | 16.1°C | 11.1°C | 25.3°C | 6.4°C | 27 mm | 81% | 2.3 m/s | — |
| 1982 | 19.3°C | 14.9°C | 10.6°C | 24.7°C | 6.4°C | 87 mm | 82% | 3.4 m/s | — |
| 1981 | 20.3°C | 15.6°C | 10.9°C | 24.2°C | 6.8°C | 82 mm | 83% | 2.5 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 20.3°C with lows near 11.1°C (mean 15.7°C), based on 45 years of NASA POWER data.
August averages 67 mm of rainfall in Derby, about average for rainfall. The wettest on record was 163 mm in 2004.
The hottest August reached 30.1°C in 1990. The coldest dipped to 4.7°C in 2012.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1°C. Daytime highs moved from 20°C to 21.2°C and overnight lows from 10.9°C to 11.7°C over the same span.
August is one of the warmer months of the year in Derby and about average for rainfall, so plan for around 20.3°C daytime highs and 11.1°C at night.
Not quite — August is the 11th coolest month in Derby, averaging 15.7°C.
For August in Derby, pack light layers you can adjust through the day, with typical highs of 20.3°C and lows of 11.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 82% — quite humid.
Average wind speed in August is 3 m/s. The windiest August on record averaged 4.3 m/s (1985).
The wettest August on record was 2004 with 163 mm. On average, August sees 67 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 Derby 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.
