August is one of the warmer months of the year in Burnham-on-Sea, with average highs near 20.6°C and lows around 12.2°C (mean 16.4°C). It is about average for rainfall, averaging 71 mm of rainfall and 82% relative humidity across the period.
August is one of the warmer months of the year in Burnham-on-Sea. Across 45 years of records, the warmest August in Burnham-on-Sea was 1995 — when the month averaged 19.4°C — while the coldest was 1986 at 13.6°C. Typical August days reach 20.6°C with nights near 12.2°C. The long-term trend is warming, about 0.2°C per decade.
August is about average for rainfall in Burnham-on-Sea, averaging 71 mm of rainfall. The wettest August on record was 2015 with 153 mm, while the driest was 1995 at 11 mm.
Relative humidity in Burnham-on-Sea during August averages 82%. The most humid August was 2012 at 87%, and the least humid was 1995 at 71%.
August receives about 4.3 kWh/m²/day of solar energy in Burnham-on-Sea. The sunniest August was 1995 at 5.4 kWh/m²/day, and the cloudiest was 2008 at 3.4.
Average wind speed in Burnham-on-Sea during August is 3.1 m/s. The windiest August was 1985 at 4.2 m/s, while the calmest was 1981 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 15.9°C | 16.6°C | 16.4°C | 16.0°C | 17.4°C | +1.5°C |
| Avg High | 20.1°C | 21.0°C | 20.4°C | 20.0°C | 21.8°C | +1.7°C |
| Avg Low | 11.6°C | 12.3°C | 12.4°C | 12.0°C | 12.9°C | +1.3°C |
| Avg Rain | 61 mm | 72 mm | 69 mm | 91 mm | 58 mm | -3 mm |
August temperatures in Burnham-on-Sea have risen by about 1°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 6.5°C (1986) to a record high of 31.6°C (2022).
Rainfall in August is about average for rainfall, averaging 71 mm, with a wettest year of 153 mm.
One of the best times to visit Burnham-on-Sea
August is one of the best times to visit Burnham-on-Sea. Expect days averaging 20.6°C and nights around 12.2°C (mean 16.4°C) — warmer than Burnham-on-Sea's yearly average — with moderate rainfall (71 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 | 22.7°C | 18.0°C | 13.2°C | 29.6°C | 9.8°C | 40 mm | 76% | 3.1 m/s | 4.6 |
| 2024 | 20.9°C | 16.7°C | 12.5°C | 26.0°C | 9.3°C | 59 mm | 83% | 3.4 m/s | 4 |
| 2023 | 20.6°C | 16.5°C | 12.4°C | 23.7°C | 10.1°C | 72 mm | 85% | 3.3 m/s | 3.9 |
| 2022 | 24.6°C | 19.2°C | 13.8°C | 31.6°C | 9.4°C | 19 mm | 72% | 2.6 m/s | 5 |
| 2021 | 20.1°C | 16.0°C | 11.8°C | 22.2°C | 8.9°C | 47 mm | 85% | 3 m/s | 4 |
| 2020 | 21.6°C | 17.7°C | 13.7°C | 29.6°C | 8.3°C | 109 mm | 82% | 3.4 m/s | 3.9 |
| 2019 | 20.8°C | 16.7°C | 12.7°C | 25.4°C | 10.0°C | 86 mm | 83% | 3.5 m/s | 4.5 |
| 2018 | 21.4°C | 17.0°C | 12.5°C | 26.2°C | 7.5°C | 89 mm | 81% | 3.1 m/s | 4.1 |
| 2017 | 19.3°C | 15.6°C | 11.9°C | 24.1°C | 9.3°C | 73 mm | 84% | 3.1 m/s | 4.3 |
| 2016 | 20.9°C | 16.7°C | 12.5°C | 24.9°C | 9.3°C | 71 mm | 83% | 3.4 m/s | 4.4 |
| 2015 🌧️ | 19.3°C | 15.3°C | 11.4°C | 23.9°C | 8.7°C | 153 mm | 84% | 3.1 m/s | 3.7 |
| 2014 | 18.7°C | 14.9°C | 11.0°C | 21.7°C | 6.7°C | 102 mm | 82% | 3.6 m/s | 4.3 |
| 2013 | 21.1°C | 16.7°C | 12.3°C | 26.1°C | 9.6°C | 52 mm | 81% | 3.1 m/s | 4.3 |
| 2012 | 19.4°C | 16.1°C | 12.8°C | 23.8°C | 7.3°C | 106 mm | 87% | 3.4 m/s | 3.9 |
| 2011 | 19.0°C | 15.3°C | 11.6°C | 23.2°C | 8.4°C | 82 mm | 82% | 2.9 m/s | 4 |
| 2010 | 19.7°C | 15.6°C | 11.6°C | 23.1°C | 7.2°C | 92 mm | 83% | 3.6 m/s | 4 |
| 2009 | 19.9°C | 16.1°C | 12.4°C | 22.5°C | 9.7°C | 59 mm | 85% | 3.4 m/s | 4 |
| 2008 | 19.1°C | 15.8°C | 12.5°C | 22.5°C | 8.0°C | 114 mm | 87% | 3.8 m/s | 3.4 |
| 2007 | 19.5°C | 15.3°C | 11.1°C | 23.5°C | 8.8°C | 62 mm | 84% | 3.2 m/s | 4.7 |
| 2006 | 19.9°C | 16.3°C | 12.6°C | 24.4°C | 9.7°C | 54 mm | 81% | 3.6 m/s | 4.2 |
| 2005 | 20.6°C | 16.1°C | 11.7°C | 24.3°C | 8.0°C | 47 mm | 81% | 2.9 m/s | 4.9 |
| 2004 | 20.6°C | 16.8°C | 13.1°C | 25.2°C | 8.9°C | 130 mm | 84% | 3.2 m/s | 4.3 |
| 2003 | 23.0°C | 18.1°C | 13.2°C | 28.4°C | 7.7°C | 29 mm | 80% | 2.5 m/s | 4.6 |
| 2002 | 20.3°C | 16.2°C | 12.2°C | 22.6°C | 10.0°C | 46 mm | 84% | 2.6 m/s | 4.1 |
| 2001 | 20.4°C | 16.4°C | 12.4°C | 24.0°C | 9.2°C | 77 mm | 84% | 3 m/s | 3.9 |
| 2000 | 20.4°C | 16.4°C | 12.4°C | 25.0°C | 9.7°C | 71 mm | 84% | 2.9 m/s | 4.3 |
| 1999 | 19.9°C | 16.2°C | 12.6°C | 24.6°C | 8.4°C | 146 mm | 86% | 2.6 m/s | 4.1 |
| 1998 | 20.4°C | 15.7°C | 11.1°C | 25.4°C | 8.1°C | 36 mm | 83% | 3.1 m/s | 4.8 |
| 1997 | 22.1°C | 18.3°C | 14.5°C | 25.9°C | 11.9°C | 145 mm | 85% | 2.6 m/s | 4 |
| 1996 | 20.1°C | 15.7°C | 11.4°C | 26.2°C | 8.4°C | 65 mm | 81% | 3.2 m/s | 4.5 |
| 1995 🔥 | 24.8°C | 19.4°C | 13.9°C | 29.3°C | 9.6°C | 11 mm | 71% | 2.8 m/s | 5.4 |
| 1994 | 20.1°C | 16.2°C | 12.2°C | 23.6°C | 7.5°C | 79 mm | 81% | 3.2 m/s | 4.4 |
| 1993 | 19.1°C | 14.7°C | 10.3°C | 22.0°C | 6.9°C | 40 mm | 81% | 2.9 m/s | 4.4 |
| 1992 | 19.1°C | 15.4°C | 11.7°C | 22.9°C | 7.7°C | 136 mm | 82% | 3.7 m/s | 4 |
| 1991 | 21.8°C | 16.9°C | 12.1°C | 25.0°C | 8.4°C | 26 mm | 80% | 2.9 m/s | 4.7 |
| 1990 | 22.6°C | 17.8°C | 13.0°C | 31.5°C | 9.9°C | 38 mm | 78% | 3 m/s | 4.5 |
| 1989 | 21.1°C | 16.5°C | 11.9°C | 24.9°C | 8.3°C | 43 mm | 79% | 3.3 m/s | 4.7 |
| 1988 | 19.2°C | 15.0°C | 10.8°C | 25.7°C | 7.5°C | 60 mm | 82% | 3.4 m/s | 4.1 |
| 1987 | 20.5°C | 16.1°C | 11.7°C | 25.5°C | 7.2°C | 28 mm | 80% | 2.9 m/s | 4.1 |
| 1986 ❄️ | 17.4°C | 13.6°C | 9.9°C | 21.8°C | 6.5°C | 123 mm | 83% | 3.2 m/s | 3.5 |
| 1985 | 18.0°C | 14.5°C | 11.1°C | 22.4°C | 8.6°C | 111 mm | 85% | 4.2 m/s | 3.9 |
| 1984 | 22.2°C | 17.6°C | 12.9°C | 26.5°C | 8.3°C | 51 mm | 79% | 2.5 m/s | 4.6 |
| 1983 | 22.1°C | 17.2°C | 12.4°C | 27.0°C | 8.2°C | 29 mm | 79% | 2.7 m/s | — |
| 1982 | 19.3°C | 15.6°C | 11.8°C | 25.2°C | 8.2°C | 65 mm | 83% | 3.5 m/s | — |
| 1981 | 21.2°C | 16.6°C | 12.1°C | 25.3°C | 8.0°C | 36 mm | 82% | 2.3 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 20.6°C with lows near 12.2°C (mean 16.4°C), based on 45 years of NASA POWER data.
August averages 71 mm of rainfall in Burnham-on-Sea, about average for rainfall. The wettest on record was 153 mm in 2015.
The hottest August reached 31.6°C in 2022. The coldest dipped to 6.5°C in 1986.
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 20.6°C to 21.8°C and overnight lows from 12.1°C to 12.7°C over the same span.
August is one of the warmer months of the year in Burnham-on-Sea and about average for rainfall, so plan for around 20.6°C daytime highs and 12.2°C at night.
Not quite — August is the 12th coolest month in Burnham-on-Sea, averaging 16.4°C.
For August in Burnham-on-Sea, pack light layers you can adjust through the day, with typical highs of 20.6°C and lows of 12.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 82% — quite humid.
Average wind speed in August is 3.1 m/s. The windiest August on record averaged 4.2 m/s (1985).
The wettest August on record was 2015 with 153 mm. On average, August sees 71 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 Burnham-on-Sea 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.
