August is one of the warmer months of the year in Brockton, with average highs near 27.6°C and lows around 16.8°C (mean 22.2°C). It is about average for rainfall, averaging 94 mm of rainfall and 73% relative humidity across the period.
August is one of the warmer months of the year in Brockton. Across 45 years of records, the warmest August in Brockton was 2022 — when the month averaged 25.2°C — while the coldest was 1982 at 19.6°C. Typical August days reach 27.6°C with nights near 16.8°C. The long-term trend is warming, about 0.5°C per decade.
August is about average for rainfall in Brockton, averaging 94 mm of rainfall. The wettest August on record was 2011 with 207 mm, while the driest was 1984 at 26 mm.
Relative humidity in Brockton during August averages 73%. The most humid August was 2009 at 81%, and the least humid was 1995 at 63%.
August receives about 5.2 kWh/m²/day of solar energy in Brockton. The sunniest Augusts were 2002 and 2025 at 5.8 kWh/m²/day, and the cloudiest was 2021 at 4.7.
Average wind speed in Brockton during August is 0.3 m/s. The windiest Augusts were 1987, 1995 and 2010, among others at 0.4 m/s, while the calmest were 2023, 2024 and 2025, among others at 0.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 21.1°C | 21.8°C | 22.5°C | 22.7°C | 23.0°C | +1.9°C |
| Avg High | 26.6°C | 27.4°C | 27.8°C | 28.1°C | 28.4°C | +1.8°C |
| Avg Low | 15.7°C | 16.2°C | 17.2°C | 17.3°C | 17.7°C | +2°C |
| Avg Rain | 92 mm | 106 mm | 86 mm | 95 mm | 88 mm | -4 mm |
August temperatures in Brockton have risen by about 1.6°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 6.8°C (1986) to a record high of 38.2°C (2002).
Rainfall in August is about average for rainfall, averaging 94 mm, with a wettest year of 207 mm.
One of the best times to visit Brockton
August is one of the best times to visit Brockton. Expect days averaging 27.6°C and nights around 16.8°C (mean 22.2°C) — warmer than Brockton's yearly average — with higher rainfall (94 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 | 28.5°C | 22.2°C | 15.9°C | 35.3°C | 12.2°C | 56 mm | 65% | 0.3 m/s | 5.8 |
| 2024 | 27.2°C | 22.0°C | 16.8°C | 33.1°C | 11.7°C | 94 mm | 77% | 0.3 m/s | 4.8 |
| 2023 | 25.7°C | 21.1°C | 16.6°C | 28.5°C | 12.5°C | 143 mm | 81% | 0.3 m/s | 4.9 |
| 2022 🔥 | 30.9°C | 25.2°C | 19.4°C | 37.6°C | 15.4°C | 71 mm | 68% | 0.3 m/s | 5.5 |
| 2021 | 28.1°C | 23.4°C | 18.8°C | 32.8°C | 12.7°C | 115 mm | 80% | 0.3 m/s | 4.7 |
| 2020 | 30.0°C | 24.2°C | 18.4°C | 34.8°C | 12.8°C | 49 mm | 66% | 0.3 m/s | 5.2 |
| 2019 | 27.5°C | 22.4°C | 17.2°C | 32.1°C | 11.9°C | 105 mm | 74% | 0.3 m/s | 5.6 |
| 2018 | 29.4°C | 24.4°C | 19.5°C | 36.1°C | 14.1°C | 99 mm | 77% | 0.3 m/s | 5 |
| 2017 | 26.9°C | 21.5°C | 16.2°C | 31.1°C | 11.4°C | 63 mm | 73% | 0.3 m/s | 5.4 |
| 2016 | 30.4°C | 24.5°C | 18.6°C | 34.7°C | 13.4°C | 61 mm | 67% | 0.3 m/s | 5.7 |
| 2015 | 29.8°C | 24.0°C | 18.1°C | 34.5°C | 14.0°C | 69 mm | 70% | 0.3 m/s | 5.5 |
| 2014 | 27.1°C | 21.4°C | 15.6°C | 32.5°C | 11.9°C | 67 mm | 72% | 0.3 m/s | 5.4 |
| 2013 | 26.4°C | 21.2°C | 15.9°C | 31.9°C | 11.6°C | 78 mm | 75% | 0.3 m/s | 5.5 |
| 2012 | 28.6°C | 23.1°C | 17.6°C | 33.6°C | 12.7°C | 102 mm | 73% | 0.3 m/s | 5.6 |
| 2011 🌧️ | 26.6°C | 22.0°C | 17.3°C | 32.4°C | 12.9°C | 207 mm | 79% | 0.3 m/s | 5 |
| 2010 | 28.5°C | 22.9°C | 17.3°C | 34.9°C | 12.9°C | 100 mm | 69% | 0.4 m/s | 5.1 |
| 2009 | 27.1°C | 22.4°C | 17.7°C | 32.0°C | 12.6°C | 90 mm | 81% | 0.3 m/s | 5.3 |
| 2008 | 25.9°C | 20.6°C | 15.3°C | 29.3°C | 10.9°C | 97 mm | 78% | 0.3 m/s | 5.3 |
| 2007 | 29.1°C | 22.9°C | 16.7°C | 35.6°C | 10.6°C | 29 mm | 67% | 0.3 m/s | 5.4 |
| 2006 | 25.7°C | 21.0°C | 16.3°C | 32.5°C | 11.4°C | 101 mm | 79% | 0.3 m/s | 5.2 |
| 2005 | 30.1°C | 24.4°C | 18.8°C | 36.2°C | 14.4°C | 87 mm | 70% | 0.3 m/s | 5.2 |
| 2004 | 26.4°C | 21.5°C | 16.7°C | 31.9°C | 11.5°C | 138 mm | 79% | 0.3 m/s | 5.1 |
| 2003 | 27.6°C | 23.0°C | 18.4°C | 32.7°C | 11.9°C | 107 mm | 79% | 0.3 m/s | 4.8 |
| 2002 | 30.4°C | 24.1°C | 17.8°C | 38.2°C | 11.4°C | 52 mm | 63% | 0.3 m/s | 5.8 |
| 2001 | 29.6°C | 24.0°C | 18.4°C | 37.8°C | 12.2°C | 86 mm | 70% | 0.3 m/s | 5.2 |
| 2000 | 25.9°C | 20.8°C | 15.8°C | 31.2°C | 11.2°C | 70 mm | 78% | 0.3 m/s | 4.9 |
| 1999 | 27.9°C | 22.3°C | 16.7°C | 34.2°C | 12.1°C | 61 mm | 67% | 0.3 m/s | 5 |
| 1998 | 27.8°C | 22.1°C | 16.5°C | 31.9°C | 10.8°C | 88 mm | 75% | 0.3 m/s | 5.2 |
| 1997 | 26.6°C | 21.0°C | 15.5°C | 32.2°C | 12.7°C | 120 mm | 73% | 0.3 m/s | 5.1 |
| 1996 | 27.6°C | 21.8°C | 16.1°C | 31.5°C | 13.2°C | 65 mm | 74% | 0.3 m/s | 5.3 |
| 1995 | 29.3°C | 22.6°C | 15.9°C | 35.6°C | 11.3°C | 47 mm | 63% | 0.4 m/s | 5.5 |
| 1994 | 26.6°C | 21.0°C | 15.4°C | 33.3°C | 10.6°C | 151 mm | 74% | 0.3 m/s | 5.1 |
| 1993 | 29.3°C | 23.0°C | 16.6°C | 36.1°C | 12.1°C | 42 mm | 67% | 0.3 m/s | 5.5 |
| 1992 | 25.4°C | 20.2°C | 15.0°C | 30.4°C | 10.9°C | 153 mm | 77% | 0.3 m/s | 5.1 |
| 1991 | 27.1°C | 22.0°C | 16.8°C | 31.8°C | 11.5°C | 188 mm | 76% | 0.3 m/s | 5.2 |
| 1990 | 26.2°C | 21.6°C | 17.0°C | 32.0°C | 12.7°C | 147 mm | 80% | 0.3 m/s | 5 |
| 1989 | 24.8°C | 20.4°C | 15.9°C | 29.9°C | 8.5°C | 158 mm | 81% | 0.3 m/s | 5.1 |
| 1988 | 28.6°C | 23.0°C | 17.5°C | 35.2°C | 8.6°C | 46 mm | 72% | 0.3 m/s | 5.2 |
| 1987 | 27.0°C | 20.9°C | 14.9°C | 34.3°C | 9.9°C | 92 mm | 67% | 0.4 m/s | 5.3 |
| 1986 | 24.9°C | 19.9°C | 14.8°C | 30.3°C | 6.8°C | 110 mm | 77% | 0.4 m/s | 4.9 |
| 1985 | 26.4°C | 20.9°C | 15.5°C | 33.5°C | 11.7°C | 156 mm | 74% | 0.3 m/s | 5 |
| 1984 | 26.8°C | 21.7°C | 16.7°C | 30.2°C | 11.0°C | 26 mm | 80% | 0.3 m/s | 5.7 |
| 1983 | 27.6°C | 21.9°C | 16.2°C | 32.5°C | 10.8°C | 120 mm | 73% | 0.3 m/s | — |
| 1982 ❄️ | 24.9°C | 19.6°C | 14.3°C | 28.4°C | 6.9°C | 79 mm | 75% | 0.4 m/s | — |
| 1981 | 28.1°C | 21.8°C | 15.5°C | 32.7°C | 8.7°C | 42 mm | 65% | 0.3 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 27.6°C with lows near 16.8°C (mean 22.2°C), based on 45 years of NASA POWER data.
August averages 94 mm of rainfall in Brockton, about average for rainfall. The wettest on record was 207 mm in 2011.
The hottest August reached 38.2°C in 2002. The coldest dipped to 6.8°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.6°C. Daytime highs moved from 26.8°C to 28.1°C and overnight lows from 15.6°C to 17.5°C over the same span.
August is one of the warmer months of the year in Brockton and about average for rainfall, so plan for around 27.6°C daytime highs and 16.8°C at night.
Not quite — August is the 11th coolest month in Brockton, averaging 22.2°C.
For August in Brockton, pack light layers you can adjust through the day, with typical highs of 27.6°C and lows of 16.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 73% — moderately humid.
Average wind speed in August is 0.3 m/s. The windiest August on record averaged 0.4 m/s (1982).
The wettest August on record was 2011 with 207 mm. On average, August sees 94 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 Brockton 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.
