August is one of the warmer months of the year in New Bedford, with average highs near 23.6°C and lows around 19.5°C (mean 21.6°C). It is about average for rainfall, averaging 86 mm of rainfall and 80% relative humidity across the period.
August is one of the warmer months of the year in New Bedford. Across 45 years of records, the warmest August in New Bedford was 2018 — when the month averaged 23.7°C — while the coldest were 1982 and 1986 at 20°C. Typical August days reach 23.6°C with nights near 19.5°C. The long-term trend is warming, about 0.5°C per decade.
August is about average for rainfall in New Bedford, averaging 86 mm of rainfall. The wettest August on record was 1985 with 221 mm, while the driest were 1984 and 1993 at 20 mm.
Relative humidity in New Bedford during August averages 80%. The most humid Augusts were 2000, 2003 and 2004 at 84%, and the least humid was 2025 at 76%.
August receives about 5.3 kWh/m²/day of solar energy in New Bedford. The sunniest August was 2016 at 6.1 kWh/m²/day, and the cloudiest was 1996 at 4.9.
Average wind speed in New Bedford during August is 4.2 m/s. The windiest August was 2020 at 4.8 m/s, while the calmest was 1996 at 3.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 20.9°C | 21.0°C | 21.6°C | 22.3°C | 22.4°C | +1.5°C |
| Avg High | 23.1°C | 23.1°C | 23.6°C | 24.3°C | 24.4°C | +1.3°C |
| Avg Low | 18.7°C | 18.9°C | 19.6°C | 20.3°C | 20.5°C | +1.8°C |
| Avg Rain | 94 mm | 96 mm | 84 mm | 79 mm | 74 mm | -19 mm |
August temperatures in New Bedford have risen by about 1.3°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 11.2°C (1982) to a record high of 29.9°C (2002).
Rainfall in August is about average for rainfall, averaging 86 mm, with a wettest year of 221 mm.
One of the best times to visit New Bedford
August is one of the best times to visit New Bedford. Expect days averaging 23.6°C and nights around 19.5°C (mean 21.6°C) — warmer than New Bedford's yearly average — with higher rainfall (86 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 | 23.2°C | 21.1°C | 19.0°C | 26.4°C | 16.5°C | 65 mm | 76% | 4.3 m/s | 5.8 |
| 2024 | 24.1°C | 21.9°C | 19.8°C | 27.7°C | 16.4°C | 70 mm | 82% | 4.2 m/s | 5.4 |
| 2023 | 23.5°C | 21.7°C | 19.8°C | 26.2°C | 17.9°C | 129 mm | 81% | 4.3 m/s | 5 |
| 2022 | 25.4°C | 23.5°C | 21.7°C | 28.1°C | 19.3°C | 54 mm | 82% | 4.2 m/s | 5.4 |
| 2021 | 25.3°C | 23.5°C | 21.6°C | 29.6°C | 18.2°C | 79 mm | 81% | 4 m/s | 5 |
| 2020 | 24.8°C | 22.9°C | 21.0°C | 27.7°C | 18.3°C | 47 mm | 79% | 4.8 m/s | 5.3 |
| 2019 | 24.2°C | 22.4°C | 20.5°C | 27.7°C | 17.3°C | 86 mm | 81% | 4.1 m/s | 5.5 |
| 2018 🔥 | 25.5°C | 23.7°C | 21.9°C | 28.6°C | 18.1°C | 71 mm | 84% | 4.5 m/s | 5.3 |
| 2017 | 23.3°C | 21.4°C | 19.5°C | 26.7°C | 17.0°C | 99 mm | 80% | 3.7 m/s | 5.2 |
| 2016 | 25.5°C | 23.4°C | 21.4°C | 29.0°C | 18.6°C | 50 mm | 78% | 4.3 m/s | 6.1 |
| 2015 | 24.9°C | 22.9°C | 20.9°C | 27.1°C | 18.3°C | 82 mm | 82% | 4.1 m/s | 5.9 |
| 2014 | 23.1°C | 21.0°C | 18.9°C | 25.3°C | 16.5°C | 52 mm | 78% | 3.9 m/s | 5.8 |
| 2013 | 23.2°C | 21.2°C | 19.1°C | 25.6°C | 16.3°C | 67 mm | 79% | 4.4 m/s | 5.2 |
| 2012 | 25.0°C | 23.1°C | 21.2°C | 27.1°C | 17.3°C | 73 mm | 80% | 3.9 m/s | 5.6 |
| 2011 | 24.0°C | 22.0°C | 20.0°C | 27.6°C | 16.5°C | 113 mm | 81% | 4.5 m/s | 5.5 |
| 2010 | 24.1°C | 22.0°C | 19.8°C | 29.6°C | 16.5°C | 99 mm | 79% | 4.6 m/s | 5.4 |
| 2009 | 24.2°C | 22.2°C | 20.2°C | 27.8°C | 15.9°C | 119 mm | 84% | 4 m/s | 5 |
| 2008 | 23.3°C | 21.1°C | 18.9°C | 26.4°C | 15.9°C | 87 mm | 79% | 3.8 m/s | 5.8 |
| 2007 | 23.5°C | 21.3°C | 19.1°C | 26.8°C | 15.4°C | 28 mm | 79% | 4.2 m/s | 5.3 |
| 2006 | 23.7°C | 21.6°C | 19.5°C | 28.8°C | 16.1°C | 83 mm | 78% | 4.2 m/s | 5.4 |
| 2005 | 24.6°C | 22.5°C | 20.4°C | 27.7°C | 17.3°C | 65 mm | 82% | 4 m/s | 5.3 |
| 2004 | 22.5°C | 20.6°C | 18.7°C | 25.5°C | 15.5°C | 113 mm | 84% | 4.6 m/s | 5.1 |
| 2003 | 24.0°C | 22.1°C | 20.2°C | 27.3°C | 16.0°C | 87 mm | 84% | 4.5 m/s | 5.2 |
| 2002 | 24.2°C | 22.1°C | 19.9°C | 29.9°C | 16.5°C | 39 mm | 80% | 4.5 m/s | 5.4 |
| 2001 | 23.6°C | 21.8°C | 20.0°C | 27.6°C | 16.9°C | 104 mm | 84% | 4.3 m/s | 5.2 |
| 2000 | 22.4°C | 20.5°C | 18.7°C | 25.7°C | 15.0°C | 110 mm | 84% | 4.1 m/s | 5 |
| 1999 | 23.3°C | 21.4°C | 19.6°C | 27.0°C | 16.6°C | 91 mm | 79% | 4.6 m/s | 5.2 |
| 1998 | 23.5°C | 21.4°C | 19.3°C | 26.1°C | 15.8°C | 106 mm | 79% | 3.6 m/s | 5.5 |
| 1997 | 22.6°C | 20.5°C | 18.4°C | 25.8°C | 16.2°C | 109 mm | 83% | 4.1 m/s | 5.1 |
| 1996 | 22.2°C | 20.2°C | 18.1°C | 25.7°C | 16.5°C | 109 mm | 83% | 3.5 m/s | 4.9 |
| 1995 | 23.9°C | 21.3°C | 18.7°C | 28.2°C | 15.9°C | 35 mm | 76% | 4.5 m/s | 5.7 |
| 1994 | 22.5°C | 20.3°C | 18.2°C | 26.5°C | 14.7°C | 105 mm | 81% | 4.6 m/s | 5.1 |
| 1993 | 23.2°C | 21.1°C | 19.0°C | 27.3°C | 16.3°C | 20 mm | 79% | 3.7 m/s | 5.8 |
| 1992 | 22.2°C | 20.1°C | 18.0°C | 24.4°C | 15.1°C | 177 mm | 82% | 4.1 m/s | 5.3 |
| 1991 | 23.5°C | 21.3°C | 19.1°C | 26.6°C | 15.9°C | 153 mm | 82% | 4.7 m/s | 5 |
| 1990 | 24.3°C | 22.2°C | 20.1°C | 26.9°C | 17.7°C | 56 mm | 81% | 4.2 m/s | 5 |
| 1989 | 22.6°C | 20.7°C | 18.8°C | 24.2°C | 13.9°C | 102 mm | 82% | 4.1 m/s | 5.1 |
| 1988 | 23.9°C | 21.9°C | 19.9°C | 26.4°C | 14.9°C | 30 mm | 81% | 4.6 m/s | 5 |
| 1987 | 22.7°C | 20.3°C | 17.9°C | 28.3°C | 14.0°C | 85 mm | 76% | 4.4 m/s | 5.1 |
| 1986 | 22.0°C | 20.0°C | 18.0°C | 24.9°C | 11.9°C | 142 mm | 80% | 4.2 m/s | 5.3 |
| 1985 🌧️ | 23.2°C | 21.1°C | 18.9°C | 27.1°C | 14.6°C | 221 mm | 79% | 4.1 m/s | 5.1 |
| 1984 | 24.0°C | 21.8°C | 19.7°C | 27.8°C | 16.5°C | 20 mm | 81% | 3.6 m/s | 5.7 |
| 1983 | 23.7°C | 21.3°C | 18.9°C | 27.9°C | 14.9°C | 113 mm | 80% | 4.3 m/s | — |
| 1982 ❄️ | 22.3°C | 20.0°C | 17.7°C | 25.9°C | 11.2°C | 84 mm | 77% | 4.5 m/s | — |
| 1981 | 23.3°C | 20.9°C | 18.4°C | 27.1°C | 14.4°C | 47 mm | 77% | 4 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 23.6°C with lows near 19.5°C (mean 21.6°C), based on 45 years of NASA POWER data.
August averages 86 mm of rainfall in New Bedford, about average for rainfall. The wettest on record was 221 mm in 1985.
The hottest August reached 29.9°C in 2002. The coldest dipped to 11.2°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.3°C. Daytime highs moved from 23.3°C to 24.3°C and overnight lows from 18.7°C to 20.4°C over the same span.
August is one of the warmer months of the year in New Bedford and about average for rainfall, so plan for around 23.6°C daytime highs and 19.5°C at night.
Not quite — August is the 12th coolest month in New Bedford, averaging 21.6°C.
For August in New Bedford, pack light layers you can adjust through the day, with typical highs of 23.6°C and lows of 19.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 80% — quite humid.
Average wind speed in August is 4.2 m/s. The windiest August on record averaged 4.8 m/s (2020).
The wettest August on record was 1985 with 221 mm. On average, August sees 86 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 New Bedford 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.
