August is one of the warmer months of the year in Newport, with average highs near 18.4°C and lows around 16.1°C (mean 17.3°C). It is one of the drier months, averaging 53 mm of rainfall and 84% relative humidity across the period.
August is one of the warmer months of the year in Newport. Across 45 years of records, the warmest August in Newport was 2022 — when the month averaged 19.4°C — while the coldest was 1986 at 15°C. Typical August days reach 18.4°C with nights near 16.1°C. The long-term trend is warming, about 0.3°C per decade.
August is one of the drier months in Newport, averaging 53 mm of rainfall. The wettest August on record was 1997 with 134 mm, while the driest was 1995 at 6 mm.
Relative humidity in Newport during August averages 84%. The most humid August was 1997 at 90%, and the least humid was 2014 at 78%.
August receives about 4.8 kWh/m²/day of solar energy in Newport. The sunniest Augusts were 1995 and 1998 at 5.5 kWh/m²/day, and the cloudiest were 1986 and 1992 at 4.1.
Average wind speed in Newport during August is 4.9 m/s. The windiest Augusts were 1985 and 2008 at 6.2 m/s, while the calmest was 1981 at 3.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 16.7°C | 17.1°C | 17.3°C | 17.2°C | 18.2°C | +1.5°C |
| Avg High | 17.9°C | 18.3°C | 18.4°C | 18.2°C | 19.3°C | +1.4°C |
| Avg Low | 15.5°C | 15.9°C | 16.2°C | 16.1°C | 17.0°C | +1.5°C |
| Avg Rain | 44 mm | 56 mm | 47 mm | 66 mm | 47 mm | +3 mm |
August temperatures in Newport have risen by about 1.1°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 11.7°C (1986) to a record high of 24.9°C (2018).
Rainfall in August is one of the drier months, averaging 53 mm, with a wettest year of 134 mm.
One of the best times to visit Newport
August is one of the best times to visit Newport. Expect days averaging 18.4°C and nights around 16.1°C (mean 17.3°C) — warmer than Newport's yearly average — with moderate rainfall (53 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 | 19.7°C | 18.5°C | 17.3°C | 22.8°C | 15.9°C | 28 mm | 81% | 5.1 m/s | 4.9 |
| 2024 | 19.2°C | 18.2°C | 17.1°C | 21.1°C | 15.4°C | 44 mm | 84% | 5.4 m/s | 4.8 |
| 2023 | 18.7°C | 17.5°C | 16.4°C | 20.0°C | 14.5°C | 65 mm | 86% | 5.1 m/s | 4.7 |
| 2022 🔥 | 20.7°C | 19.4°C | 18.1°C | 23.4°C | 15.8°C | 34 mm | 81% | 4.3 m/s | 5.2 |
| 2021 | 18.3°C | 17.1°C | 16.0°C | 20.1°C | 14.8°C | 36 mm | 85% | 5.2 m/s | 4.7 |
| 2020 | 19.3°C | 18.2°C | 17.1°C | 23.8°C | 13.5°C | 72 mm | 83% | 4.9 m/s | 4.8 |
| 2019 | 18.5°C | 17.7°C | 16.8°C | 21.2°C | 15.6°C | 55 mm | 85% | 5.5 m/s | 5.1 |
| 2018 | 19.1°C | 17.9°C | 16.7°C | 24.9°C | 13.7°C | 69 mm | 82% | 4.8 m/s | 4.5 |
| 2017 | 18.0°C | 17.0°C | 16.0°C | 20.2°C | 13.4°C | 74 mm | 83% | 5 m/s | 5 |
| 2016 | 18.7°C | 17.6°C | 16.6°C | 21.8°C | 14.2°C | 46 mm | 85% | 5.4 m/s | 5.2 |
| 2015 | 17.8°C | 16.9°C | 15.9°C | 19.9°C | 14.4°C | 116 mm | 85% | 4.8 m/s | 4.2 |
| 2014 | 18.1°C | 17.1°C | 16.0°C | 20.0°C | 13.3°C | 76 mm | 78% | 5.9 m/s | 5 |
| 2013 | 18.6°C | 17.4°C | 16.1°C | 21.2°C | 14.0°C | 24 mm | 84% | 4.6 m/s | 5.2 |
| 2012 | 17.9°C | 17.0°C | 16.2°C | 20.0°C | 12.6°C | 51 mm | 87% | 5.1 m/s | 4.7 |
| 2011 | 17.4°C | 16.4°C | 15.5°C | 19.4°C | 13.8°C | 66 mm | 83% | 5.1 m/s | 4.7 |
| 2010 | 18.2°C | 16.9°C | 15.6°C | 20.8°C | 13.0°C | 82 mm | 83% | 5.8 m/s | 4.4 |
| 2009 | 18.3°C | 17.3°C | 16.3°C | 20.2°C | 14.8°C | 30 mm | 85% | 5 m/s | 4.7 |
| 2008 | 17.6°C | 16.8°C | 16.0°C | 19.0°C | 14.2°C | 71 mm | 86% | 6.2 m/s | 4.2 |
| 2007 | 18.3°C | 16.9°C | 15.5°C | 20.1°C | 13.9°C | 38 mm | 83% | 5.1 m/s | 4.9 |
| 2006 | 18.7°C | 17.4°C | 16.2°C | 21.4°C | 14.4°C | 40 mm | 81% | 5.5 m/s | 4.8 |
| 2005 | 18.5°C | 17.2°C | 15.9°C | 20.1°C | 14.5°C | 47 mm | 82% | 4.3 m/s | 5.3 |
| 2004 | 18.2°C | 17.3°C | 16.3°C | 20.3°C | 13.9°C | 93 mm | 86% | 5.1 m/s | 4.8 |
| 2003 | 19.6°C | 18.2°C | 16.9°C | 24.1°C | 13.8°C | 24 mm | 82% | 4.2 m/s | 5.1 |
| 2002 | 18.4°C | 17.2°C | 15.9°C | 19.9°C | 14.9°C | 42 mm | 86% | 3.6 m/s | 5 |
| 2001 | 18.1°C | 17.2°C | 16.3°C | 20.4°C | 14.3°C | 49 mm | 86% | 5 m/s | 4.6 |
| 2000 | 18.1°C | 17.1°C | 16.2°C | 20.4°C | 14.8°C | 40 mm | 86% | 4.7 m/s | 4.9 |
| 1999 | 18.1°C | 17.2°C | 16.4°C | 19.7°C | 14.7°C | 110 mm | 86% | 4.7 m/s | 4.6 |
| 1998 | 18.2°C | 16.9°C | 15.5°C | 20.6°C | 13.4°C | 17 mm | 82% | 4.6 m/s | 5.5 |
| 1997 🌧️ | 18.6°C | 17.8°C | 17.0°C | 19.9°C | 15.7°C | 134 mm | 90% | 3.9 m/s | 4.2 |
| 1996 | 17.8°C | 16.6°C | 15.4°C | 20.1°C | 13.4°C | 65 mm | 84% | 4.7 m/s | 5.1 |
| 1995 | 20.2°C | 18.5°C | 16.8°C | 22.1°C | 14.4°C | 6 mm | 81% | 4.5 m/s | 5.5 |
| 1994 | 18.1°C | 17.0°C | 15.9°C | 19.7°C | 13.8°C | 55 mm | 83% | 5.1 m/s | 4.6 |
| 1993 | 17.4°C | 16.1°C | 14.7°C | 19.2°C | 12.5°C | 34 mm | 81% | 4.9 m/s | 4.9 |
| 1992 | 17.6°C | 16.6°C | 15.6°C | 19.8°C | 12.0°C | 100 mm | 85% | 6.1 m/s | 4.1 |
| 1991 | 17.9°C | 16.7°C | 15.6°C | 20.0°C | 14.1°C | 19 mm | 87% | 4.2 m/s | 5.2 |
| 1990 | 18.9°C | 17.6°C | 16.4°C | 24.4°C | 14.5°C | 21 mm | 83% | 4.4 m/s | 5.1 |
| 1989 | 19.1°C | 17.8°C | 16.4°C | 20.3°C | 13.8°C | 28 mm | 80% | 5 m/s | 5.2 |
| 1988 | 17.0°C | 15.8°C | 14.7°C | 18.4°C | 12.5°C | 30 mm | 85% | 5.1 m/s | 4.6 |
| 1987 | 17.9°C | 16.6°C | 15.3°C | 20.4°C | 13.5°C | 31 mm | 83% | 4 m/s | 4.4 |
| 1986 ❄️ | 16.2°C | 15.0°C | 13.8°C | 17.8°C | 11.7°C | 94 mm | 82% | 4.9 m/s | 4.1 |
| 1985 | 16.5°C | 15.5°C | 14.6°C | 17.4°C | 13.4°C | 81 mm | 85% | 6.2 m/s | 4.4 |
| 1984 | 18.6°C | 17.4°C | 16.3°C | 22.1°C | 13.8°C | 31 mm | 85% | 4 m/s | 4.6 |
| 1983 | 19.6°C | 18.0°C | 16.5°C | 22.1°C | 14.1°C | 28 mm | 82% | 4.5 m/s | — |
| 1982 | 18.2°C | 17.0°C | 15.8°C | 22.0°C | 12.7°C | 57 mm | 82% | 5.4 m/s | — |
| 1981 | 18.4°C | 17.2°C | 16.0°C | 20.9°C | 13.8°C | 16 mm | 84% | 3.5 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 18.4°C with lows near 16.1°C (mean 17.3°C), based on 45 years of NASA POWER data.
August averages 53 mm of rainfall in Newport, one of the drier months. The wettest on record was 134 mm in 1997.
The hottest August reached 24.9°C in 2018. The coldest dipped to 11.7°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.1°C. Daytime highs moved from 18.3°C to 19.3°C and overnight lows from 15.8°C to 17°C over the same span.
August is one of the warmer months of the year in Newport and one of the drier months, so plan for around 18.4°C daytime highs and 16.1°C at night.
Not quite — August is the 12th coolest month in Newport, averaging 17.3°C.
For August in Newport, pack light layers you can adjust through the day, with typical highs of 18.4°C and lows of 16.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 84% — quite humid.
Average wind speed in August is 4.9 m/s. The windiest August on record averaged 6.2 m/s (1985).
The wettest August on record was 1997 with 134 mm. On average, August sees 53 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 Newport 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.
