August is one of the warmer months of the year in Newark, with average highs near 29.6°C and lows around 19.3°C (mean 24.5°C). It is about average for rainfall, averaging 104 mm of rainfall and 71% relative humidity across the period.
August is one of the warmer months of the year in Newark. Across 45 years of records, the warmest August in Newark was 2022 — when the month averaged 26.8°C — while the coldest was 1994 at 22.1°C. Typical August days reach 29.6°C with nights near 19.3°C. The long-term trend is warming, about 0.3°C per decade.
August is about average for rainfall in Newark, averaging 104 mm of rainfall. The wettest August on record was 2011 with 336 mm, while the driest was 2025 at 39 mm.
Relative humidity in Newark during August averages 71%. The most humid August was 2003 at 85%, and the least humid was 2002 at 60%.
August receives about 5.4 kWh/m²/day of solar energy in Newark. The sunniest Augusts were 2016 and 2022 at 6.1 kWh/m²/day, and the cloudiest were 1989, 1990 and 2000 at 4.8.
Average wind speed in Newark during August is 2 m/s. The windiest August was 1995 at 2.4 m/s, while the calmest were 1996 and 2009 at 1.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 23.8°C | 24.0°C | 24.8°C | 24.6°C | 25.3°C | +1.5°C |
| Avg High | 29.1°C | 29.4°C | 29.8°C | 29.5°C | 30.3°C | +1.2°C |
| Avg Low | 18.5°C | 18.7°C | 19.8°C | 19.6°C | 20.3°C | +1.8°C |
| Avg Rain | 85 mm | 106 mm | 99 mm | 123 mm | 102 mm | +17 mm |
August temperatures in Newark have risen by about 1.8°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 8.1°C (1982) to a record high of 37.9°C (1983).
Rainfall in August is about average for rainfall, averaging 104 mm, with a wettest year of 336 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.2°C per decade while lows rose 0.5°C per decade, narrowing the gap between day and night.
One of the best times to visit Newark
August is one of the best times to visit Newark. Expect days averaging 29.6°C and nights around 19.3°C (mean 24.5°C) — warmer than Newark's yearly average — with higher rainfall (104 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 | 29.2°C | 23.6°C | 18.0°C | 34.4°C | 12.3°C | 39 mm | 67% | 2.1 m/s | 5.4 |
| 2024 | 30.4°C | 25.1°C | 19.9°C | 36.5°C | 13.2°C | 108 mm | 72% | 2.1 m/s | 5.4 |
| 2023 | 29.9°C | 24.9°C | 19.9°C | 33.2°C | 15.9°C | 71 mm | 70% | 2.2 m/s | 5.3 |
| 2022 🔥 | 32.3°C | 26.8°C | 21.3°C | 36.7°C | 16.7°C | 72 mm | 66% | 2 m/s | 6.1 |
| 2021 | 31.2°C | 26.4°C | 21.6°C | 36.1°C | 17.0°C | 122 mm | 74% | 1.9 m/s | 5 |
| 2020 | 28.9°C | 24.9°C | 20.8°C | 32.9°C | 17.0°C | 200 mm | 80% | 2 m/s | 5.2 |
| 2019 | 30.5°C | 25.3°C | 20.2°C | 34.7°C | 15.6°C | 78 mm | 71% | 1.9 m/s | 5.5 |
| 2018 | 29.6°C | 25.3°C | 21.1°C | 34.3°C | 15.5°C | 143 mm | 80% | 2.1 m/s | 5.6 |
| 2017 | 27.3°C | 22.9°C | 18.5°C | 30.9°C | 14.1°C | 142 mm | 78% | 1.9 m/s | 5.4 |
| 2016 | 32.0°C | 26.6°C | 21.3°C | 35.9°C | 15.5°C | 55 mm | 69% | 2 m/s | 6.1 |
| 2015 | 30.5°C | 24.8°C | 19.0°C | 34.0°C | 15.0°C | 56 mm | 66% | 2 m/s | 5.9 |
| 2014 | 27.9°C | 22.8°C | 17.6°C | 32.1°C | 13.3°C | 116 mm | 74% | 1.9 m/s | 5.5 |
| 2013 | 26.9°C | 22.6°C | 18.4°C | 31.0°C | 12.5°C | 125 mm | 80% | 1.9 m/s | 5 |
| 2012 | 30.1°C | 25.3°C | 20.6°C | 34.2°C | 16.6°C | 103 mm | 71% | 1.8 m/s | 5.3 |
| 2011 🌧️ | 29.1°C | 24.4°C | 19.6°C | 33.8°C | 14.1°C | 336 mm | 73% | 2.3 m/s | 5.2 |
| 2010 | 31.0°C | 25.5°C | 20.1°C | 36.6°C | 15.1°C | 80 mm | 68% | 2.1 m/s | 5.3 |
| 2009 | 28.8°C | 24.7°C | 20.6°C | 32.7°C | 15.8°C | 197 mm | 80% | 1.7 m/s | 5.3 |
| 2008 | 29.6°C | 23.8°C | 18.1°C | 33.0°C | 14.2°C | 40 mm | 66% | 1.9 m/s | 5.9 |
| 2007 | 31.2°C | 25.6°C | 20.0°C | 35.4°C | 15.8°C | 93 mm | 69% | 2 m/s | 5.2 |
| 2006 | 30.9°C | 25.5°C | 20.2°C | 35.9°C | 14.1°C | 45 mm | 68% | 2.1 m/s | 5.6 |
| 2005 | 31.3°C | 26.3°C | 21.3°C | 36.2°C | 15.5°C | 72 mm | 71% | 1.9 m/s | 5.2 |
| 2004 | 27.7°C | 23.1°C | 18.6°C | 31.5°C | 12.5°C | 129 mm | 81% | 2.1 m/s | 5.1 |
| 2003 | 27.8°C | 23.9°C | 20.0°C | 30.7°C | 13.0°C | 129 mm | 85% | 1.8 m/s | 5.1 |
| 2002 | 32.5°C | 26.7°C | 20.9°C | 37.8°C | 15.4°C | 72 mm | 60% | 2.2 m/s | 5.4 |
| 2001 | 31.0°C | 25.7°C | 20.3°C | 37.6°C | 15.9°C | 111 mm | 70% | 2 m/s | 5.4 |
| 2000 | 27.3°C | 22.9°C | 18.4°C | 32.0°C | 11.0°C | 104 mm | 77% | 2.3 m/s | 4.8 |
| 1999 | 30.8°C | 25.3°C | 19.7°C | 35.5°C | 14.4°C | 116 mm | 62% | 2.3 m/s | 5.3 |
| 1998 | 30.9°C | 25.2°C | 19.4°C | 34.9°C | 12.1°C | 77 mm | 67% | 2.2 m/s | 5.7 |
| 1997 | 29.3°C | 23.7°C | 18.2°C | 35.9°C | 13.6°C | 123 mm | 66% | 2 m/s | 5.4 |
| 1996 | 27.0°C | 22.5°C | 17.9°C | 30.5°C | 14.9°C | 101 mm | 80% | 1.7 m/s | 5.5 |
| 1995 | 31.7°C | 25.4°C | 19.1°C | 36.4°C | 14.4°C | 52 mm | 62% | 2.4 m/s | 5.7 |
| 1994 ❄️ | 27.0°C | 22.1°C | 17.1°C | 32.2°C | 11.6°C | 140 mm | 78% | 2 m/s | 5.2 |
| 1993 | 30.8°C | 25.2°C | 19.6°C | 34.7°C | 15.2°C | 86 mm | 68% | 1.8 m/s | 5.5 |
| 1992 | 27.6°C | 22.4°C | 17.2°C | 31.8°C | 12.4°C | 99 mm | 71% | 2.1 m/s | 5.5 |
| 1991 | 30.6°C | 25.1°C | 19.7°C | 35.6°C | 16.5°C | 105 mm | 68% | 2.1 m/s | 5.6 |
| 1990 | 28.1°C | 23.5°C | 18.9°C | 32.0°C | 14.8°C | 166 mm | 78% | 2 m/s | 4.8 |
| 1989 | 26.5°C | 22.6°C | 18.6°C | 30.3°C | 12.0°C | 95 mm | 83% | 2 m/s | 4.8 |
| 1988 | 30.8°C | 25.4°C | 19.9°C | 35.7°C | 12.4°C | 103 mm | 68% | 2.2 m/s | 5.3 |
| 1987 | 30.8°C | 24.8°C | 18.8°C | 35.8°C | 13.2°C | 60 mm | 64% | 2.2 m/s | 5.3 |
| 1986 | 29.0°C | 23.6°C | 18.2°C | 33.6°C | 8.6°C | 112 mm | 67% | 2.3 m/s | 5.4 |
| 1985 | 28.2°C | 23.4°C | 18.6°C | 34.6°C | 14.2°C | 105 mm | 72% | 1.9 m/s | 5.4 |
| 1984 | 27.9°C | 23.2°C | 18.5°C | 30.0°C | 10.4°C | 71 mm | 79% | 1.8 m/s | 6 |
| 1983 | 31.5°C | 25.5°C | 19.4°C | 37.9°C | 12.5°C | 73 mm | 65% | 2 m/s | — |
| 1982 | 28.7°C | 22.8°C | 16.9°C | 32.3°C | 8.1°C | 60 mm | 65% | 2.1 m/s | — |
| 1981 | 28.9°C | 23.1°C | 17.2°C | 32.8°C | 11.0°C | 87 mm | 67% | 2 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 29.6°C with lows near 19.3°C (mean 24.5°C), based on 45 years of NASA POWER data.
August averages 104 mm of rainfall in Newark, about average for rainfall. The wettest on record was 336 mm in 2011.
The hottest August reached 37.9°C in 1983. The coldest dipped to 8.1°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.8°C. Daytime highs moved from 29°C to 30.6°C and overnight lows from 18.1°C to 20.1°C over the same span.
August is one of the warmer months of the year in Newark and about average for rainfall, so plan for around 29.6°C daytime highs and 19.3°C at night.
Not quite — August is the 11th coolest month in Newark, averaging 24.5°C.
For August in Newark, pack light layers you can adjust through the day, with typical highs of 29.6°C and lows of 19.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 71% — moderately humid.
Average wind speed in August is 2 m/s. The windiest August on record averaged 2.4 m/s (1995).
The wettest August on record was 2011 with 336 mm. On average, August sees 104 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 Newark 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.
