August is one of the warmer months of the year in Gander, with average highs near 21.3°C and lows around 11.3°C (mean 16.3°C). It is about average for rainfall, averaging 100 mm of rainfall and 84% relative humidity across the period.
August is one of the warmer months of the year in Gander. Across 45 years of records, the warmest August in Gander was 2022 — when the month averaged 18.7°C — while the coldest was 1983 at 14.2°C. Typical August days reach 21.3°C with nights near 11.3°C. The long-term trend is warming, about 0.4°C per decade.
August is about average for rainfall in Gander, averaging 100 mm of rainfall. The wettest August on record was 1983 with 166 mm, while the driest was 1987 at 38 mm.
Relative humidity in Gander during August averages 84%. The most humid August was 2014 at 88%, and the least humid was 1987 at 80%.
August receives about 4.4 kWh/m²/day of solar energy in Gander. The sunniest August was 1996 at 5.1 kWh/m²/day, and the cloudiest was 2008 at 3.6.
Average wind speed in Gander during August is 0.8 m/s. The windiest Augusts were 1989 and 1992 at 0.9 m/s, while the calmest were 1986 and 2010 at 0.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 15.6°C | 15.9°C | 16.3°C | 16.7°C | 17.2°C | +1.6°C |
| Avg High | 20.6°C | 20.9°C | 21.3°C | 21.6°C | 22.3°C | +1.7°C |
| Avg Low | 10.5°C | 10.9°C | 11.3°C | 11.8°C | 12.1°C | +1.6°C |
| Avg Rain | 100 mm | 104 mm | 114 mm | 94 mm | 81 mm | -19 mm |
August temperatures in Gander have risen by about 2°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 2°C (2002) to a record high of 30.5°C (2025).
Rainfall in August is about average for rainfall, averaging 100 mm, with a wettest year of 166 mm.
One of the best times to visit Gander
August is one of the best times to visit Gander. Expect days averaging 21.3°C and nights around 11.3°C (mean 16.3°C) — warmer than Gander's yearly average — with higher rainfall (100 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 | 21.6°C | 16.3°C | 10.9°C | 30.5°C | 5.0°C | 75 mm | 82% | 0.8 m/s | 5 |
| 2024 | 22.7°C | 17.6°C | 12.5°C | 29.7°C | 7.3°C | 86 mm | 84% | 0.7 m/s | 4.5 |
| 2023 | 21.1°C | 16.5°C | 12.0°C | 27.8°C | 8.0°C | 105 mm | 86% | 0.7 m/s | 4.1 |
| 2022 🔥 | 23.8°C | 18.7°C | 13.7°C | 28.1°C | 7.9°C | 69 mm | 82% | 0.7 m/s | 4.6 |
| 2021 | 22.3°C | 17.1°C | 11.9°C | 29.9°C | 6.4°C | 69 mm | 82% | 0.8 m/s | 4.5 |
| 2020 | 22.2°C | 16.8°C | 11.5°C | 27.8°C | 5.7°C | 82 mm | 82% | 0.8 m/s | 4.9 |
| 2019 | 22.4°C | 17.2°C | 11.9°C | 28.6°C | 6.0°C | 44 mm | 84% | 0.7 m/s | 4.5 |
| 2018 | 23.2°C | 18.1°C | 13.0°C | 28.4°C | 7.2°C | 64 mm | 85% | 0.7 m/s | 4.3 |
| 2017 | 20.5°C | 15.5°C | 10.5°C | 25.2°C | 6.6°C | 116 mm | 84% | 0.8 m/s | 4.5 |
| 2016 | 20.7°C | 16.0°C | 11.3°C | 25.4°C | 6.7°C | 115 mm | 84% | 0.7 m/s | 4.4 |
| 2015 | 23.4°C | 18.0°C | 12.5°C | 28.8°C | 8.3°C | 78 mm | 85% | 0.7 m/s | 4.6 |
| 2014 | 19.9°C | 16.0°C | 12.1°C | 26.9°C | 4.8°C | 162 mm | 88% | 0.8 m/s | 3.7 |
| 2013 | 21.4°C | 16.2°C | 11.0°C | 26.1°C | 2.9°C | 144 mm | 83% | 0.8 m/s | 4.5 |
| 2012 | 22.9°C | 18.1°C | 13.3°C | 27.6°C | 9.0°C | 110 mm | 85% | 0.7 m/s | 3.9 |
| 2011 | 20.5°C | 15.9°C | 11.3°C | 27.9°C | 6.6°C | 52 mm | 86% | 0.7 m/s | 4.2 |
| 2010 | 21.5°C | 16.5°C | 11.5°C | 26.7°C | 6.4°C | 56 mm | 84% | 0.6 m/s | 4.4 |
| 2009 | 20.9°C | 16.2°C | 11.5°C | 27.3°C | 6.4°C | 162 mm | 84% | 0.8 m/s | 4.2 |
| 2008 | 20.5°C | 16.1°C | 11.7°C | 26.5°C | 8.6°C | 154 mm | 88% | 0.7 m/s | 3.6 |
| 2007 | 20.9°C | 16.0°C | 11.1°C | 24.8°C | 7.4°C | 107 mm | 84% | 0.8 m/s | 4.3 |
| 2006 | 19.8°C | 15.0°C | 10.2°C | 25.4°C | 3.1°C | 122 mm | 84% | 0.8 m/s | 4.1 |
| 2005 | 21.0°C | 16.1°C | 11.2°C | 27.4°C | 7.9°C | 101 mm | 84% | 0.8 m/s | 4.4 |
| 2004 | 23.2°C | 18.0°C | 12.8°C | 28.3°C | 6.4°C | 102 mm | 83% | 0.8 m/s | 4.4 |
| 2003 | 21.6°C | 16.1°C | 10.7°C | 26.2°C | 4.1°C | 63 mm | 82% | 0.7 m/s | 4.7 |
| 2002 | 20.9°C | 15.9°C | 10.9°C | 29.3°C | 2.0°C | 109 mm | 85% | 0.8 m/s | 4.4 |
| 2001 | 22.2°C | 16.9°C | 11.6°C | 28.4°C | 5.6°C | 112 mm | 82% | 0.7 m/s | 4.7 |
| 2000 | 21.8°C | 16.8°C | 11.7°C | 28.1°C | 7.4°C | 111 mm | 85% | 0.7 m/s | 4.3 |
| 1999 | 21.6°C | 16.3°C | 11.0°C | 26.8°C | 5.5°C | 119 mm | 83% | 0.8 m/s | 4.3 |
| 1998 | 20.9°C | 16.2°C | 11.5°C | 27.8°C | 7.2°C | 127 mm | 84% | 0.8 m/s | 4.6 |
| 1997 | 20.1°C | 15.4°C | 10.6°C | 27.4°C | 3.0°C | 123 mm | 85% | 0.7 m/s | 4 |
| 1996 | 22.8°C | 17.5°C | 12.2°C | 29.3°C | 6.5°C | 65 mm | 82% | 0.7 m/s | 5.1 |
| 1995 | 19.5°C | 14.3°C | 9.0°C | 28.3°C | 4.6°C | 116 mm | 84% | 0.8 m/s | 4.4 |
| 1994 | 22.1°C | 16.8°C | 11.5°C | 28.2°C | 6.6°C | 67 mm | 82% | 0.8 m/s | 4.9 |
| 1993 | 20.0°C | 15.5°C | 11.0°C | 27.8°C | 4.9°C | 121 mm | 85% | 0.8 m/s | 4.7 |
| 1992 | 19.4°C | 14.6°C | 9.8°C | 24.7°C | 4.4°C | 126 mm | 85% | 0.9 m/s | 4.2 |
| 1991 | 19.4°C | 14.4°C | 9.4°C | 26.0°C | 4.8°C | 128 mm | 85% | 0.8 m/s | 4.1 |
| 1990 | 23.5°C | 18.0°C | 12.6°C | 28.2°C | 5.6°C | 45 mm | 81% | 0.8 m/s | 4.8 |
| 1989 | 22.4°C | 17.2°C | 12.0°C | 27.7°C | 4.9°C | 109 mm | 82% | 0.9 m/s | 4.3 |
| 1988 | 21.1°C | 15.7°C | 10.3°C | 27.7°C | 6.6°C | 83 mm | 82% | 0.8 m/s | 4.6 |
| 1987 | 20.3°C | 15.3°C | 10.2°C | 25.7°C | 6.3°C | 38 mm | 80% | 0.7 m/s | 4.5 |
| 1986 | 20.8°C | 15.8°C | 10.8°C | 25.4°C | 6.2°C | 77 mm | 85% | 0.6 m/s | 4.6 |
| 1985 | 19.1°C | 14.5°C | 9.8°C | 27.5°C | 3.6°C | 103 mm | 85% | 0.8 m/s | 4.5 |
| 1984 | 21.4°C | 16.2°C | 11.1°C | 26.8°C | 5.6°C | 157 mm | 85% | 0.8 m/s | 4.7 |
| 1983 ❄️ 🌧️ | 19.0°C | 14.2°C | 9.4°C | 25.6°C | 3.7°C | 166 mm | 85% | 0.8 m/s | — |
| 1982 | 20.8°C | 15.6°C | 10.4°C | 26.2°C | 5.1°C | 49 mm | 81% | 0.7 m/s | — |
| 1981 | 20.8°C | 15.7°C | 10.6°C | 25.5°C | 4.5°C | 119 mm | 85% | 0.8 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 21.3°C with lows near 11.3°C (mean 16.3°C), based on 45 years of NASA POWER data.
August averages 100 mm of rainfall in Gander, about average for rainfall. The wettest on record was 166 mm in 1983.
The hottest August reached 30.5°C in 2025. The coldest dipped to 2°C in 2002.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 2°C. Daytime highs moved from 20.2°C to 22.3°C and overnight lows from 10.3°C to 12.2°C over the same span.
August is one of the warmer months of the year in Gander and about average for rainfall, so plan for around 21.3°C daytime highs and 11.3°C at night.
Not quite — August is the 11th coolest month in Gander, averaging 16.3°C.
For August in Gander, pack light layers you can adjust through the day, with typical highs of 21.3°C and lows of 11.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 84% — quite humid.
Average wind speed in August is 0.8 m/s. The windiest August on record averaged 0.9 m/s (1989).
The wettest August on record was 1983 with 166 mm. On average, August sees 100 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 Gander 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.
