August is one of the warmer months of the year in Cumbernauld, with average highs near 17.3°C and lows around 9.7°C (mean 13.5°C). It is a relatively wet time of year, averaging 95 mm of rainfall and 86% relative humidity across the period.
August is one of the warmer months of the year in Cumbernauld. Across 45 years of records, the warmest August in Cumbernauld was 1995 — when the month averaged 15.9°C — while the coldest was 1986 at 11.1°C. Typical August days reach 17.3°C with nights near 9.7°C. The long-term trend is warming, about 0.2°C per decade.
August is a relatively wet time of year in Cumbernauld, averaging 95 mm of rainfall. The wettest August on record was 2008 with 219 mm, while the driest was 1995 at 21 mm.
Relative humidity in Cumbernauld during August averages 86%. The most humid August was 2008 at 90%, and the least humid was 1984 at 79%.
August receives about 3.7 kWh/m²/day of solar energy in Cumbernauld. The sunniest August was 1995 at 4.6 kWh/m²/day, and the cloudiest was 2008 at 3.
Average wind speed in Cumbernauld during August is 3 m/s. The windiest August was 2024 at 4.2 m/s, while the calmest was 2021 at 2.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.0°C | 13.6°C | 13.8°C | 13.1°C | 14.4°C | +1.4°C |
| Avg High | 16.8°C | 17.5°C | 17.6°C | 16.8°C | 18.3°C | +1.5°C |
| Avg Low | 9.2°C | 9.6°C | 10.1°C | 9.5°C | 10.5°C | +1.3°C |
| Avg Rain | 88 mm | 70 mm | 117 mm | 108 mm | 85 mm | -3 mm |
August temperatures in Cumbernauld have risen by about 0.8°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 3.7°C (1982) to a record high of 26.5°C (2025).
Rainfall in August is a relatively wet time of year, averaging 95 mm, with a wettest year of 219 mm.
One of the best times to visit Cumbernauld
August is one of the best times to visit Cumbernauld. Expect days averaging 17.3°C and nights around 9.7°C (mean 13.5°C) — warmer than Cumbernauld's yearly average — with higher rainfall (95 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 | 19.3°C | 15.2°C | 11.1°C | 26.5°C | 7.8°C | 57 mm | 82% | 3.2 m/s | 4.2 |
| 2024 | 17.1°C | 13.8°C | 10.4°C | 22.0°C | 7.1°C | 121 mm | 86% | 4.2 m/s | 3.6 |
| 2023 | 17.9°C | 14.2°C | 10.5°C | 23.9°C | 6.8°C | 61 mm | 85% | 2.9 m/s | 3.8 |
| 2022 | 18.9°C | 14.6°C | 10.3°C | 24.3°C | 7.3°C | 64 mm | 84% | 2.7 m/s | 4.3 |
| 2021 | 18.5°C | 14.4°C | 10.2°C | 22.9°C | 6.6°C | 87 mm | 86% | 2.1 m/s | 3.7 |
| 2020 | 17.9°C | 14.0°C | 10.2°C | 24.0°C | 5.3°C | 120 mm | 86% | 2.9 m/s | 3.5 |
| 2019 | 18.0°C | 14.5°C | 11.0°C | 24.8°C | 7.0°C | 138 mm | 87% | 3.3 m/s | 3.8 |
| 2018 | 16.6°C | 13.0°C | 9.5°C | 21.9°C | 4.9°C | 98 mm | 86% | 3.2 m/s | 3.6 |
| 2017 | 16.4°C | 12.6°C | 8.9°C | 18.8°C | 5.5°C | 117 mm | 88% | 3.1 m/s | 3.7 |
| 2016 | 17.2°C | 13.6°C | 9.9°C | 21.9°C | 5.7°C | 87 mm | 87% | 3.3 m/s | 3.8 |
| 2015 | 16.6°C | 13.0°C | 9.3°C | 20.5°C | 6.3°C | 82 mm | 86% | 3.2 m/s | 3.9 |
| 2014 | 15.7°C | 12.0°C | 8.3°C | 18.6°C | 4.2°C | 126 mm | 86% | 3.4 m/s | 3.8 |
| 2013 | 17.4°C | 13.7°C | 10.1°C | 20.4°C | 6.5°C | 69 mm | 86% | 3.1 m/s | 3.7 |
| 2012 | 17.2°C | 13.6°C | 10.1°C | 20.5°C | 5.3°C | 124 mm | 88% | 2.7 m/s | 3.8 |
| 2011 | 15.9°C | 12.5°C | 9.0°C | 20.1°C | 6.1°C | 158 mm | 87% | 2.6 m/s | 3.1 |
| 2010 | 16.7°C | 12.7°C | 8.7°C | 20.7°C | 3.7°C | 86 mm | 86% | 2.6 m/s | 3.9 |
| 2009 | 17.1°C | 13.8°C | 10.6°C | 19.9°C | 8.1°C | 154 mm | 88% | 3.8 m/s | 3.5 |
| 2008 🌧️ | 16.8°C | 13.6°C | 10.4°C | 20.9°C | 6.0°C | 219 mm | 90% | 3 m/s | 3 |
| 2007 | 16.5°C | 12.8°C | 9.1°C | 21.2°C | 6.2°C | 117 mm | 87% | 3.2 m/s | 3.7 |
| 2006 | 17.5°C | 13.6°C | 9.7°C | 22.1°C | 7.6°C | 77 mm | 86% | 2.7 m/s | 3.8 |
| 2005 | 17.6°C | 13.4°C | 9.3°C | 21.3°C | 5.8°C | 72 mm | 85% | 3.1 m/s | 4 |
| 2004 | 18.5°C | 14.8°C | 11.1°C | 22.9°C | 5.2°C | 217 mm | 88% | 2.9 m/s | 3.5 |
| 2003 | 18.8°C | 14.6°C | 10.4°C | 25.7°C | 4.6°C | 42 mm | 84% | 2.5 m/s | 4.1 |
| 2002 | 18.1°C | 14.2°C | 10.4°C | 21.9°C | 6.9°C | 96 mm | 88% | 2.4 m/s | 3.5 |
| 2001 | 17.1°C | 13.5°C | 9.8°C | 20.8°C | 5.9°C | 86 mm | 87% | 2.8 m/s | 3.3 |
| 2000 | 17.6°C | 13.7°C | 9.8°C | 21.5°C | 6.2°C | 93 mm | 87% | 2.4 m/s | 3.6 |
| 1999 | 17.0°C | 13.1°C | 9.2°C | 23.6°C | 4.5°C | 60 mm | 85% | 3.1 m/s | 3.8 |
| 1998 | 16.6°C | 13.0°C | 9.4°C | 21.2°C | 4.4°C | 78 mm | 88% | 3.5 m/s | 3.8 |
| 1997 | 19.5°C | 15.3°C | 11.0°C | 24.3°C | 7.4°C | 52 mm | 87% | 2.6 m/s | 4 |
| 1996 | 17.8°C | 13.9°C | 10.0°C | 21.5°C | 7.4°C | 74 mm | 85% | 2.4 m/s | 3.9 |
| 1995 🔥 | 20.7°C | 15.9°C | 11.0°C | 25.3°C | 6.1°C | 21 mm | 80% | 2.3 m/s | 4.6 |
| 1994 | 16.5°C | 12.6°C | 8.6°C | 21.5°C | 4.8°C | 80 mm | 84% | 2.7 m/s | 3.8 |
| 1993 | 15.7°C | 11.7°C | 7.7°C | 21.8°C | 3.9°C | 61 mm | 86% | 2.7 m/s | 3.8 |
| 1992 | 15.6°C | 12.1°C | 8.6°C | 18.6°C | 4.4°C | 148 mm | 85% | 3.9 m/s | 3.8 |
| 1991 | 18.0°C | 14.2°C | 10.4°C | 23.0°C | 7.1°C | 48 mm | 85% | 3.2 m/s | 3.8 |
| 1990 | 17.7°C | 13.9°C | 10.1°C | 24.3°C | 6.2°C | 81 mm | 86% | 3.5 m/s | 3.6 |
| 1989 | 16.3°C | 12.8°C | 9.2°C | 20.3°C | 5.2°C | 108 mm | 85% | 4 m/s | 3.6 |
| 1988 | 15.9°C | 12.6°C | 9.3°C | 22.3°C | 5.5°C | 138 mm | 86% | 3.6 m/s | 3.8 |
| 1987 | 16.2°C | 12.6°C | 9.0°C | 20.6°C | 3.8°C | 99 mm | 86% | 2.8 m/s | 3.7 |
| 1986 ❄️ | 15.0°C | 11.1°C | 7.3°C | 18.5°C | 3.8°C | 95 mm | 82% | 2.8 m/s | 3.3 |
| 1985 | 14.8°C | 11.6°C | 8.3°C | 17.6°C | 5.8°C | 174 mm | 88% | 4 m/s | 3.3 |
| 1984 | 19.8°C | 15.1°C | 10.3°C | 25.3°C | 7.0°C | 30 mm | 79% | 2.6 m/s | 3.9 |
| 1983 | 19.2°C | 14.8°C | 10.4°C | 22.9°C | 7.1°C | 22 mm | 82% | 2.4 m/s | — |
| 1982 | 16.7°C | 13.1°C | 9.5°C | 23.7°C | 3.7°C | 97 mm | 85% | 3.9 m/s | — |
| 1981 | 17.6°C | 13.3°C | 9.1°C | 21.1°C | 5.5°C | 30 mm | 86% | 2.7 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 17.3°C with lows near 9.7°C (mean 13.5°C), based on 45 years of NASA POWER data.
August averages 95 mm of rainfall in Cumbernauld, a relatively wet time of year. The wettest on record was 219 mm in 2008.
The hottest August reached 26.5°C in 2025. The coldest dipped to 3.7°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 0.8°C. Daytime highs moved from 17.6°C to 18.3°C and overnight lows from 9.5°C to 10.5°C over the same span.
August is one of the warmer months of the year in Cumbernauld and a relatively wet time of year, so plan for around 17.3°C daytime highs and 9.7°C at night.
Not quite — August is the 11th coolest month in Cumbernauld, averaging 13.5°C.
For August in Cumbernauld, pack light layers you can adjust through the day, with typical highs of 17.3°C and lows of 9.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 86% — quite humid.
Average wind speed in August is 3 m/s. The windiest August on record averaged 4.2 m/s (2024).
The wettest August on record was 2008 with 219 mm. On average, August sees 95 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 Cumbernauld 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.
