August is one of the warmer months of the year in Kilmarnock, with average highs near 16.8°C and lows around 10.6°C (mean 13.7°C). It is about average for rainfall, averaging 108 mm of rainfall and 86% relative humidity across the period.
August is one of the warmer months of the year in Kilmarnock. Across 45 years of records, the warmest August in Kilmarnock was 1995 — when the month averaged 15.8°C — while the coldest was 1986 at 11.4°C. Typical August days reach 16.8°C with nights near 10.6°C. The long-term trend is warming, about 0.2°C per decade.
August is about average for rainfall in Kilmarnock, averaging 108 mm of rainfall. The wettest August on record was 1985 with 220 mm, while the driest was 1995 at 29 mm.
Relative humidity in Kilmarnock during August averages 86%. The most humid August was 2008 at 90%, and the least humid was 1984 at 82%.
August receives about 3.7 kWh/m²/day of solar energy in Kilmarnock. The sunniest August was 1995 at 4.6 kWh/m²/day, and the cloudiest were 1985 and 2008 at 3.1.
Average wind speed in Kilmarnock during August is 3.4 m/s. The windiest August was 1985 at 4.6 m/s, while the calmest was 1983 at 2.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.2°C | 13.7°C | 14.0°C | 13.4°C | 14.5°C | +1.3°C |
| Avg High | 16.3°C | 16.9°C | 17.1°C | 16.3°C | 17.9°C | +1.6°C |
| Avg Low | 10.0°C | 10.5°C | 10.9°C | 10.5°C | 11.2°C | +1.2°C |
| Avg Rain | 111 mm | 85 mm | 124 mm | 120 mm | 97 mm | -14 mm |
August temperatures in Kilmarnock have risen by about 0.9°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 5.3°C (1986) to a record high of 25.2°C (1995).
Rainfall in August is about average for rainfall, averaging 108 mm, with a wettest year of 220 mm.
One of the best times to visit Kilmarnock
August is one of the best times to visit Kilmarnock. Expect days averaging 16.8°C and nights around 10.6°C (mean 13.7°C) — warmer than Kilmarnock's yearly average — with higher rainfall (108 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 | 18.6°C | 15.2°C | 11.8°C | 23.7°C | 9.4°C | 69 mm | 84% | 3.6 m/s | 4 |
| 2024 | 16.7°C | 13.8°C | 11.0°C | 19.9°C | 7.5°C | 163 mm | 87% | 4.5 m/s | 3.3 |
| 2023 | 17.6°C | 14.5°C | 11.3°C | 22.3°C | 8.4°C | 69 mm | 86% | 3.4 m/s | 3.9 |
| 2022 | 18.6°C | 14.8°C | 11.0°C | 24.1°C | 7.0°C | 68 mm | 84% | 2.8 m/s | 4.2 |
| 2021 | 18.0°C | 14.5°C | 11.0°C | 22.8°C | 7.4°C | 82 mm | 86% | 2.7 m/s | 3.5 |
| 2020 | 18.0°C | 14.4°C | 10.9°C | 24.4°C | 6.9°C | 131 mm | 86% | 3.2 m/s | 3.8 |
| 2019 | 17.5°C | 14.7°C | 11.9°C | 23.3°C | 8.3°C | 153 mm | 88% | 3.8 m/s | 3.8 |
| 2018 | 16.3°C | 13.4°C | 10.6°C | 20.4°C | 6.4°C | 120 mm | 87% | 3.3 m/s | 3.3 |
| 2017 | 15.8°C | 12.9°C | 10.0°C | 18.4°C | 7.2°C | 139 mm | 88% | 3.6 m/s | 3.5 |
| 2016 | 16.9°C | 13.9°C | 11.0°C | 20.4°C | 7.9°C | 100 mm | 88% | 3.7 m/s | 3.7 |
| 2015 | 16.1°C | 13.1°C | 10.0°C | 21.1°C | 7.0°C | 98 mm | 86% | 3.5 m/s | 3.7 |
| 2014 | 15.4°C | 12.4°C | 9.5°C | 18.0°C | 5.8°C | 129 mm | 86% | 3.9 m/s | 3.8 |
| 2013 | 16.8°C | 13.8°C | 10.9°C | 19.5°C | 7.7°C | 86 mm | 87% | 3.4 m/s | 3.6 |
| 2012 | 16.8°C | 13.9°C | 11.0°C | 20.4°C | 6.9°C | 143 mm | 89% | 3.2 m/s | 3.8 |
| 2011 | 15.4°C | 12.7°C | 9.9°C | 19.0°C | 7.3°C | 138 mm | 87% | 3 m/s | 3.4 |
| 2010 | 16.1°C | 12.9°C | 9.7°C | 19.5°C | 5.4°C | 97 mm | 86% | 3.2 m/s | 4.2 |
| 2009 | 16.5°C | 14.0°C | 11.5°C | 19.3°C | 8.9°C | 207 mm | 88% | 4.3 m/s | 3.4 |
| 2008 | 16.6°C | 13.9°C | 11.2°C | 19.2°C | 7.8°C | 181 mm | 90% | 3.4 m/s | 3.1 |
| 2007 | 16.1°C | 13.1°C | 10.1°C | 20.2°C | 8.0°C | 128 mm | 88% | 3.6 m/s | 3.6 |
| 2006 | 16.8°C | 13.8°C | 10.7°C | 21.0°C | 8.8°C | 96 mm | 86% | 3.2 m/s | 3.8 |
| 2005 | 16.8°C | 13.5°C | 10.2°C | 19.5°C | 7.0°C | 92 mm | 87% | 3.5 m/s | 3.7 |
| 2004 | 18.0°C | 15.0°C | 12.0°C | 22.8°C | 7.5°C | 192 mm | 88% | 3.2 m/s | 3.6 |
| 2003 | 18.5°C | 14.9°C | 11.3°C | 24.8°C | 6.3°C | 37 mm | 85% | 2.8 m/s | 4.2 |
| 2002 | 17.5°C | 14.3°C | 11.1°C | 21.6°C | 8.4°C | 100 mm | 88% | 2.7 m/s | 3.8 |
| 2001 | 16.6°C | 13.6°C | 10.5°C | 19.8°C | 7.9°C | 103 mm | 88% | 3 m/s | 3.6 |
| 2000 | 17.2°C | 14.0°C | 10.8°C | 21.2°C | 7.5°C | 101 mm | 87% | 2.7 m/s | 3.6 |
| 1999 | 16.9°C | 13.5°C | 10.0°C | 22.7°C | 5.6°C | 77 mm | 85% | 3.3 m/s | 3.9 |
| 1998 | 16.1°C | 13.2°C | 10.4°C | 20.0°C | 6.3°C | 106 mm | 89% | 3.9 m/s | 3.7 |
| 1997 | 19.1°C | 15.4°C | 11.8°C | 23.5°C | 8.4°C | 47 mm | 87% | 3.1 m/s | 4.2 |
| 1996 | 16.8°C | 13.7°C | 10.6°C | 19.8°C | 8.4°C | 81 mm | 87% | 2.9 m/s | 3.7 |
| 1995 🔥 | 20.0°C | 15.8°C | 11.7°C | 25.2°C | 7.7°C | 29 mm | 82% | 2.7 m/s | 4.6 |
| 1994 | 15.9°C | 12.7°C | 9.5°C | 19.5°C | 6.9°C | 104 mm | 85% | 3.1 m/s | 4 |
| 1993 | 15.2°C | 12.0°C | 8.7°C | 20.6°C | 5.4°C | 72 mm | 87% | 3.1 m/s | 3.9 |
| 1992 | 15.1°C | 12.4°C | 9.6°C | 17.5°C | 6.3°C | 167 mm | 86% | 4.3 m/s | 3.8 |
| 1991 | 17.2°C | 14.2°C | 11.1°C | 22.1°C | 8.3°C | 65 mm | 87% | 3.4 m/s | 3.8 |
| 1990 | 17.1°C | 14.1°C | 11.2°C | 22.6°C | 8.0°C | 102 mm | 87% | 3.7 m/s | 3.3 |
| 1989 | 15.9°C | 13.1°C | 10.2°C | 18.7°C | 6.6°C | 137 mm | 86% | 4.3 m/s | 3.3 |
| 1988 | 15.4°C | 12.7°C | 10.0°C | 20.7°C | 6.3°C | 155 mm | 87% | 4.2 m/s | 3.6 |
| 1987 | 15.7°C | 12.8°C | 9.8°C | 19.4°C | 6.0°C | 121 mm | 87% | 3.2 m/s | 3.7 |
| 1986 ❄️ | 14.6°C | 11.4°C | 8.2°C | 17.7°C | 5.3°C | 109 mm | 82% | 3.4 m/s | 3.7 |
| 1985 🌧️ | 14.2°C | 11.9°C | 9.5°C | 17.4°C | 7.4°C | 220 mm | 89% | 4.6 m/s | 3.1 |
| 1984 | 19.0°C | 15.1°C | 11.1°C | 23.9°C | 7.8°C | 56 mm | 82% | 2.8 m/s | 3.9 |
| 1983 | 18.6°C | 14.8°C | 11.1°C | 22.1°C | 8.0°C | 29 mm | 83% | 2.6 m/s | — |
| 1982 | 16.2°C | 13.3°C | 10.3°C | 23.1°C | 5.7°C | 127 mm | 85% | 4.2 m/s | — |
| 1981 | 17.0°C | 13.5°C | 10.0°C | 21.5°C | 6.9°C | 43 mm | 87% | 2.9 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 16.8°C with lows near 10.6°C (mean 13.7°C), based on 45 years of NASA POWER data.
August averages 108 mm of rainfall in Kilmarnock, about average for rainfall. The wettest on record was 220 mm in 1985.
The hottest August reached 25.2°C in 1995. The coldest dipped to 5.3°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 0.9°C. Daytime highs moved from 17°C to 17.9°C and overnight lows from 10.4°C to 11.2°C over the same span.
August is one of the warmer months of the year in Kilmarnock and about average for rainfall, so plan for around 16.8°C daytime highs and 10.6°C at night.
Not quite — August is the 11th coolest month in Kilmarnock, averaging 13.7°C.
For August in Kilmarnock, pack light layers you can adjust through the day, with typical highs of 16.8°C and lows of 10.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 86% — quite humid.
Average wind speed in August is 3.4 m/s. The windiest August on record averaged 4.6 m/s (1985).
The wettest August on record was 1985 with 220 mm. On average, August sees 108 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 Kilmarnock 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.
