August is one of the cooler months of the year in Clare, with average highs near 15.4°C and lows around 5.1°C (mean 10.3°C). It is a relatively wet time of year, averaging 44 mm of rainfall and 75% relative humidity across the period.
August is one of the cooler months of the year in Clare. Across 45 years of records, the warmest August in Clare was 2024 — when the month averaged 13.4°C — while the coldest was 1989 at 7.9°C. Typical August days reach 15.4°C with nights near 5.1°C. The long-term trend is warming, about 0.3°C per decade.
August is a relatively wet time of year in Clare, averaging 44 mm of rainfall. The wettest August on record was 1992 with 85 mm, while the driest were 2006 and 2014 at 6 mm.
Relative humidity in Clare during August averages 75%. The most humid August was 1989 at 83%, and the least humid was 1982 at 60%.
August receives about 3.6 kWh/m²/day of solar energy in Clare. The sunniest Augusts were 2006 and 2007 at 4.1 kWh/m²/day, and the cloudiest was 2001 at 3.2.
Average wind speed in Clare during August is 3.2 m/s. The windiest August was 1991 at 4.1 m/s, while the calmest was 2014 at 2.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 9.9°C | 10.0°C | 10.4°C | 10.1°C | 11.3°C | +1.4°C |
| Avg High | 15.0°C | 15.0°C | 15.7°C | 15.2°C | 16.5°C | +1.5°C |
| Avg Low | 4.8°C | 4.9°C | 5.0°C | 5.1°C | 6.0°C | +1.2°C |
| Avg Rain | 50 mm | 43 mm | 39 mm | 46 mm | 40 mm | -10 mm |
August temperatures in Clare have risen by about 1.1°C between 1981–1985 and 2021–2025.
August has ranged from a record low of -1.6°C (1992) to a record high of 27.8°C (2024).
Rainfall in August is a relatively wet time of year, averaging 44 mm, with a wettest year of 85 mm.
A quieter season to visit Clare
If your dates are flexible, the more temperate months of December and March tend to be the most comfortable for visiting Clare. That said, August — with days averaging 15.4°C and nights around 5.1°C (mean 10.3°C) and moderate rainfall (44 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 16.1°C | 10.8°C | 5.6°C | 24.5°C | 1.9°C | 33 mm | 72% | 3.2 m/s | 3.6 |
| 2024 🔥 | 18.9°C | 13.4°C | 7.9°C | 27.8°C | 3.8°C | 28 mm | 68% | 3.5 m/s | 3.7 |
| 2023 | 18.0°C | 12.0°C | 6.0°C | 25.7°C | 2.0°C | 32 mm | 72% | 2.5 m/s | 3.7 |
| 2022 | 15.2°C | 10.7°C | 6.2°C | 21.4°C | 2.0°C | 71 mm | 78% | 3.5 m/s | 3.4 |
| 2021 | 16.2°C | 10.8°C | 5.4°C | 22.9°C | 1.1°C | 31 mm | 74% | 2.8 m/s | 3.9 |
| 2020 | 14.9°C | 9.9°C | 5.0°C | 23.7°C | 0.9°C | 44 mm | 74% | 3.1 m/s | 3.5 |
| 2019 | 15.2°C | 9.7°C | 4.1°C | 20.4°C | 0.6°C | 26 mm | 73% | 3 m/s | 3.8 |
| 2018 | 15.7°C | 10.6°C | 5.4°C | 23.6°C | 1.0°C | 59 mm | 69% | 3.9 m/s | 3.7 |
| 2017 | 14.9°C | 9.7°C | 4.5°C | 21.1°C | -0.7°C | 70 mm | 76% | 3.3 m/s | 3.5 |
| 2016 | 15.4°C | 10.2°C | 5.1°C | 21.2°C | 1.6°C | 55 mm | 77% | 2.8 m/s | 3.8 |
| 2015 | 14.7°C | 9.8°C | 4.9°C | 20.0°C | 1.2°C | 61 mm | 79% | 2.8 m/s | 3.4 |
| 2014 | 15.6°C | 9.8°C | 4.0°C | 22.6°C | 0.0°C | 6 mm | 73% | 2.1 m/s | 3.9 |
| 2013 | 15.3°C | 10.8°C | 6.3°C | 23.1°C | 2.5°C | 50 mm | 82% | 3.5 m/s | 3.5 |
| 2012 | 14.7°C | 9.9°C | 5.1°C | 20.5°C | 2.1°C | 33 mm | 76% | 3.3 m/s | 3.6 |
| 2011 | 16.9°C | 11.6°C | 6.4°C | 24.5°C | 2.0°C | 47 mm | 76% | 2.7 m/s | 3.6 |
| 2010 | 13.7°C | 9.2°C | 4.7°C | 19.1°C | 1.9°C | 57 mm | 79% | 3.6 m/s | 3.3 |
| 2009 | 17.2°C | 11.7°C | 6.3°C | 25.3°C | 2.3°C | 21 mm | 74% | 3.6 m/s | 3.6 |
| 2008 | 13.1°C | 8.5°C | 3.9°C | 18.8°C | 0.3°C | 51 mm | 80% | 3 m/s | 3.4 |
| 2007 | 17.1°C | 11.4°C | 5.6°C | 27.1°C | 1.3°C | 12 mm | 69% | 3.2 m/s | 4.1 |
| 2006 | 17.9°C | 11.5°C | 5.1°C | 24.2°C | 1.2°C | 6 mm | 70% | 2.5 m/s | 4.1 |
| 2005 | 16.8°C | 11.1°C | 5.4°C | 24.9°C | 1.5°C | 45 mm | 70% | 3.4 m/s | 3.7 |
| 2004 | 15.5°C | 10.3°C | 5.0°C | 25.6°C | 0.0°C | 52 mm | 74% | 3.2 m/s | 3.6 |
| 2003 | 14.0°C | 9.0°C | 4.0°C | 21.7°C | 0.4°C | 73 mm | 74% | 3.6 m/s | 3.4 |
| 2002 | 15.9°C | 10.0°C | 4.0°C | 22.0°C | 0.0°C | 22 mm | 68% | 2.9 m/s | 3.7 |
| 2001 | 15.2°C | 10.3°C | 5.4°C | 21.6°C | 1.5°C | 63 mm | 74% | 3.6 m/s | 3.2 |
| 2000 | 14.5°C | 9.7°C | 4.9°C | 20.1°C | 0.8°C | 49 mm | 77% | 3 m/s | 3.4 |
| 1999 | 16.6°C | 10.8°C | 5.0°C | 23.8°C | -0.3°C | 31 mm | 70% | 3 m/s | 3.9 |
| 1998 | 16.0°C | 10.8°C | 5.7°C | 22.3°C | 2.0°C | 34 mm | 75% | 2.8 m/s | 3.6 |
| 1997 | 14.3°C | 9.3°C | 4.4°C | 20.4°C | 1.1°C | 54 mm | 73% | 3 m/s | 3.4 |
| 1996 | 14.0°C | 9.6°C | 5.2°C | 20.4°C | 2.2°C | 64 mm | 80% | 3.3 m/s | 3.5 |
| 1995 | 16.6°C | 10.9°C | 5.1°C | 24.8°C | 1.9°C | 16 mm | 73% | 2.9 m/s | 3.8 |
| 1994 | 14.8°C | 9.3°C | 3.8°C | 22.2°C | 0.9°C | 11 mm | 72% | 2.5 m/s | 3.9 |
| 1993 | 17.2°C | 11.6°C | 5.9°C | 23.1°C | 0.5°C | 33 mm | 66% | 3.3 m/s | 3.8 |
| 1992 🌧️ | 14.0°C | 9.0°C | 4.0°C | 20.8°C | -1.6°C | 85 mm | 76% | 3.6 m/s | 3.6 |
| 1991 | 13.9°C | 9.5°C | 5.0°C | 19.8°C | 0.6°C | 49 mm | 79% | 4.1 m/s | 3.4 |
| 1990 | 12.9°C | 9.0°C | 5.0°C | 17.1°C | 3.0°C | 49 mm | 82% | 3.9 m/s | 3.3 |
| 1989 ❄️ | 12.3°C | 7.9°C | 3.4°C | 19.0°C | -0.9°C | 51 mm | 83% | 3.3 m/s | 3.7 |
| 1988 | 15.8°C | 10.3°C | 4.9°C | 23.6°C | 0.7°C | 20 mm | 74% | 3 m/s | 3.7 |
| 1987 | 14.5°C | 9.6°C | 4.7°C | 19.5°C | 0.3°C | 28 mm | 79% | 2.9 m/s | 3.5 |
| 1986 | 14.0°C | 9.3°C | 4.6°C | 19.0°C | 1.0°C | 78 mm | 78% | 3.2 m/s | 3.5 |
| 1985 | 14.3°C | 9.4°C | 4.5°C | 22.4°C | 1.0°C | 84 mm | 78% | 3.3 m/s | 3.4 |
| 1984 | 14.2°C | 9.8°C | 5.4°C | 20.3°C | 1.3°C | 68 mm | 78% | 3.9 m/s | 3.5 |
| 1983 | 16.0°C | 10.5°C | 5.0°C | 21.9°C | 0.5°C | 44 mm | 75% | 2.9 m/s | — |
| 1982 | 19.7°C | 12.9°C | 6.0°C | 26.3°C | 0.8°C | 14 mm | 60% | 2.6 m/s | — |
| 1981 | 13.8°C | 9.4°C | 4.9°C | 17.6°C | 0.0°C | 63 mm | 79% | 3.9 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 15.4°C with lows near 5.1°C (mean 10.3°C), based on 45 years of NASA POWER data.
August averages 44 mm of rainfall in Clare, a relatively wet time of year. The wettest on record was 85 mm in 1992.
The hottest August reached 27.8°C in 2024. The coldest dipped to -1.6°C in 1992.
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 15.6°C to 16.9°C and overnight lows from 5.2°C to 6.2°C over the same span.
August is one of the cooler months of the year in Clare and a relatively wet time of year, so plan for around 15.4°C daytime highs and 5.1°C at night.
Not quite — August is the 3rd coolest month in Clare, averaging 10.3°C.
For August in Clare, pack warm layers and a jacket for chilly mornings, with typical highs of 15.4°C and lows of 5.1°C.
Relative humidity in August averages 75% — moderately humid.
Average wind speed in August is 3.2 m/s. The windiest August on record averaged 4.1 m/s (1991).
The wettest August on record was 1992 with 85 mm. On average, August sees 44 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 Clare 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.
