August is one of the warmer months of the year in Athens, with average highs near 33.3°C and lows around 20.6°C (mean 27°C). It is about average for rainfall, averaging 110 mm of rainfall and 71% relative humidity across the period.
August is one of the warmer months of the year in Athens. Across 45 years of records, the warmest August in Athens was 2007 — when the month averaged 30.1°C — while the coldest was 1994 at 24.7°C. Typical August days reach 33.3°C with nights near 20.6°C. The long-term trend is warming, about 0.2°C per decade.
August is about average for rainfall in Athens, averaging 110 mm of rainfall. The wettest August on record was 2025 with 204 mm, while the driest was 1997 at 41 mm.
Relative humidity in Athens during August averages 71%. The most humid August was 1991 at 82%, and the least humid was 1999 at 58%.
August receives about 5.4 kWh/m²/day of solar energy in Athens. The sunniest August was 2024 at 6.4 kWh/m²/day, and the cloudiest were 1986 and 1992 at 4.8.
Average wind speed in Athens during August is 0.1 m/s. The windiest Augusts were 1990, 1994 and 2004 at 0.2 m/s, while the calmest were 2023, 2024 and 2025, among others at 0.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.6°C | 26.6°C | 27.3°C | 27.1°C | 27.2°C | +0.6°C |
| Avg High | 32.7°C | 32.9°C | 33.8°C | 33.3°C | 33.5°C | +0.8°C |
| Avg Low | 20.4°C | 20.2°C | 20.7°C | 20.9°C | 21.0°C | +0.6°C |
| Avg Rain | 90 mm | 120 mm | 100 mm | 114 mm | 132 mm | +42 mm |
August temperatures in Athens have risen by about 1°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 12.6°C (1986) to a record high of 42°C (1995).
Rainfall in August is about average for rainfall, averaging 110 mm, with a wettest year of 204 mm.
A good time to visit Athens
August is a good time to visit Athens, with days averaging 33.3°C and nights around 20.6°C (mean 27°C, warmer than Athens's yearly average) and higher rainfall. May and September are marginally more temperate, but August still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 🌧️ | 30.7°C | 25.2°C | 19.7°C | 37.8°C | 14.2°C | 204 mm | 78% | 0.1 m/s | 5 |
| 2024 | 35.0°C | 27.9°C | 20.8°C | 38.8°C | 15.6°C | 57 mm | 68% | 0.1 m/s | 6.4 |
| 2023 | 34.8°C | 28.0°C | 21.3°C | 40.6°C | 17.9°C | 138 mm | 71% | 0.1 m/s | 5.9 |
| 2022 | 33.3°C | 27.3°C | 21.3°C | 36.8°C | 19.6°C | 87 mm | 73% | 0.1 m/s | 5.3 |
| 2021 | 33.7°C | 27.5°C | 21.3°C | 38.0°C | 18.1°C | 134 mm | 73% | 0.1 m/s | 5.5 |
| 2020 | 33.4°C | 27.5°C | 21.5°C | 37.5°C | 19.3°C | 169 mm | 74% | 0.1 m/s | 5.5 |
| 2019 | 34.6°C | 27.8°C | 21.1°C | 38.5°C | 16.5°C | 117 mm | 69% | 0.1 m/s | 6 |
| 2018 | 32.1°C | 26.4°C | 20.6°C | 36.1°C | 15.0°C | 113 mm | 76% | 0.1 m/s | 5.8 |
| 2017 | 32.5°C | 26.4°C | 20.3°C | 37.2°C | 17.6°C | 121 mm | 72% | 0.1 m/s | 5.3 |
| 2016 | 34.9°C | 28.6°C | 22.2°C | 40.2°C | 19.4°C | 114 mm | 70% | 0.1 m/s | 5.6 |
| 2015 | 33.0°C | 27.0°C | 21.1°C | 39.5°C | 15.5°C | 170 mm | 72% | 0.1 m/s | 5.6 |
| 2014 | 33.9°C | 26.9°C | 19.9°C | 38.1°C | 14.7°C | 73 mm | 66% | 0.1 m/s | 5.9 |
| 2013 | 30.0°C | 25.0°C | 20.1°C | 34.7°C | 15.4°C | 154 mm | 82% | 0.1 m/s | 5.1 |
| 2012 | 32.1°C | 26.1°C | 20.0°C | 38.2°C | 16.4°C | 109 mm | 75% | 0.1 m/s | 5.2 |
| 2011 | 35.9°C | 28.8°C | 21.6°C | 39.4°C | 17.7°C | 49 mm | 63% | 0.1 m/s | 6 |
| 2010 | 34.4°C | 28.4°C | 22.5°C | 38.8°C | 17.3°C | 121 mm | 75% | 0.1 m/s | 5.5 |
| 2009 | 33.0°C | 26.7°C | 20.3°C | 38.2°C | 17.4°C | 118 mm | 72% | 0.1 m/s | 5.4 |
| 2008 | 33.5°C | 26.9°C | 20.4°C | 39.7°C | 17.2°C | 127 mm | 68% | 0.1 m/s | 5.2 |
| 2007 🔥 | 37.8°C | 30.1°C | 22.5°C | 41.8°C | 19.3°C | 62 mm | 60% | 0.1 m/s | 5.7 |
| 2006 | 35.4°C | 28.6°C | 21.8°C | 39.8°C | 18.2°C | 112 mm | 68% | 0.1 m/s | 5.3 |
| 2005 | 32.4°C | 26.9°C | 21.3°C | 38.3°C | 17.6°C | 163 mm | 79% | 0.1 m/s | 5.5 |
| 2004 | 32.4°C | 25.8°C | 19.1°C | 37.1°C | 14.1°C | 85 mm | 69% | 0.2 m/s | 5.6 |
| 2003 | 31.8°C | 26.5°C | 21.3°C | 35.5°C | 20.0°C | 90 mm | 80% | 0.1 m/s | 5.2 |
| 2002 | 34.8°C | 27.6°C | 20.3°C | 39.0°C | 15.7°C | 63 mm | 62% | 0.1 m/s | 5.7 |
| 2001 | 33.3°C | 26.8°C | 20.3°C | 37.5°C | 16.7°C | 53 mm | 69% | 0.1 m/s | 5.4 |
| 2000 | 33.9°C | 26.8°C | 19.8°C | 39.6°C | 16.0°C | 127 mm | 66% | 0.1 m/s | 5.6 |
| 1999 | 36.5°C | 28.4°C | 20.3°C | 41.7°C | 13.8°C | 69 mm | 58% | 0.1 m/s | 6 |
| 1998 | 34.2°C | 26.8°C | 19.5°C | 38.3°C | 14.3°C | 103 mm | 65% | 0.1 m/s | 5.8 |
| 1997 | 32.2°C | 25.7°C | 19.2°C | 36.2°C | 13.7°C | 41 mm | 69% | 0.1 m/s | 5.9 |
| 1996 | 32.8°C | 26.5°C | 20.3°C | 36.0°C | 17.1°C | 103 mm | 72% | 0.1 m/s | 5.2 |
| 1995 | 34.0°C | 28.0°C | 22.0°C | 42.0°C | 19.5°C | 185 mm | 71% | 0.1 m/s | 5 |
| 1994 ❄️ | 29.9°C | 24.7°C | 19.4°C | 33.8°C | 16.8°C | 170 mm | 80% | 0.2 m/s | 5.3 |
| 1993 | 34.6°C | 27.9°C | 21.2°C | 39.5°C | 17.6°C | 59 mm | 65% | 0.1 m/s | 5.3 |
| 1992 | 30.3°C | 24.8°C | 19.2°C | 36.7°C | 13.3°C | 201 mm | 76% | 0.1 m/s | 4.8 |
| 1991 | 30.0°C | 25.0°C | 20.1°C | 34.5°C | 14.1°C | 154 mm | 82% | 0.1 m/s | 4.9 |
| 1990 | 34.6°C | 27.9°C | 21.2°C | 38.4°C | 17.2°C | 116 mm | 66% | 0.2 m/s | 5.5 |
| 1989 | 30.8°C | 25.3°C | 19.9°C | 35.2°C | 13.8°C | 70 mm | 79% | 0.1 m/s | 5.5 |
| 1988 | 34.3°C | 27.7°C | 21.1°C | 39.6°C | 16.4°C | 105 mm | 69% | 0.1 m/s | 5 |
| 1987 | 35.3°C | 28.5°C | 21.7°C | 39.2°C | 18.2°C | 61 mm | 66% | 0.1 m/s | 5.4 |
| 1986 | 32.8°C | 26.7°C | 20.6°C | 39.7°C | 12.6°C | 124 mm | 68% | 0.1 m/s | 4.8 |
| 1985 | 30.8°C | 25.2°C | 19.5°C | 35.1°C | 14.7°C | 110 mm | 76% | 0.1 m/s | 5 |
| 1984 | 30.5°C | 25.2°C | 19.9°C | 33.4°C | 17.5°C | 89 mm | 80% | 0.1 m/s | 5 |
| 1983 | 36.0°C | 28.7°C | 21.3°C | 41.4°C | 15.7°C | 58 mm | 61% | 0.1 m/s | — |
| 1982 | 31.7°C | 25.7°C | 19.7°C | 35.4°C | 16.2°C | 103 mm | 75% | 0.1 m/s | — |
| 1981 | 32.5°C | 26.1°C | 19.7°C | 38.2°C | 16.2°C | 87 mm | 69% | 0.1 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 33.3°C with lows near 20.6°C (mean 27°C), based on 45 years of NASA POWER data.
August averages 110 mm of rainfall in Athens, about average for rainfall. The wettest on record was 204 mm in 2025.
The hottest August reached 42°C in 1995. The coldest dipped to 12.6°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1°C. Daytime highs moved from 32.3°C to 33.5°C and overnight lows from 20°C to 20.9°C over the same span.
August is one of the warmer months of the year in Athens and about average for rainfall, so plan for around 33.3°C daytime highs and 20.6°C at night.
Not quite — August is the 11th coolest month in Athens, averaging 27°C.
For August in Athens, pack light, breathable clothing and sun protection, with typical highs of 33.3°C and lows of 20.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 71% — moderately humid.
Average wind speed in August is 0.1 m/s. The windiest August on record averaged 0.2 m/s (1990).
The wettest August on record was 2025 with 204 mm. On average, August sees 110 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 Athens 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.
