Climate averages 1991–2020

Acharnés weather
in August.

A hot, very dry month: the 2nd warmest and the driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 32.6°C Daytime mean, August
Average low 21.2°C Night-time mean, August
Rainfall 4.4 mm 1 day with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in Acharnés · average highYear overview

August is a hot month in Acharnés: daytime highs average 32.6°C and nights cool to about 21.2°C. By daytime temperature it is the 2nd warmest of the 12 months.

Expect about 4.4 mm of rain on roughly 1 day, which makes August a very dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 38 min on an average August day.

The nearest other city in this atlas is Khalándrion (9 km away). In August its highs average 32.1°C, about as warm as Acharnés, with 4.4 mm of rain.

Among the 11 cities listed in Greece, Acharnés ranks joint 2nd of 11 for the warmest August highs and joint 2nd of 11 for the driest August (rainfall, lowest first). The mean August high of those 11 cities is 31.7°C; Acharnés is 0.8°C warmer than that mean.

From August to September, average highs fall by 4.2°C to 28.4°C, and monthly rainfall rises from 4.4 mm to 15 mm.

The annual picture

August in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 05101520253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1000

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Acharnés climate table

1991–2020
Monthly climate averages for Acharnés, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 11.7°C4.5°C4.5°C527.39.810 h
February 12.7°C4.7°C4.7°C477.210.811 h
March 15.7°C6.6°C6.6°C496.411.912 h
April 20.0°C9.7°C9.7°C295.413.213 h
May 25.5°C14.5°C14.5°C234.914.214 h
June 30.6°C18.9°C18.9°C112.514.815 h
July 32.8°C21.2°C21.2°C6.41.314.515 h
August, selected 32.6°C21.2°C21.2°C4.41.113.614 h
September 28.4°C18.0°C18.0°C152.512.512 h
October 23.2°C14.3°C14.3°C273.811.211 h
November 17.6°C10.2°C10.2°C456.610.210 h
December 13.0°C6.3°C6.3°C587.89.610 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

August in nearby cities

Distance from Acharnés

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Acharnés) is explained once on the Acharnés year overview and on the Sources, method and limits page.

Athens, Piraeus and Khalándrion lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.