Climate averages 1991–2020

Acharnés weather
in May.

A warm, fairly dry month: the 5th warmest and the 5th driest of the year. Meets the pleasant-weather rule

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

Average high 25.5°C Daytime mean, May
Average low 14.5°C Night-time mean, May
Rainfall 23 mm 5 days with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in Acharnés · average highYear overview

May is a warm month in Acharnés: daytime highs average 25.5°C and nights cool to about 14.5°C. By daytime temperature it is the 5th warmest of the 12 months.

Expect about 23 mm of rain on roughly 5 days, which makes May a fairly dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 13 min on an average May day.

The nearest other city in this atlas is Khalándrion (9 km away). In May its highs average 25.1°C, about as warm as Acharnés, with 23 mm of rain.

Among the 11 cities listed in Greece, Acharnés ranks 2nd of 11 for the warmest May highs and joint 2nd of 11 for the driest May (rainfall, lowest first). The mean May high of those 11 cities is 24.6°C; Acharnés is 0.9°C warmer than that mean.

From May to June, average highs rise by 5.1°C to 30.6°C, and monthly rainfall falls from 23 mm to 11 mm.

The annual picture

May 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, selected 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 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

May 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.