Climate averages 1991–2020

Piraeus weather
in June.

A hot, very dry month: the 3rd warmest and the 3rd driest of the year.

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

Average high 30.6°C Daytime mean, June
Average low 20.3°C Night-time mean, June
Rainfall 11 mm 3 days with ≥1 mm
Daylight 15 h Sunrise to sunset, per day
Every month in Piraeus · average highYear overview

June is a hot month in Piraeus: daytime highs average 30.6°C and nights cool to about 20.3°C. By daytime temperature it is the 3rd warmest of the 12 months.

Expect about 11 mm of rain on roughly 3 days, which makes June a very dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 45 min on an average June day.

The nearest other city in this atlas is Athens (9 km away). In June its highs average 30.5°C, about as warm as Piraeus, with 11 mm of rain.

Among the 11 cities listed in Greece, Piraeus ranks joint 1st of 11 for the warmest June highs and joint 2nd of 11 for the driest June (rainfall, lowest first). The mean June high of those 11 cities is 29.5°C; Piraeus is 1.1°C warmer than that mean.

From June to July, average highs rise by 2.5°C to 33.0°C, and monthly rainfall falls from 11 mm to 6.4 mm.

The annual picture

June 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. 0510152025303540 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

Piraeus climate table

1991–2020
Monthly climate averages for Piraeus, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 12.0°C5.7°C5.7°C527.39.910 h
February 13.0°C6.1°C6.1°C477.210.811 h
March 15.8°C7.9°C7.9°C496.411.912 h
April 19.9°C11.0°C11.0°C295.413.213 h
May 25.3°C15.7°C15.7°C234.914.214 h
June, selected 30.6°C20.3°C20.3°C112.514.715 h
July 33.0°C22.8°C22.8°C6.41.314.515 h
August 32.8°C22.8°C22.8°C4.41.113.614 h
September 28.4°C19.6°C19.6°C152.512.512 h
October 23.0°C15.6°C15.6°C273.811.211 h
November 17.6°C11.3°C11.3°C456.610.210 h
December 13.3°C7.5°C7.5°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

June in nearby cities

Distance from Piraeus

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 Piraeus) is explained once on the Piraeus year overview and on the Sources, method and limits page.

Athens, Acharnés 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.