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Greece weather

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EuropeanECMWF
12°
Mainly clear
Feels 13° · Wind 2 mph · Humidity 95%
AmericanNOAA GFS
15°
Clear
Feels 14° · Wind 6 mph · Humidity 79%
GermanDWD ICON
13°
Clear
Feels 12° · Wind 3 mph · Humidity 84%

Latest for Greece: European (ECMWF): 12° Mainly clear · American (NOAA GFS): 15° Clear · German (DWD ICON): 13° Clear.

The weather map: all three models at once

European, American, German side by side around Greece and nearby towns.Live rain radar →
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Hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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10-day forecast, out to 14 days

where the models agree, and where they split

Heading to Greece? Greece, Greece, sits at 38.0°N in a temperate climate zone. The averages on this page are measured at Athens, the main gateway for UK travellers; inland and mountain areas run cooler. Before you lock in outdoor plans, compare how the three global models - European (ECMWF), American (GFS) and German (ICON) - forecast Greece right now. Where they agree you can trust it; the days they split are exactly when a single weather app is least reliable. For a beach trip the rain and wind columns below matter most - that is what makes or breaks a day by the sea.

Where to go in Greece

We cover 11 destinations in Greece, each with its own live three-model comparison and long-run averages. The table shows the typical daytime high in January and July and the wettest month, so you can see how much the coast, the cities and the islands differ before you pick dates.

DestinationJan highJul highWettest monthRain per year
Heraklion, Crete17°C33°CDecember628 mm
Rhodes17°C35°CDecember787 mm
Corfu14°C34°CDecember1027 mm
Zakynthos15°C36°CDecember794 mm
Kos16°C33°CDecember621 mm
Santorini16°C31°CDecember348 mm
Athens14°C36°CDecember391 mm
Kefalonia15°C33°CDecember817 mm
Skiathos12°C26°CJanuary727 mm
Halkidiki13°C33°CDecember543 mm
Mykonos14°C29°CDecember440 mm

Best time to visit Greece

The most comfortable time to visit Greece is usually May, June, September and October, when daytime highs sit in the pleasant 24-33°C range and the heaviest December rain is behind you.

Greece weather by month

what to expect in Greece through the year, 1991-2020 averages

Here is Greece's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to Greece by season.

Jan
14°
5°
Cool
Feb
14°
6°
Cool
Mar
17°
7°
Mild
Apr
21°
10°
Mild
May
24°
15°
Warm
Jun
31°
20°
Hot
Jul
36°
23°
Hot
Aug
34°
22°
Hot
Sep
29°
19°
Hot
Oct
25°
14°
Warm
Nov
19°
9°
Mild
Dec
15°
7°
Mild
Wettest

Greece compared with London

30-year averages: daytime highs month by month, rain and sunlight

Warmer through the year

+7°C

average daytime high: Greece 23°C, London 16°C

Rain over a year

−36%

Greece 391 mm, London 615 mm

Sunlight vs a clear sky

83% vs 63%

solar energy reaching the ground as a share of a cloudless day, averaged over the year (not sunshine hours)

GreeceLondonaverage daytime high, °C, 1991-2020
January, London: 9°CJanuary, Greece: 14°C (+5°C)February, London: 9°CFebruary, Greece: 14°C (+5°C)March, London: 12°CMarch, Greece: 17°C (+5°C)April, London: 15°CApril, Greece: 21°C (+6°C)May, London: 18°CMay, Greece: 24°C (+6°C)June, London: 21°CJune, Greece: 31°C (+10°C)July, London: 24°CJuly, Greece: 36°C (+12°C)August, London: 23°CAugust, Greece: 34°C (+11°C)September, London: 20°CSeptember, Greece: 29°C (+9°C)October, London: 16°COctober, Greece: 25°C (+9°C)November, London: 12°CNovember, Greece: 19°C (+7°C)December, London: 9°CDecember, Greece: 15°C (+6°C)

On 30-year averages Greece runs 7°C warmer than London, with every month between +5°C and +12°C. Over a year it gets 36% less rain than London.

Month by month in numbers
MonthGreeceLondonDifferenceSunlight, GreeceSunlight, London
January14°C9°C+5°C72%58%
February14°C9°C+5°C73%59%
March17°C12°C+5°C79%63%
April21°C15°C+6°C83%67%
May24°C18°C+6°C87%65%
June31°C21°C+10°C93%66%
July36°C24°C+12°C97%67%
August34°C23°C+11°C97%66%
September29°C20°C+9°C91%68%
October25°C16°C+9°C83%62%
November19°C12°C+7°C76%59%
December15°C9°C+6°C70%58%

Daytime highs and lows on this page are 1991-2020 averages. Greece: no weather station within 30 km at a similar height, so lows are ERA5 point values for 2023-2024, corrected month by month by NASA POWER's difference between those two years and 1991-2020, and highs are the uncorrected ERA5 values, which tested closer to station normals; rain is the CHELSA 1981-2010 climatology on a 1 km grid. London: station normals from London (WMO), rain included. Sunlight vs a clear sky is NASA POWER's long-term average of the solar energy reaching the ground as a share of a cloudless day; it compares cloudiness and is not a count of sunshine hours. London stands in for the UK here; other cities have their own climate tables.

Greece month by month

Common questions

When is the best time to visit Greece?
The most comfortable time to visit Greece is usually May, June, September and October, when daytime highs sit in the pleasant 24-33°C range and the heaviest December rain is behind you.
Will it rain in Greece during my trip?
Rain is where forecasts disagree most. Instead of trusting one app, the comparison above lines up the European, American and German models for Greece - check your dates and look for the days they agree; those are the ones you can plan around.
Which forecast is most accurate for Greece?
For destinations abroad we compare three open global models (ECMWF, GFS and ICON) and show you where they disagree, so you can judge the confidence yourself.
How much warmer is Greece than London?
On 30-year averages (1991-2020) the daytime high in Greece is about 7°C warmer than in London (23°C against 16°C), with the monthly gap between 5°C and 12°C.

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