Climate and Average Weather Year Round in Greece

We show the climate in Greece by comparing the average weather in 3 representative places: Athens, Thessaloníki, and Irákleion.

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Athens
Greece
Irákleion
Greece
Map

Average High and Low Temperature in Greece

Average High and Low Temperature in GreeceJanFebMarAprMayJunJulAugSepOctNovDec30°F30°F35°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°F7442925569349048488459NowNowAthensAthensThessaloníkiThessaloníkiIrákleionIrákleion
The daily average high and low air temperature at 2 meters above the ground.
HighJanFebMarAprMayJunJulAugSepOctNovDec
Athens 55°F56°F60°F68°F77°F86°F91°F90°F83°F73°F64°F57°F
Thessaloníki 48°F51°F57°F66°F76°F85°F89°F88°F80°F69°F58°F50°F
Irákleion 59°F59°F62°F68°F74°F80°F84°F83°F80°F74°F67°F62°F
LowJanFebMarAprMayJunJulAugSepOctNovDec
Athens 42°F42°F45°F51°F59°F67°F73°F73°F66°F59°F51°F45°F
Thessaloníki 34°F36°F41°F47°F56°F64°F68°F68°F61°F53°F44°F37°F
Irákleion 49°F48°F50°F54°F60°F67°F72°F72°F68°F63°F57°F52°F

Athens

Average Hourly Temperature in AthensJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcoldcoldcoolcoolwarmwarmhotvery coldcomfortable

Thessaloníki

Average Hourly Temperature in ThessaloníkiJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowvery coldvery coldcoldcoldcoolcoolcomfortablewarmhotvery coldwarmvery cold

Irákleion

Average Hourly Temperature in IrákleionJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcoldcoldcoldcoolcoolcomfortablewarmwarmcold
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Chance of Clearer Skies in Greece

Chance of Clearer Skies in GreeceJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%9955945059NowNowAthensAthensThessaloníkiThessaloníkiIrákleionIrákleion
The percentage of time the sky is clear, mostly clear, or partly cloudy (i.e., less than 60% of the sky is covered by clouds).
Clearer SkiesJanFebMarAprMayJunJulAugSepOctNovDec
Athens 60%59%61%65%72%88%98%96%83%65%58%56%
Thessaloníki 55%53%55%56%64%80%92%90%76%61%54%53%
Irákleion 63%66%70%72%78%93%100%99%91%73%63%61%

Daily Chance of Precipitation in Greece

Daily Chance of Precipitation in GreeceJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%2531034NowNowAthensAthensThessaloníkiThessaloníkiIrákleionIrákleion
The percentage of days in which precipitation is observed, excluding trace quantities.
Days of Precip.JanFebMarAprMayJunJulAugSepOctNovDec
Athens 6.4d5.7d5.3d4.1d2.7d1.8d1.1d1.3d2.3d4.2d6.4d7.0d
Thessaloníki 4.7d4.7d4.9d5.2d5.6d4.4d3.4d3.3d4.1d5.2d6.2d6.3d
Irákleion 9.6d8.2d6.1d3.3d2.0d0.7d0.1d0.4d1.7d5.1d7.3d9.5d

Average Monthly Rainfall in Greece

Average Monthly Rainfall in GreeceJanFebMarAprMayJunJulAugSepOctNovDec0.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 in3.0 in3.0 in2.50.22.00.72.7NowNowAthensAthensThessaloníkiThessaloníkiIrákleionIrákleion
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.
RainfallJanFebMarAprMayJunJulAugSepOctNovDec
Athens 1.8″1.7″1.6″1.0″0.6″0.4″0.2″0.2″0.5″1.4″2.4″2.2″
Thessaloníki 1.1″1.1″1.2″1.2″1.2″1.0″0.8″0.7″1.1″1.6″1.9″1.7″
Irákleion 2.5″2.2″1.3″0.6″0.3″0.1″0.0″0.1″0.3″1.2″2.0″2.5″

Hours of Daylight in Greece

Hours of Daylight in GreeceJanFebMarAprMayJunJulAugSepOctNovDec4 hr4 hr6 hr6 hr8 hr8 hr10 hr10 hr12 hr12 hr14 hr14 hr16 hr16 hr18 hr18 hr20 hr20 hr14.89.5NowNowAthensAthensThessaloníkiThessaloníkiIrákleionIrákleion
The number of hours during which the Sun is at least partly above the horizon.
DaylightJanFebMarAprMayJunJulAugSepOctNovDec
Athens 9.9h10.8h12.0h13.2h14.3h14.8h14.5h13.6h12.4h11.2h10.1h9.6h
Thessaloníki 9.6h10.7h12.0h13.3h14.5h15.0h14.7h13.7h12.4h11.1h9.9h9.3h
Irákleion 10.1h10.9h12.0h13.1h14.1h14.5h14.3h13.4h12.4h11.3h10.3h9.8h

Chance of Muggy Conditions in Greece

Chance of Muggy Conditions in GreeceJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%81847NowNowAthensAthensThessaloníkiThessaloníki
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).
Muggy daysJanFebMarAprMayJunJulAugSepOctNovDec
Athens 0.0d0.0d0.0d0.0d0.0d0.5d1.8d2.3d1.6d0.7d0.0d0.0d
Thessaloníki 0.0d0.0d0.0d0.0d0.1d1.9d4.4d4.4d1.2d0.2d0.0d0.0d
Irákleion 0.0d0.0d0.0d0.0d0.7d5.1d11.3d13.5d7.6d2.0d0.1d0.0d

Average Wind Speed in Greece

Average Wind Speed in GreeceJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph11.38.06.95.014.39.5NowNowAthensAthensThessaloníkiThessaloníkiIrákleionIrákleion
The average of mean hourly wind speeds at 10 meters above the ground.
Wind Speed (mph)JanFebMarAprMayJunJulAugSepOctNovDec
Athens 11.011.010.08.88.28.49.910.29.39.910.310.8
Thessaloníki 6.66.86.56.15.65.55.45.15.45.76.26.5
Irákleion 13.814.012.711.19.810.813.212.911.511.012.013.3

Average Water Temperature in Greece

Average Water Temperature in GreeceJanFebMarAprMayJunJulAugSepOctNovDec55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F78585560NowNowAthensAthensThessaloníkiThessaloníkiIrákleionIrákleion
The daily average wide-area surface water temperature.
Water Temp.JanFebMarAprMayJunJulAugSepOctNovDec
Athens 59°F58°F58°F60°F65°F72°F76°F78°F76°F72°F67°F62°F
Thessaloníki 56°F55°F55°F59°F65°F73°F77°F79°F75°F69°F63°F59°F
Irákleion 61°F60°F60°F62°F66°F72°F76°F77°F76°F73°F68°F64°F

Tourism Score in Greece

Tourism Score in GreeceJanFebMarAprMayJunJulAugSepOctNovDec002244668810108.12.10.58.83.7NowNowAthensAthensThessaloníkiThessaloníkiIrákleionIrákleion
The tourism score, which favors clear, rainless days with perceived temperatures between 65°F and 80°F.

Beach/Pool Score in Greece

Beach/Pool Score in GreeceJanFebMarAprMayJunJulAugSepOctNovDec002244668810109.10.1NowNowAthensAthensThessaloníkiThessaloníkiIrákleionIrákleion
The beach/pool score, which favors clear, rainless days with perceived temperatures between 75°F and 90°F.

Growing Season in Greece

Growing Season in GreeceJanFebMarAprMayJunJulAugSepOctNovDec0%0%20%20%40%40%60%60%80%80%100%100%NowNowAthensAthensThessaloníkiThessaloníkiIrákleionIrákleion
The percentage chance that a given day is within the growing season, defined as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Growing Degree Days in Greece

Growing Degree Days in GreeceJanFebMarAprMayJunJulAugSepOctNovDec1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°F6,000°F6,000°FNowNowAthensAthensThessaloníkiThessaloníkiIrákleionIrákleion
The average growing degree days accumulated over the course of the year, where growing degree days are defined as the integral of warmth above a base temperature (50°F in this case).

Average Daily Incident Shortwave Solar Energy in Greece

Average Daily Incident Shortwave Solar Energy in GreeceJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWh8.12.17.88.5NowNowAthensAthensThessaloníkiThessaloníkiIrákleionIrákleion
The average daily shortwave solar energy reaching the ground per square meter.
Solar Energy (kWh)JanFebMarAprMayJunJulAugSepOctNovDec
Athens 2.43.34.66.17.27.98.07.15.64.02.72.1
Thessaloníki 2.13.04.25.56.67.57.66.75.23.62.31.9
Irákleion 2.73.75.16.57.58.38.37.56.14.43.12.4

This report illustrates the typical weather for Athens, Thessaloníki, and Irákleion year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used on this page vary between places and are discussed in detail on each place's dedicated page:

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

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