Weather in Greece - today, tomorrow and 14-day forecast

Right now temperatures across Greece range from 20° to 32°. Below: today's conditions city by city, a live weather map, the 14-day outlook and month-by-month climate to help you pick the best time to travel.

Country values are the median of forecasts from 10 cities; the range shows local differences. Methodology.

Weather in Greece's cities today

☀️Athens 32°no rain ☀️Zakynthos 32°💧 0.1 mm ☀️Thessaloniki 30°💧 0.3 mm ☀️Lesbos 30°no rain ☀️Kefalonia 30°no rain ☀️Andros 30°no rain ☀️Rhodes 29°💧 0.1 mm ☀️Samos 28°no rain ☀️Thassos 28°💧 1.5 mm ☀️Crete 20°no rain

Weather map - today's temperatures

Pill colour shows today's daytime temperature. Click a city for its full 14-day forecast.

Next days in Greece

today☀️ 30°💧 0.2 mm

Sun☀️ 32°💧 0.5 mm

Mon☀️ 29°💧 0.4 mm

Tue☀️ 28°💧 0.5 mm

Wed☀️ 26°💧 0.4 mm

Thu☀️ 26°💧 0.3 mm

Fri☀️ 26°💧 1 mm

Sat☀️ 26°💧 1.9 mm

Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Sunday 6 Sept in Greece, the forecast high is 32°C. Typical daytime temperatures at this time of year range from 26°C to 29°C, so it will be exceptionally warm. It is warmer than 96% of similar days.

Saturday 5 Sept

30°Cwarmer than usual

usually 26°C–30°C

warmer than 86% of similar days

night: exceptionally warm rain: more rain than usual wind: lighter than usual

Sunday 6 Sept

32°Cexceptionally warm

usually 26°C–29°C

warmer than 96% of similar days

night: exceptionally warm rain: exceptionally wet wind: typical

Monday 7 Sept

29°Cwarmer than usual

usually 26°C–29°C

warmer than 82% of similar days

night: exceptionally warm rain: more rain than usual wind: typical

Tuesday 8 Sept

28°Cnear normal

usually 26°C–29°C

night: exceptionally warm rain: more rain than usual wind: typical

Wednesday 9 Sept

26°Cnear normal

usually 26°C–29°C

night: exceptionally warm rain: more rain than usual wind: typical

Thursday 10 Sept

26°Ccooler than usual

usually 26°C–29°C

cooler than 74% of similar days

night: exceptionally warm rain: more rain than usual wind: exceptionally light

Friday 11 Sept

26°Ccooler than usual

usually 26°C–29°C

cooler than 79% of similar days

night: exceptionally warm rain: exceptionally wet wind: exceptionally light

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →

cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 27°C by day. The coolest year was 1996 (24°C) and the warmest was 2008 (30°C). The current forecast averages 28°C - higher than in 73% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

Weather warnings - Greece

Heatyellow level

from 5 Sept, 12:00 to 5 Sept, 18:00 · 2 regions

Areas: Central Makedonia, Epirus

High temperatures and risk of overheating. Drink plenty of water, avoid the midday sun and look after the elderly.

Source: national weather service via Meteoalarm (EUMETNET). Yellow - be aware, orange - be prepared, red - take action.

14-day forecast - Greece

Greece - 14-day weather forecast infographic

Greece 30 & 45-day weather - long-range outlook

Next 16 days · forecast

26°

around 24° at night · days with rain: 7

Weeks 3-4 · avg for September

29°

around 20° at night · rain chance 19%

Weeks 5-7 · avg for October

24°

around 16° at night · rain chance 27%

The 30 & 45-day outlook for Greece: the next 16 days are a numerical forecast updated daily - on average 26° by day and 24° at night. Further out we rely on multi-year climate averages: around 29° in September, and about 24° in October. Forecasts beyond two weeks are indicative only.

Today vs the next days - Greece cities

City	Today	+3 days	+7 days	Rain today
☀️ Athens	32℃	31℃	28℃	-
☀️ Zakynthos	32℃	29℃	27℃	0.1 mm
☀️ Thessaloniki	30℃	28℃	29℃	0.3 mm
☀️ Lesbos	30℃	28℃	30℃	-
☀️ Kefalonia	30℃	28℃	25℃	-
☀️ Andros	30℃	25℃	26℃	-
☀️ Rhodes	29℃	27℃	25℃	0.1 mm
☀️ Samos	28℃	23℃	24℃	-
☀️ Thassos	28℃	24℃	25℃	1.5 mm
☀️ Crete	20℃	21℃	21℃	-

Day-by-day forecast for Greece

Saturday5 September 2026

☀️30°clear sky

night 25° · evening 29° · rain 0.225 mm · humidity 42% · wind 5 m/s · clouds 3.5%

Sunday6 September 2026

☀️32°clear sky

night 26° · evening 30° · rain 0.525 mm · humidity 34% · wind 5 m/s · clouds 15%

Monday7 September 2026

☀️29°clear sky

night 25° · evening 28° · rain 0.42 mm · humidity 38.5% · wind 6 m/s · clouds 13%

Tuesday8 September 2026

☀️28°clear sky

night 24° · evening 27° · rain 0.51 mm · humidity 43% · wind 6 m/s · clouds 2.5%

Wednesday9 September 2026

☀️26°clear sky

night 24° · evening 27° · rain 0.36 mm · humidity 43.5% · wind 6 m/s · clouds 5%

Thursday10 September 2026

☀️26°clear sky

night 23° · evening 26° · rain 0.315 mm · humidity 55.5% · wind 4 m/s · clouds 5%

Friday11 September 2026

☀️26°clear sky

night 24° · evening 26° · rain 0.96 mm · humidity 54.5% · wind 4 m/s · clouds 5%

Saturday12 September 2026

☀️26°clear sky

night 25° · evening 26° · rain 1.86 mm · humidity 56% · wind 4 m/s · clouds 60.5%

Sunday13 September 2026

🌧️27°light rain

night 25° · evening 26° · rain 1.155 mm · humidity 55% · wind 4 m/s · clouds 7%

Monday14 September 2026

🌤️25°a few clouds

night 22° · evening 25° · rain 1.5150000000000001 mm · humidity 63.5% · wind 4 m/s · clouds 43%

Tuesday15 September 2026

🌧️25°light rain

night 23° · evening 25° · rain 0.54 mm · humidity 57% · wind 4 m/s · clouds 2%

Wednesday16 September 2026

☀️25°clear sky

night 24° · evening 26° · rain 1.665 mm · humidity 61.5% · wind 6 m/s · clouds 11%

Thursday17 September 2026

🌧️26°light rain

night 25° · evening 27° · rain 0.78 mm · humidity 54.5% · wind 5 m/s · clouds 32%

Friday18 September 2026

☁️26°overcast clouds

night 23° · evening 25° · rain 1.425 mm · humidity 60.5% · wind 4 m/s · clouds 16.5%

Saturday19 September 2026

🌧️24°light rain

night 21° · evening 24° · rain 1.59 mm · humidity 61% · wind 5 m/s · clouds 6%

Sunday20 September 2026

🌧️22°light rain

night 21° · evening 21° · rain 3.415 mm · humidity 63% · wind 6 m/s · clouds 40%

Pollen in Greece - info for allergy sufferers

Today ragweed pollen is highest in Greece - about 12 grains/m³, moderate level. Most allergy sufferers should not feel strong symptoms. Pollen levels are a CAMS model forecast and are indicative.

Sea temperature - Greece

Beach	Water today	Water week avg	Waves	How's the water?
Thessaloniki	30℃	30℃	0 m	very warm
Zakynthos	30℃	30℃	0.2 m	very warm
Kefalonia	30℃	29℃	0.2 m	very warm
Rhodes	29℃	29℃	0.2 m	very warm
Athens	28℃	28℃	0.2 m	very warm
Thassos	27℃	27℃	0.1 m	very warm
Crete	27℃	27℃	0.5 m	very warm
Samos	25℃	25℃	0.4 m	warm
Lesbos	24℃	24℃	0.3 m	warm
Andros	24℃	25℃	1.1 m	warm

Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Air quality and smog in Greece

City	PM2.5 (µg/m³)	PM10 (µg/m³)	Air quality
Ateny	11	15.3	very good
Larissa	9.4	15	very good
Patras	7.8	10.2	very good

Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-05, 04:00).

Greece weather through the year

Greece weather month by month - when is the best time to go?

January (14°)February (15°)March (17°)April (21°)May (25°)June (30°)July (32°)August (32°)September (29°)October (24°)November (19°)December (16°)

Weather in other countries in Europe

HungaryGermanyIcelandFranceIrelandFinland

Public holidays in Greece - when are the long weekends?

Next long weekend in Greece: Christmas Day (25 December, Friday) - Friday–Sunday (3 days off).

2026

28 OctoberWednesday

Ochi Day

25 DecemberFriday

Christmas Day

long weekend

26 DecemberSaturday

St. Stephen's Day

falls on a weekend

2027

1 JanuaryFriday

New Year's Day

long weekend

6 JanuaryWednesday

Epiphany

15 MarchMonday

Clean Monday

long weekend

25 MarchThursday

Annunciation / Independence Day

long weekend + bridge day

30 AprilFriday

Good Friday

long weekend

1 MaySaturday

Labour Day

falls on a weekend

2 MaySunday

Easter Sunday

falls on a weekend

3 MayMonday

Easter Monday

long weekend

20 JuneSunday

Pentecost

falls on a weekend

Public holidays (statutory days off) - shops, offices and some attractions may be closed. A "bridge day" is a workday between a holiday and the weekend worth taking as leave. Lunar holiday dates marked as tentative may shift by one day after the official announcement.

Calendar sources

Nager.Date public holiday database

FAQ - Greece weather

What is the weather like in Greece today?

Today it is about 30° during the day and 25° at night, clear sky.

How far ahead can I check the forecast for Greece?

This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.