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Best time to visit Greece

In Athens: April to May and October to November — the months averaging 18–27 °C by day. No other month of the twelve falls inside that band in Athens.

Greece is not one climate. Each reference city below is answered on its own numbers.

Athens

  1. January: 12 °C by day, 5 °C at night, 58 mm of rain
  2. February: 13 °C by day, 6 °C at night, 48 mm of rain
  3. March: 16 °C by day, 7 °C at night, 52 mm of rain
  4. April: 20 °C by day, 11 °C at night, 27 mm of rain, recommended
  5. May: 25 °C by day, 15 °C at night, 23 mm of rain, recommended
  6. June: 30 °C by day, 20 °C at night, 15 mm of rain
  7. July: 33 °C by day, 23 °C at night, 8 mm of rain
  8. August: 33 °C by day, 22 °C at night, 7 mm of rain
  9. September: 28 °C by day, 19 °C at night, 20 mm of rain
  10. October: 23 °C by day, 15 °C at night, 26 mm of rain, recommended
  11. November: 18 °C by day, 11 °C at night, 54 mm of rain, recommended
  12. December: 14 °C by day, 7 °C at night, 71 mm of rain
Warmest
July, 33 °C
Coolest
January, 12 °C
Driest
August, 7 mm
Wettest
December, 71 mm

Thessaloniki

April to May and September to October — 18–27 °C by day. No other month of the twelve falls inside that band in Thessaloniki.

  1. January: 9 °C by day, 1 °C at night, 57 mm of rain
  2. February: 11 °C by day, 3 °C at night, 46 mm of rain
  3. March: 14 °C by day, 5 °C at night, 64 mm of rain
  4. April: 19 °C by day, 9 °C at night, 55 mm of rain, recommended
  5. May: 24 °C by day, 15 °C at night, 64 mm of rain, recommended
  6. June: 29 °C by day, 20 °C at night, 50 mm of rain
  7. July: 32 °C by day, 22 °C at night, 39 mm of rain
  8. August: 31 °C by day, 22 °C at night, 40 mm of rain
  9. September: 26 °C by day, 17 °C at night, 57 mm of rain, recommended
  10. October: 21 °C by day, 13 °C at night, 62 mm of rain, recommended
  11. November: 15 °C by day, 8 °C at night, 60 mm of rain
  12. December: 10 °C by day, 3 °C at night, 78 mm of rain
Warmest
July, 32 °C
Coolest
January, 9 °C
Driest
July, 39 mm
Wettest
December, 78 mm

Heraklion

March to May and October to November — 18–27 °C by day. No other month of the twelve falls inside that band in Heraklion.

  1. January: 15 °C by day, 9 °C at night, 68 mm of rain
  2. February: 16 °C by day, 9 °C at night, 68 mm of rain
  3. March: 18 °C by day, 9 °C at night, 60 mm of rain, recommended
  4. April: 21 °C by day, 12 °C at night, 34 mm of rain, recommended
  5. May: 26 °C by day, 16 °C at night, 29 mm of rain, recommended
  6. June: 30 °C by day, 20 °C at night, 11 mm of rain
  7. July: 31 °C by day, 23 °C at night, 3 mm of rain
  8. August: 31 °C by day, 23 °C at night, 6 mm of rain
  9. September: 29 °C by day, 20 °C at night, 22 mm of rain
  10. October: 24 °C by day, 17 °C at night, 35 mm of rain, recommended
  11. November: 20 °C by day, 13 °C at night, 42 mm of rain, recommended
  12. December: 16 °C by day, 10 °C at night, 65 mm of rain
Warmest
July, 31 °C
Coolest
January, 15 °C
Driest
July, 3 mm
Wettest
January, 68 mm

How this is worked out: a month qualifies when its mean daytime high falls between 18 °C and 27 °C. Where more than five qualify, the answer is the driest run of consecutive qualifying months; where none do, it is the driest three months in a row if the year is hot throughout, or the warmest three if it never gets there. The figures are the thirty-year monthly averages charted below, and they are averages, not a forecast — any single year can miss them by a wide margin.

Athens

Long-term averages for Athens: the mean daily high, the mean overnight low and the mean monthly rainfall across 30 years of ERA5 reanalysis data (1995–2024).

DayNight
5101520253035°C0100mmJanFebMarAprMayJunJulAugSepOctNovDecJanuary: Day 12 °C, Night 5 °C, Rain 58 mm. February: Day 13 °C, Night 6 °C, Rain 48 mm. March: Day 16 °C, Night 7 °C, Rain 52 mm. April: Day 20 °C, Night 11 °C, Rain 27 mm. May: Day 25 °C, Night 15 °C, Rain 23 mm. June: Day 30 °C, Night 20 °C, Rain 15 mm. July: Day 33 °C, Night 23 °C, Rain 8 mm. August: Day 33 °C, Night 22 °C, Rain 7 mm. September: Day 28 °C, Night 19 °C, Rain 20 mm. October: Day 23 °C, Night 15 °C, Rain 26 mm. November: Day 18 °C, Night 11 °C, Rain 54 mm. December: Day 14 °C, Night 7 °C, Rain 71 mm
Show the monthly table
Athens
MonthDay (°C)Night (°C)Rain (mm)
January12558
February13648
March16752
April201127
May251523
June302015
July33238
August33227
September281920
October231526
November181154
December14771

Thessaloniki

Long-term averages for Thessaloniki: the mean daily high, the mean overnight low and the mean monthly rainfall across 30 years of ERA5 reanalysis data (1995–2024).

DayNight
0102030°C0100mmJanFebMarAprMayJunJulAugSepOctNovDecJanuary: Day 9 °C, Night 1 °C, Rain 57 mm. February: Day 11 °C, Night 3 °C, Rain 46 mm. March: Day 14 °C, Night 5 °C, Rain 64 mm. April: Day 19 °C, Night 9 °C, Rain 55 mm. May: Day 24 °C, Night 15 °C, Rain 64 mm. June: Day 29 °C, Night 20 °C, Rain 50 mm. July: Day 32 °C, Night 22 °C, Rain 39 mm. August: Day 31 °C, Night 22 °C, Rain 40 mm. September: Day 26 °C, Night 17 °C, Rain 57 mm. October: Day 21 °C, Night 13 °C, Rain 62 mm. November: Day 15 °C, Night 8 °C, Rain 60 mm. December: Day 10 °C, Night 3 °C, Rain 78 mm
Show the monthly table
Thessaloniki
MonthDay (°C)Night (°C)Rain (mm)
January9157
February11346
March14564
April19955
May241564
June292050
July322239
August312240
September261757
October211362
November15860
December10378

Heraklion

Long-term averages for Heraklion: the mean daily high, the mean overnight low and the mean monthly rainfall across 30 years of ERA5 reanalysis data (1995–2024).

DayNight
5101520253035°C0100mmJanFebMarAprMayJunJulAugSepOctNovDecJanuary: Day 15 °C, Night 9 °C, Rain 68 mm. February: Day 16 °C, Night 9 °C, Rain 68 mm. March: Day 18 °C, Night 9 °C, Rain 60 mm. April: Day 21 °C, Night 12 °C, Rain 34 mm. May: Day 26 °C, Night 16 °C, Rain 29 mm. June: Day 30 °C, Night 20 °C, Rain 11 mm. July: Day 31 °C, Night 23 °C, Rain 3 mm. August: Day 31 °C, Night 23 °C, Rain 6 mm. September: Day 29 °C, Night 20 °C, Rain 22 mm. October: Day 24 °C, Night 17 °C, Rain 35 mm. November: Day 20 °C, Night 13 °C, Rain 42 mm. December: Day 16 °C, Night 10 °C, Rain 65 mm
Show the monthly table
Heraklion
MonthDay (°C)Night (°C)Rain (mm)
January15968
February16968
March18960
April211234
May261629
June302011
July31233
August31236
September292022
October241735
November201342
December161065

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What this guide was checked against. Rules and prices change — follow the official link before you rely on a detail.