May weather forecast
Athens, Greece

The ancient city of Athens in Greece with a view of the Parthenon Temple
The ancient city of Athens in Greece with a view of the Parthenon Temple

Weather in May

May, the last month of the spring in Athens, is a warm month, with an average temperature ranging between min 16.4°C (61.5°F) and max 23.8°C (74.8°F).

Temperature

In Athens, the average high-temperature in May slightly increases from a comfortable 19.2°C (66.6°F) in April to a warm 23.8°C (74.8°F). In Athens, the average low-temperature is 16.4°C (61.5°F).

Humidity

The average relative humidity in May is 58%.

Rainfall

In Athens, during 9.3 rainfall days, 20mm (0.79") of precipitation is typically accumulated. In Athens, during the entire year, the rain falls for 98.9 days and collects up to 348mm (13.7") of precipitation.

Snowfall

In Athens, snow does not fall in April through December.

Sea temperature

In Athens, the average seawater temperature in May is 18.5°C (65.3°F).
Note: Swimming in 18.5°C (65.3°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

Daylight

In Athens, the average length of the day in May is 14h and 14min.
On the first day of the month, sunrise is at 06:29 and sunset at 20:15. On the last day of May, sunrise is at 06:04 and sunset at 20:40 EEST.

Sunshine

In Athens, the average sunshine in May is 11.3h.

UV index

In May, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 6 in May transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in May in Athens?

In Athens, in May, the average high-temperature is 23.8°C (74.8°F), and the average low-temperature is 16.4°C (61.5°F).

What is the average humidity in May in Athens?

In Athens, the average relative humidity in May is 58%.

How many days does it rain in May in Athens?

In Athens, Greece, in May, it is raining for 9.3 days, with typically 20mm (0.79") of accumulated precipitation.

When it does not snow in Athens?

In Athens, Greece, snow does not fall in April through December.

What is the sea water temperature in May in Athens?

In Athens, Greece, in May, the average water temperature is 18.5°C (65.3°F). For swimming, a surface water temperature of 18.5°C (65.3°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

How many hours of daylight does Athens have in May?

The average day length in May in Athens is 14h and 14min.

When is the sunrise / sunset in May in Athens?

In May, on the first day of the month, sunrise is at 06:29 and sunset at 20:15. On the last day of the month, sunrise is at 06:04 and sunset at 20:40 EEST.

How long on average sun shines in May in Athens?

In May, the average sunshine duration is 11.3h.

What is the UV index intensity in May in Athens?

The average daily maximum UV index in May in Athens, Greece, is 6. A UV Index reading of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in May
Athens, Greece

Average temperature in May - Athens, Greece
  • Average high temperature in May: 23.8°C

The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (12.1°C).

  • Average low temperature in May: 16.4°C

The month with the highest average low temperature is August (23.8°C).
The coldest month (with the lowest average low temperature) is January (7.3°C).

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Average pressure in May
Athens, Greece

Average pressure in May - Athens, Greece
  • Average pressure in May: 1013mbar

The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is July (1011.1mbar).

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Average wind speed in May
Athens, Greece

Average wind speed in May - Athens, Greece
  • Average wind speed in May: 11.6km/h

The windiest month (with the highest average wind speed) is August (16.3km/h).
The calmest month (with the lowest average wind speed) is May (11.6km/h).

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Average humidity in May
Athens, Greece

Average humidity in May - Athens, Greece
  • Average humidity in May: 58%

The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is August (50%).

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Average rainfall in May
Athens, Greece

Average rainfall in May - Athens, Greece
  • Average rainfall in May: 20mm

The wettest month (with the highest rainfall) is December (53mm).
The driest month (with the least rainfall) is August (4mm).

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Average rainfall days in May
Athens, Greece

Average rainfall days in May - Athens, Greece
  • Average rainfall days in May: 9.3 days

The month with the highest number of rainy days is January (11.3 days).
The month with the least rainy days is August (1.8 days).

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Average snowfall in May
Athens, Greece

Average snowfall in May - Athens, Greece
  • Average snowfall in May: 0mm

The month with the highest snowfall is January (9mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).

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Average snowfall days in May
Athens, Greece

Average snowfall days in May - Athens, Greece
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average sea temperature in May
Athens, Greece

Average sea temperature in May - Athens, Greece
  • Average sea temperature in May: 18.5°C

The best month for swimming (with the highest average sea temperature) is August (26.3°C).
The coldest month (with the lowest average sea temperature) is February (15°C).

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Average daylight in May /
Average sunshine in May
Athens, Greece

Average daylight in May / Average sunshine in May - Athens, Greece
  • Average daylight in May: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in May: 11h and 2min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).

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Average sunshine days in May
Athens, Greece

Average sunshine days in May - Athens, Greece
  • Average sunshine days in May: 20.4 days

The month with the most sunshine days is August (28.5 days).
The month with the least sunshine days is February (14.1 days).

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Average UV index in May
Athens, Greece

Average UV index in May - Athens, Greece
  • Average UV index in May: 6

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in May
Athens, Greece

Average cloud cover in May - Athens, Greece
  • Average cloud cover in May: 19

The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in May
Athens, Greece

Average visibility in May - Athens, Greece
  • Average visibility in May: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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