May weather forecastAthens, Greece
May
Weather in May
May in Athens is the prelude to a hot summer. Daylight extends to 14.2 hours per day, adding cheer to the atmosphere. A stark decrease in rainfall to 20mm (0.79") truly marks the start of the dry season. It is a suitable time to indulge in outdoor activities. The sea also starts to warm up, inviting the first swimmers of the season.Temperature
May witnesses a subtle temperature ascent, adjusting from an enjoyable 19.2°C (66.6°F) in April to a moderately hot 23.8°C (74.8°F). Athens's average low-temperature during May nights is observed to be an enjoyable 16.4°C (61.5°F).Humidity
In May, the average relative humidity is 58%.Rainfall
In May, the rain falls for 9.3 days. Throughout May, 20mm (0.79") of precipitation is accumulated. In Athens, during the entire year, the rain falls for 98.9 days and collects up to 348mm (13.7") of precipitation.Snowfall
April through December are months without snowfall.Sea temperature
In Athens, Greece, in May, the average water temperature is 18.5°C (65.3°F).Note: In water with a temperature of 18.5°C (65.3°F), most people do not enjoy swimming. As the temperature descends from 21°C (69.8°F) to 15°C (59°F), breathing becomes increasingly difficult to control.
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 06:28 and sunset at 20:16. On the last day of May, sunrise is at 06:04 and sunset at 20:41 EEST.
Sunshine
In Athens, the average sunshine in May is 11.3h.UV index
In Athens, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 6 during May translates into the following directions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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).
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).
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).
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).
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).
Average daylight in May /
Average sunshine in May
Athens, Greece
- Average daylight in May: 14h and 12min
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 18min
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).
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).
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).
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).
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).
