Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average sea temperature in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
Keratsini in May experiences a slight uptick in the average high-temperature, adjusting from April's comfortable 19.1°C (66.4°F) to a moderately hot 23.9°C (75°F). Throughout the month of May, Keratsini sees a steady low-temperature average of 16.5°C (61.7°F).Humidity
In Keratsini, the average relative humidity in May is 58%.Rainfall
In Keratsini, in May, it is raining for 7.6 days, with typically 17mm (0.67") of accumulated precipitation. Throughout the year, there are 88.8 rainfall days, and 263mm (10.35") of precipitation is accumulated.Snowfall
April through November are months without snowfall in Keratsini.Sea temperature
In Keratsini, the average seawater temperature in May is 18.5°C (65.3°F).Note: Most people find swimming in 18.5°C (65.3°F) unenjoyable. As the water temperature falls from 21°C (69.8°F) to 15°C (59°F), controlling one's breathing becomes harder.
Daylight
In May, the average length of the day is 14h and 14min.On the first day of May in Keratsini, sunrise is at 06:28 and sunset at 20:16. On the last day of the month, sunrise is at 06:04 and sunset at 20:41 EEST.
Sunshine
In Keratsini, the average sunshine in May is 11.3h.UV index
In May, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum UV index of 6 in May translates into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Frequently asked questions
What is the usual temperature for Keratsini in May?
What is the average humidity in May in Keratsini?
How many days does it rain in May in Keratsini?
When it does not snow in Keratsini?
What is the sea temperature in May in Keratsini?
What is the average length of the day in May in Keratsini?
What time are sunrise and sunset in May in Keratsini?
How many hours of sunshine does Keratsini have in May?
How high is the UV index in May in Keratsini?
Average temperature in May
Keratsini, Greece
- Average high temperature in May: 23.9°C
The warmest month (with the highest average high temperature) is July (31.1°C).
The month with the lowest average high temperature is January (11.9°C).
- Average low temperature in May: 16.5°C
The month with the highest average low temperature is August (24.1°C).
The coldest month (with the lowest average low temperature) is January (7.2°C).
Average pressure in May
Keratsini, 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
Keratsini, Greece
- Average wind speed in May: 11.4km/h
The windiest month (with the highest average wind speed) is August (15.7km/h).
The calmest month (with the lowest average wind speed) is May (11.4km/h).
Average humidity in May
Keratsini, Greece
- Average humidity in May: 58%
The month with the highest relative humidity is January (73%).
The months with the lowest relative humidity are July and August (50%).
Average rainfall in May
Keratsini, Greece
- Average rainfall in May: 17mm
The wettest month (with the highest rainfall) is December (39mm).
The driest month (with the least rainfall) is August (4mm).
Average rainfall days in May
Keratsini, Greece
- Average rainfall days in May: 7.6 days
The month with the highest number of rainy days is March (9.9 days).
The month with the least rainy days is August (2 days).
Average snowfall in May
Keratsini, Greece
- Average snowfall in May: 0mm
The months with the highest snowfall are January, February and December (4mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in May
Keratsini, 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
Keratsini, 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
Keratsini, 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 month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in May
Keratsini, Greece
- Average sunshine days in May: 20.8 days
The month with the most sunshine days is August (27.5 days).
The month with the least sunshine days is February (16.3 days).
Average UV index in May
Keratsini, 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
Keratsini, Greece
- Average cloud cover in May: 19
The month with the most cloud cover is January (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in May
Keratsini, 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).
Keratsini, Greece
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