Weather in May
Temperature
With the onset of May, Rethimno's average high-temperature experiences a slight rise, moving from April's agreeable 20°C (68°F) to a moderately hot 24°C (75.2°F). Throughout May, Rethimno registers a consistent average low-temperature of 15°C (59°F).Rainfall
In Rethimno, in May, it is raining for 3 days, with typically 14mm (0.55") of accumulated precipitation. Throughout the year, there are 67 rainfall days, and 664mm (26.14") of precipitation is accumulated.Sea temperature
In Rethimno, in May, the average water temperature is 19.3°C (66.7°F).Note: Most people do not take pleasure in swimming in water at 19.3°C (66.7°F). The difficulty of managing breathing increases as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
In Rethimno, Greece, the average length of the day in May is 14h and 2min.On the first day of the month, sunrise is at 06:29 and sunset at 20:08. On the last day of May, sunrise is at 06:08 and sunset at 20:31 EEST.
Sunshine
In Rethimno, the average sunshine in May is 10h.UV index
The average daily maximum UV index in May is 9. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: An average maximum UV index of 9 in May leads to these recommendations:
With the absence of protection, damage to skin and eyes can occur instantly. Ensure precautions are taken. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
What is the temperature in May in Rethimno?
How much does it rain in Rethimno in May?
How cold is the water in May in Rethimno?
What is the average length of the day in May in Rethimno?
What time are sunrise and sunset in May in Rethimno?
How long on average sun shines in May in Rethimno?
How high is the UV index in May in Rethimno?
Average temperature in May
Rethimno, Greece
- Average high temperature in May: 24°C
The warmest month (with the highest average high temperature) is July (30°C).
The month with the lowest average high temperature is January (14°C).
- Average low temperature in May: 15°C
The months with the highest average low temperature are July and August (21°C).
The coldest months (with the lowest average low temperature) are January and February (8°C).
Average rainfall in May
Rethimno, Greece
- Average rainfall in May: 14mm
The wettest month (with the highest rainfall) is January (142mm).
The driest months (with the least rainfall) are July and August (1mm).
Average rainfall days in May
Rethimno, Greece
- Average rainfall days in May: 3 days
The month with the highest number of rainy days is December (13 days).
The months with the least rainy days are July and August (0 days).
Average sea temperature in May
Rethimno, Greece
- Average sea temperature in May: 19.3°C
The best month for swimming (with the highest average sea temperature) is August (25.9°C).
The coldest month (with the lowest average sea temperature) is February (16.1°C).
Average daylight in May /
Average sunshine in May
Rethimno, Greece
- Average daylight in May: 14h and 0min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in May: 10h
The months with the most sunshine are June, July and August (Average sunshine: 12h).
The months with the least sunshine are January and December (Average sunshine: 4h).
Average UV index in May
Rethimno, Greece
- Average UV index in May: 9
The months with the highest UV index are June and July (UV index 10).
The months with the lowest UV index are January and December (UV index 2).
Rethimno, Greece
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