May weather forecastPatras, Greece
May
Weather in May
May brings the true essence of spring to Patras, with soaring temperatures and blooming flora. The weather takes a decidedly warmer pivot from its predecessors, presenting an inviting outdoor ambience. With May's arrival, the city sees a drastic reduction in rainfall, registering only 29mm (1.14") throughout the month. As the month unfolds under brighter skies and longer daylight, the city gears up for the upcoming summer period. In summary, May stands as a threshold, phasing out the wetter spring season and stepping into the sunlit arch of summer.Temperature
Observing a slight rise in May, the average high-temperature shifts from April's enjoyable 19.7°C (67.5°F) to a moderately hot 24.2°C (75.6°F). Patras, during May nights, observes an average temperature of 13.9°C (57°F).Rainfall
In Patras, in May, during 5.3 rainfall days, 29mm (1.14") of precipitation is typically accumulated. In Patras, during the entire year, the rain falls for 86 days and collects up to 663mm (26.1") of precipitation.Sea temperature
In May, the average sea temperature is 19.2°C (66.6°F).Note: Swimming is not a pleasant activity for most individuals in 19.2°C (66.6°F). Breathing becomes increasingly challenging to control as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
In May, the average length of the day in Patras, Greece, is 14h and 15min.On the first day of the month, sunrise is at 06:35 and sunset at 20:24. On the last day of May, sunrise is at 06:11 and sunset at 20:50 EEST.
Sunshine
In May, the average sunshine is 10h.UV index
In May, the average daily maximum UV index is 8. A UV Index estimate of 8 to 10 represents a very high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 8 during May leads to these instructions:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. 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
Patras, Greece
- Average high temperature in May: 24.2°C
The warmest month (with the highest average high temperature) is August (30.9°C).
The month with the lowest average high temperature is January (14.5°C).
- Average low temperature in May: 13.9°C
The month with the highest average low temperature is August (19.6°C).
The coldest month (with the lowest average low temperature) is January (6.1°C).
Average rainfall in May
Patras, Greece
- Average rainfall in May: 28.9mm
The wettest month (with the highest rainfall) is November (118mm).
The driest month (with the least rainfall) is July (4.6mm).
Average rainfall days in May
Patras, Greece
- Average rainfall days in May: 5.3 days
The month with the highest number of rainy days is December (13.2 days).
The months with the least rainy days are July and August (1 days).
Average sea temperature in May
Patras, Greece
- Average sea temperature in May: 19.2°C
The best month for swimming (with the highest average sea temperature) is August (26.1°C).
The coldest month (with the lowest average sea temperature) is February (15.3°C).
Average daylight in May /
Average sunshine in May
Patras, Greece
- Average daylight in May: 14h and 18min
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: 10h
The month with the most sunshine is July (Average sunshine: 13h).
The months with the least sunshine are January, February, November and December (Average sunshine: 5h).
Average UV index in May
Patras, Greece
- Average UV index in May: 8
The month with the highest UV index is July (UV index 10).
The months with the lowest UV index are January and December (UV index 2).





