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 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
May's onset brings a subtle temperature rise, moving from a refreshing 17.6°C (63.7°F) in April to a pleasant 20.7°C (69.3°F). Ostia Antica records an average low-temperature of 14.8°C (58.6°F) throughout the month of May.Humidity
In Ostia Antica, the average relative humidity in May is 71%.Rainfall
In Ostia Antica, during May, the rain falls for 10.8 days and regularly aggregates up to 28mm (1.1") of precipitation. Throughout the year, there are 127.8 rainfall days, and 467mm (18.39") of precipitation is accumulated.Daylight
In Ostia Antica, the average length of the day in May is 14h and 33min.On the first day of May, sunrise is at 06:06 and sunset at 20:09. On the last day of the month, sunrise is at 05:38 and sunset at 20:38 CEST.
Sunshine
In May, the average sunshine is 11.1h.UV index
The average daily maximum UV index in May in Ostia Antica is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: In May, the maximum UV index of 5 suggests these recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Frequently asked questions
What is the average May temperature in Ostia Antica?
What is the average humidity in May in Ostia Antica?
How many days does it rain in May in Ostia Antica?
How many hours of daylight does Ostia Antica have in May?
When are sunrise and sunset in May in Ostia Antica?
How many hours of sunshine does Ostia Antica have in May?
How high is the UV index in May in Ostia Antica?
Average temperature in May
Ostia Antica, Italy
- Average high temperature in May: 20.7°C
The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (12.3°C).
- Average low temperature in May: 14.8°C
The month with the highest average low temperature is August (22.8°C).
The coldest month (with the lowest average low temperature) is February (7.8°C).
Average pressure in May
Ostia Antica, Italy
- Average pressure in May: 1014.4mbar
The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is April (1014.1mbar).
Average wind speed in May
Ostia Antica, Italy
- Average wind speed in May: 12.6km/h
The windiest month (with the highest average wind speed) is February (16.8km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).
Average humidity in May
Ostia Antica, Italy
- Average humidity in May: 71%
The months with the highest relative humidity are January, March, April and November (73%).
The month with the lowest relative humidity is August (63%).
Average rainfall in May
Ostia Antica, Italy
- Average rainfall in May: 28mm
The wettest month (with the highest rainfall) is November (107mm).
The driest month (with the least rainfall) is August (10mm).
Average rainfall days in May
Ostia Antica, Italy
- Average rainfall days in May: 10.8 days
The month with the highest number of rainy days is November (15.6 days).
The month with the least rainy days is August (4.3 days).
Average daylight in May /
Average sunshine in May
Ostia Antica, Italy
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 11h and 1min
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 54min).
Average sunshine days in May
Ostia Antica, Italy
- Average sunshine days in May: 17.8 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is November (11.7 days).
Average UV index in May
Ostia Antica, Italy
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in May
Ostia Antica, Italy
- Average cloud cover in May: 22
The month with the most cloud cover is January (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in May
Ostia Antica, Italy
- 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).
Ostia Antica, Italy
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