May weather forecastGrottaferrata, Italy
May
Weather in May
May, the last month of the spring in Grottaferrata, is an agreeable month, with temperature in the range of an average low of 12.8°C (55°F) and an average high of 21.4°C (70.5°F).Temperature
With the onset of May, Grottaferrata's average high-temperature experiences a slight rise, moving from April's refreshing 18.3°C (64.9°F) to a pleasant 21.4°C (70.5°F). During the nights in May, Grottaferrata observes an average low-temperature of 12.8°C (55°F).Humidity
The average relative humidity in May in Grottaferrata is 70%.Rainfall
In May, the rain falls for 14.4 days. Throughout May, 49mm (1.93") of precipitation is accumulated. Throughout the year, in Grottaferrata, there are 143.3 rainfall days, and 595mm (23.43") of precipitation is accumulated.Snowfall
In Grottaferrata, snow does not fall in January, March through November.Daylight
In May, the average length of the day in Grottaferrata is 14h and 34min.On the first day of May, sunrise is at 06:04 and sunset at 20:07. On the last day of the month, sunrise is at 05:37 and sunset at 20:37 CEST.
Sunshine
In May, the average sunshine is 11h.UV index
In Grottaferrata, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The UV index of 5 in May translates into these instructions:
Undertake precautions - It is suggested to shield oneself from sunburn. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Grottaferrata, Italy
- Average high temperature in May: 21.4°C
The warmest month (with the highest average high temperature) is August (30.5°C).
The month with the lowest average high temperature is January (11.4°C).
- Average low temperature in May: 12.8°C
The month with the highest average low temperature is August (20.9°C).
The coldest month (with the lowest average low temperature) is January (5.7°C).
Average pressure in May
Grottaferrata, 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 (1014mbar).
Average wind speed in May
Grottaferrata, Italy
- Average wind speed in May: 9.6km/h
The windiest month (with the highest average wind speed) is February (12.3km/h).
The calmest month (with the lowest average wind speed) is August (8.5km/h).
Average humidity in May
Grottaferrata, Italy
- Average humidity in May: 70%
The months with the highest relative humidity are January and November (75%).
The month with the lowest relative humidity is August (57%).
Average rainfall in May
Grottaferrata, Italy
- Average rainfall in May: 49mm
The wettest month (with the highest rainfall) is November (111mm).
The driest month (with the least rainfall) is August (16mm).
Average rainfall days in May
Grottaferrata, Italy
- Average rainfall days in May: 14.4 days
The month with the highest number of rainy days is November (15.2 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in May
Grottaferrata, Italy
- Average snowfall in May: 0mm
The month with the highest snowfall is February (16mm).
The months with the least snowfall are January, March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in May
Grottaferrata, Italy
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Grottaferrata, Italy
- Average daylight in May: 14h and 36min
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 0min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days in May
Grottaferrata, Italy
- Average sunshine days in May: 13.5 days
The month with the most sunshine days is August (21.4 days).
The month with the least sunshine days is November (12.5 days).
Average UV index in May
Grottaferrata, 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, February and December (UV index 3).
Average cloud cover in May
Grottaferrata, Italy
- Average cloud cover in May: 25
The month with the most cloud cover is January (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in May
Grottaferrata, 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).
