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 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 comes with a subtle rise, with the average high-temperature adjusting from a comfortable 18.3°C (64.9°F) in April to an agreeable 21.5°C (70.7°F). In the month of May, Formello witnesses a consistent average low-temperature of 12.2°C (54°F).Humidity
The average relative humidity in May is 72%.Rainfall
In Formello, during May, the rain falls for 10.5 days and regularly aggregates up to 34mm (1.34") of precipitation. In Formello, during the entire year, the rain falls for 116.5 days and collects up to 416mm (16.38") of precipitation.Snowfall
March through December are months without snowfall.Daylight
In May, the average length of the day is 14h and 35min.On the first day of the month, sunrise is at 06:05 and sunset at 20:09. On the last day of May, sunrise is at 05:37 and sunset at 20:39 CEST.
Sunshine
The average sunshine in May in Formello is 10.9h.UV index
In Formello, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: In May, a daily UV index of 5 turns into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Formello?
What is the average humidity in May in Formello?
How many days does it rain in May in Formello?
When it does not snow in Formello?
What is the average length of the day in May in Formello?
What time are sunrise and sunset in May in Formello?
How long on average sun shines in May in Formello?
What is the UV index intensity in May in Formello?
Average temperature in May
Formello, Italy
- Average high temperature in May: 21.5°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 (11.3°C).
- Average low temperature in May: 12.2°C
The month with the highest average low temperature is August (20.7°C).
The coldest months (with the lowest average low temperature) are January and February (5.3°C).
Average pressure in May
Formello, Italy
- Average pressure in May: 1014.3mbar
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
Formello, Italy
- Average wind speed in May: 10.6km/h
The windiest month (with the highest average wind speed) is February (14.3km/h).
The calmest month (with the lowest average wind speed) is July (9.4km/h).
Average humidity in May
Formello, Italy
- Average humidity in May: 72%
The months with the highest relative humidity are January and November (77%).
The month with the lowest relative humidity is August (58%).
Average rainfall in May
Formello, Italy
- Average rainfall in May: 34mm
The wettest month (with the highest rainfall) is November (75mm).
The driest month (with the least rainfall) is August (8mm).
Average rainfall days in May
Formello, Italy
- Average rainfall days in May: 10.5 days
The month with the highest number of rainy days is November (13.5 days).
The month with the least rainy days is August (3.3 days).
Average snowfall in May
Formello, Italy
- Average snowfall in May: 0mm
The month with the highest snowfall is February (15mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in May
Formello, Italy
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.7 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
Formello, 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: 10h and 5min
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 48min).
Average sunshine days in May
Formello, Italy
- Average sunshine days in May: 18.6 days
The month with the most sunshine days is August (26.3 days).
The month with the least sunshine days is November (14.4 days).
Average UV index in May
Formello, 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, November and December (UV index 3).
Average cloud cover in May
Formello, Italy
- Average cloud cover in May: 25
The month with the most cloud cover is January (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in May
Formello, 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).
Formello, Italy
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