May weather forecastSaint Roman, Monaco
May
Weather in May
As spring evolves into summer, May in Saint Roman witnesses an increase in average high temperature to 16.9°C (62.4°F), complemented by a significant rise in humidity levels to 75%. The city starts to warm up, inviting more outdoor activities under the longer daylight hours. Despite the increased warmth, rain continues its frequent dance, so residents and visitors should prepare for occasional dampness. May's weather is largely characterized by increased warmth, more daylight, and continued rainfall.Temperature
The commencement of May introduces an average high-temperature of a comfortable 16.9°C (62.4°F), closely mirroring the preceding month. Recording a slight drop from the daily maximum, Saint Roman notes an average low temperature of 12.5°C (54.5°F) in the month of May.Humidity
The months with the highest humidity are May and June, with an average relative humidity of 75%.Rainfall
In May, the rain falls for 18.9 days. Throughout May, 71mm (2.8") of precipitation is accumulated. In Saint Roman, during the entire year, the rain falls for 163.9 days and collects up to 765mm (30.12") of precipitation.Snowfall
In Saint Roman, snow does not fall in April through December.Daylight
In May, the average length of the day is 14h and 44min.On the first day of the month, sunrise is at 06:21 and sunset at 20:33. On the last day of May, in Saint Roman, sunrise is at 05:51 and sunset at 21:04 CEST.
Sunshine
In May, the average sunshine is 11.1h.UV index
In Saint Roman, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In May, a daily UV index of 5 turns into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Saint Roman, Monaco
- Average high temperature in May: 16.9°C
The warmest month (with the highest average high temperature) is August (23.9°C).
The months with the lowest average high temperature are January and February (8.8°C).
- Average low temperature in May: 12.5°C
The month with the highest average low temperature is August (19.2°C).
The coldest month (with the lowest average low temperature) is February (4.7°C).
Average pressure in May
Saint Roman, Monaco
- Average pressure in May: 1014.1mbar
The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is April (1013.9mbar).
Average wind speed in May
Saint Roman, Monaco
- Average wind speed in May: 10.5km/h
The windiest month (with the highest average wind speed) is March (13.1km/h).
The calmest month (with the lowest average wind speed) is August (8.3km/h).
Average humidity in May
Saint Roman, Monaco
- Average humidity in May: 75%
The months with the highest relative humidity are May and June (75%).
The months with the lowest relative humidity are January and December (69%).
Average rainfall in May
Saint Roman, Monaco
- Average rainfall in May: 71mm
The wettest month (with the highest rainfall) is November (127mm).
The driest month (with the least rainfall) is January (34mm).
Average rainfall days in May
Saint Roman, Monaco
- Average rainfall days in May: 18.9 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is December (9.1 days).
Average snowfall in May
Saint Roman, Monaco
- Average snowfall in May: 0mm
The month with the highest snowfall is February (10mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in May
Saint Roman, Monaco
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are April, May, June, July, August, October and November (0 days).
Average daylight in May /
Average sunshine in May
Saint Roman, Monaco
- Average daylight in May: 14h and 42min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 11h and 6min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The months with the least sunshine are January, November and December (Average sunshine: 6h and 24min).
Average sunshine days in May
Saint Roman, Monaco
- Average sunshine days in May: 7.3 days
The month with the most sunshine days is December (19.4 days).
The month with the least sunshine days is May (7.3 days).
Average UV index in May
Saint Roman, Monaco
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in May
Saint Roman, Monaco
- Average cloud cover in May: 24
The month with the most cloud cover is February (Cloud cover 31).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in May
Saint Roman, Monaco
- 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).








