May weather forecastRiom, France
May
Weather in May
May, the last month of the spring in Riom, is an enjoyable month, with an average temperature varying between 6.6°C (43.9°F) and 16.9°C (62.4°F).Temperature
Riom experiences an average high-temperature of an enjoyable 16.9°C (62.4°F) in May, marking an insignificant shift from 14.3°C (57.7°F) in April. In May, Riom reports a consistent average low-temperature of 6.6°C (43.9°F) during the nights.Humidity
In May, the average relative humidity in Riom is 82%.Rainfall
In Riom, in May, during 19.9 rainfall days, 59mm (2.32") of precipitation is typically accumulated. Throughout the year, there are 178.9 rainfall days, and 492mm (19.37") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Riom. May is the last month it regularly snows in Riom, France. During 0.2 snowfall days, in May, Riom aggregates 2mm (0.08") of snow. Throughout the year, in Riom, there are 21.5 snowfall days, and 145mm (5.71") of snow is accumulated.Daylight
In May, the average length of the day is 14h and 58min.On the first day of the month, sunrise is at 06:33 and sunset at 20:55. On the last day of May, sunrise is at 06:00 and sunset at 21:29 CEST.
Sunshine
In Riom, the average sunshine in May is 8.5h.UV index
In May, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In May, the maximum UV index of 4 transforms into these recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Stay sun-safe with clothing that is both closely woven and worn loosely. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Riom, France
- Average high temperature in May: 16.9°C
The warmest month (with the highest average high temperature) is August (24.3°C).
The month with the lowest average high temperature is January (5.1°C).
- Average low temperature in May: 6.6°C
The month with the highest average low temperature is August (12.2°C).
The coldest month (with the lowest average low temperature) is February (-1.2°C).
Average pressure in May
Riom, France
- Average pressure in May: 1016.7mbar
The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is November (1015.5mbar).
Average wind speed in May
Riom, France
- Average wind speed in May: 9.8km/h
The windiest month (with the highest average wind speed) is February (11.9km/h).
The calmest month (with the lowest average wind speed) is August (7.5km/h).
Average humidity in May
Riom, France
- Average humidity in May: 82%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (73%).
Average rainfall in May
Riom, France
- Average rainfall in May: 59mm
The wettest month (with the highest rainfall) is June (67mm).
The driest month (with the least rainfall) is September (25mm).
Average rainfall days in May
Riom, France
- Average rainfall days in May: 19.9 days
The month with the highest number of rainy days is May (19.9 days).
The month with the least rainy days is October (11.2 days).
Average snowfall in May
Riom, France
- Average snowfall in May: 2mm
The month with the highest snowfall is February (43mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Riom, France
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Riom, France
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 8h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in May
Riom, France
- Average sunshine days in May: 8 days
The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is May (8 days).
Average UV index in May
Riom, France
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Riom, France
- Average cloud cover in May: 49
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in May
Riom, France
- Average visibility in May: 8km
The months with the highest visibility are March and August (9km).
The months with the lowest visibility are January, February, April, May, June, July, September, October, November and December (8km).





