May weather forecastBiarritz, France
May
Weather in May
We cannot talk about May in Biarritz without mention of its pleasant balance between rainfall, humidity, and warmer temperatures. As the month progresses, a slight rise in rainfall from 56mm (2.2") to 78mm (3.07") accompanies the steady climb of temperatures. Sea temperature swells to a more comfortable 16.4°C (61.5°F) from April. May is the month where spring shows its many faces - solidifying its warm weather stance while maintaining its lush green strains through persistent showers.Temperature
The shift into May in Biarritz reveals an average high-temperature of a still refreshing 17.9°C (64.2°F), closely mirroring April's climate. Biarritz's temperature lowers to a mean of 11.8°C (53.2°F) during the nights in May.Humidity
The average relative humidity in May in Biarritz, France, is 79%.Rainfall
In Biarritz, France, in May, it is raining for 17.4 days, with typically 78mm (3.07") of accumulated precipitation. In Biarritz, during the entire year, the rain falls for 189.1 days and collects up to 795mm (31.3") of precipitation.Snowfall
In Biarritz, snow does not fall in April through November.Sea temperature
In Biarritz, in May, the average water temperature is 16.4°C (61.5°F).Note: When the surface water temperature is 16.4°C (61.5°F), most do not enjoy swimming. Breathing control becomes more complex as temperatures drop below 21°C (69.8°F).
Daylight
In May, the average length of the day in Biarritz is 14h and 43min.On the first day of the month, sunrise is at 06:58 and sunset at 21:08. On the last day of May, in Biarritz, sunrise is at 06:28 and sunset at 21:39 CEST.
Sunshine
In Biarritz, the average sunshine in May is 8.5h.UV index
The average daily maximum UV index in May is 4. 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, the UV index of 4 transforms into the following advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Biarritz, France
- Average high temperature in May: 17.9°C
The warmest month (with the highest average high temperature) is August (24.4°C).
The month with the lowest average high temperature is January (10.8°C).
- Average low temperature in May: 11.8°C
The month with the highest average low temperature is August (17.1°C).
The coldest month (with the lowest average low temperature) is February (6.2°C).
Average pressure in May
Biarritz, France
- Average pressure in May: 1017.3mbar
The month with the highest atmospheric pressure is December (1021.7mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in May
Biarritz, France
- Average wind speed in May: 12.2km/h
The windiest months (with the highest average wind speed) are January and November (15.1km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).
Average humidity in May
Biarritz, France
- Average humidity in May: 79%
The month with the highest relative humidity is June (80%).
The month with the lowest relative humidity is October (73%).
Average rainfall in May
Biarritz, France
- Average rainfall in May: 78mm
The wettest month (with the highest rainfall) is November (119mm).
The driest month (with the least rainfall) is September (40mm).
Average rainfall days in May
Biarritz, France
- Average rainfall days in May: 17.4 days
The month with the highest number of rainy days is April (17.8 days).
The month with the least rainy days is October (13 days).
Average snowfall in May
Biarritz, France
- Average snowfall in May: 0mm
The month with the highest snowfall is February (5mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in May
Biarritz, France
- 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 April, May, June, July, August, September, October and November (0 days).
Average sea temperature in May
Biarritz, France
- Average sea temperature in May: 16.4°C
The best month for swimming (with the highest average sea temperature) is August (21.4°C).
The coldest month (with the lowest average sea temperature) is February (12.4°C).
Average daylight in May /
Average sunshine in May
Biarritz, France
- 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: 8h and 30min
The month with the most sunshine is July (Average sunshine: 9h and 18min).
The month with the least sunshine is November (Average sunshine: 4h and 54min).
Average sunshine days in May
Biarritz, France
- Average sunshine days in May: 9.8 days
The month with the most sunshine days is October (16.8 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in May
Biarritz, France
- Average UV index in May: 4
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in May
Biarritz, France
- Average cloud cover in May: 45
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in May
Biarritz, France
- Average visibility in May: 9km
The months with the highest visibility are February, March, June, August, September, October, November and December (10km).
The months with the lowest visibility are January, April, May and July (9km).





