Sun, sea & sand

Bayonne weather in April

Temperature, sea and sunshine in April: long-term averages from 30 years of weather data, not a forecast.

15

Holiday weather in April

Poor

Best time to visit: July – August

What is the weather like in Bayonne in April?

In April, Bayonne is mild: daytime highs average 16 °C, and nights cool down to about 9 °C. The sea averages 13.8 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain is frequent, with about 14 rainy days and 99 mm in total. All in all, April is not an ideal month for a holiday in Bayonne.

April compared

How the weather changes from March to May. Tap a month to open it.

MarchMarAprilAprMayMay
Score151517
Day14°16°19°
Night7°9°12°
Sea13°14°16°
Sun5 h6 h6 h
Rain days131414

More details for April

Daylight
13 h 22 min07:25 – 20:47
UV index
7 · highclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
19 km/haverage daily peakAll months
Cloud cover
64 %on averageAll months
Hot days
0 days30 °C or moreAll months
Time zone
UTC+2Europe/Paris

How the score comes together

  • Temperatureweight 35 %0 %
  • Seaweight 25 %0 %
  • Sunshineweight 20 %45 %
  • Few rainy daysweight 20 %31 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in April

  • Sunscreen
  • Sunglasses & sun hat
  • A jumper for the evenings
  • Rain jacket or umbrella

Bayonne in April: quick answers

Is Bayonne hot in April?

No. In April, Bayonne is mild: daytime highs average 16 °C and nights drop to about 9 °C.

Can you swim in Bayonne in April?

Only if you don't mind cold water: in April the sea averages just 13.8 °C. Comfortable swimming is possible from July to September.

Does it rain much in Bayonne in April?

Rain is frequent, with about 14 rainy days and 99 mm in total.

Bayonne month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences