Bayonne

Stay up to date with the latest weather conditions in Bayonne. Below, you will find current data, forecasts, and helpful weather charts.

The climate in Bayonne, located in southwestern France, can be described as temperate oceanic. It is characterized by mild temperatures throughout the year, without sharp fluctuations or extreme heat or cold. The average annual temperature ranges from about 8-10°C in winter to 21°C in summer, creating generally comfortable conditions for visiting the city.

Bayonne experiences four distinct seasons. Summer (June-August) is warm here, with average maximum temperatures reaching 22-25°C, and is the sunniest period. Winters (December-February) are mild, with average temperatures staying around 8-10°C, although this period also sees a high number of rainy days, second only to the spring period. Spring and autumn are pleasant transitional seasons with moderate temperatures and changeable weather.

One characteristic feature of the weather in Bayonne is the frequent precipitation throughout the year. Data shows that the number of rainy days remains significant even in the summer months: for example, there are about 10 in July and about 12 in August. The highest number of rainy days occurs in late autumn and winter, reaching 15-17 days per month in November, December, and January. Therefore, when planning your trip, it's worth being prepared for possible rain regardless of the season.

The climate in Bayonne is characterized by moderate temperatures throughout the year, with noticeable seasonal changes. The annual range of average temperatures fluctuates from about 8.4°C in January to 21.4°C in August. January is traditionally the coldest month, when the average minimum temperature is 5.7°C and the maximum daytime temperature reaches about 11.0°C. August is typically the hottest month, with an average temperature of 21.4°C, where daytime highs can rise to 24.8°C and nighttime lows stay around 18.0°C.

Summer months in Bayonne, especially July and August, offer pleasantly warm weather. Average daytime temperatures during this period consistently exceed 20°C, peaking in August (average maximum 24.8°C). June is also warm, with an average maximum temperature of 22.2°C. Nights in summer remain comfortable, with temperatures rarely falling below 15-18°C, creating ideal conditions for evening walks and outdoor relaxation.

The winter period in Bayonne is notably mild. Average temperatures in December, January, and February range from 8.4°C to 10.2°C. Even in the coolest month, January, the average minimum temperature is 5.7°C, and during the day, the air usually warms up to 11.0°C. This means that severe frosts are rare here. Temperature fluctuations between day and night are noticeable but not extreme: the difference between the average maximum and average minimum temperature throughout the year is about 5-7°C, ensuring a gradual cooling toward the evening.

In the city of Bayonne, precipitation occurs throughout the year; however, its intensity and frequency vary by season. There is no clearly defined dry season, but periods with more and less rainfall can be distinguished.

The wettest months in Bayonne, according to statistical data, are November and December, when an average of 6 mm of precipitation falls. November also stands out with the highest number of rainy days—about 17. January follows with 5 mm of precipitation and about 15 rainy days. Spring months, such as March and May, are also characterized by frequent precipitation (about 16 rainy days), although the total amount of precipitation is slightly lower (4 mm).

The "driest" months are considered to be July and August, when the average monthly precipitation drops to 2 mm. July also sees the fewest days with precipitation—around 10. Despite this, even in the summer months, the possibility of rain remains, indicating the absence of prolonged dry spells.

Overall, Bayonne is characterized by frequent but, based on the provided total volume data, predominantly light precipitation in the form of rain. Given the mild winter temperatures, snowfall is not a typical occurrence for the city. The distribution of precipitation suggests that travelers should be prepared for possible rain almost any time of year, although the summer months offer more sunny days.

When planning a trip to Bayonne, it's important to consider the changeable weather characteristic of this region of France. Regardless of the season, the key principle when packing should be layering. Daytime and evening temperatures can vary significantly, and sudden weather changes are possible. Be sure to bring comfortable walking shoes, as the city is perfect for exploring on foot. Given the high number of rainy days throughout the year (from 10 to 17 days per month), a compact umbrella or a light waterproof jacket will be your faithful companions. Even in the summer months, when precipitation is at its minimum, short rains are still possible.

In the summer months (June-August), when average temperatures hover around 19-21°C, you'll need light clothing: t-shirts, shorts, and dresses. However, don't forget to pack a light sweater or cardigan for cool evenings or windy days. Sunscreen and a hat will also be very useful. In spring (March-May) and autumn (September-November), the weather is cooler, with average temperatures ranging from 11°C to 19°C. During this period, it's worth bringing a mid-season jacket, sweaters, and trousers. Especially in November, when the amount of precipitation and wet days is at its peak, waterproof clothing and shoes will be particularly important. In winter (December-February), the average temperature stays around 8-10°C, so pack a warm jacket, sweaters, a hat, scarf, and gloves, and don't forget your rain protection.