Our verdict
The best time to visit Basel is June
In the summer months, temperatures tend to get to a maximum of around 28℃ (82℉). The coldest it usually gets in winter-time in Basel is around -6℃ (21℉).
The days are longest in Basel in July, so if you want to see the sights during the day when the sun is up for the longest time, it’s best to visit around that time of year. June sees the most amount of rain in a month if you’re ok with chancing getting drenched, so if you’re looking to stay dry, visit in September instead.
Keep reading to find out more detailed information about the seasons and climate in Basel, as well as our favourite tools to help you find the best options for transport, accommodation, and much more.
Quick links: Fast facts / Seasons / Average temperatures / Monthly climate / FAQs / Map
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Basel seasons
Before you continue, it’s important to know when the seasons are in Basel as they might be different to yours depending on where in the world you’re travelling from. Basel is in the Northern Hemisphere, so the seasons fall during these months:
| Season | Months |
|---|---|
| Summer | June to August |
| Autumn/fall | September to November |
| Winter | December to February |
| Spring | March to May |
Average temperatures in Basel
If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Basel for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.
Basel climate by month
If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Basel for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.
Jump to:
Basel in January
- Average temperature: 1℃ (34℉)
- Average high temperature: 4℃ (39℉)
- Average low temperature: -2℃ (29℉)
- Average humidity: 86%
- Average sunny days: 13 days
- Average rainfall: 46mm (2") over 13 days
- Average snow days: 7 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Basel in January, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Basel in February
- Average temperature: 2℃ (35℉)
- Average high temperature: 5℃ (41℉)
- Average low temperature: -2℃ (29℉)
- Average humidity: 83%
- Average sunny days: 12 days
- Average rainfall: 46mm (2") over 12 days
- Average snow days: 7 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Basel in February, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Basel in March
- Average temperature: 6℃ (42℉)
- Average high temperature: 10℃ (50℉)
- Average low temperature: 2℃ (35℉)
- Average humidity: 80%
- Average sunny days: 13 days
- Average rainfall: 44mm (2") over 14 days
- Average snow days: 3 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Basel in March, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Basel in April
- Average temperature: 10℃ (50℉)
- Average high temperature: 15℃ (59℉)
- Average low temperature: 5℃ (40℉)
- Average humidity: 77%
- Average sunny days: 12 days
- Average rainfall: 41mm (2") over 15 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Basel in April, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Basel in May
- Average temperature: 13℃ (55℉)
- Average high temperature: 18℃ (64℉)
- Average low temperature: 7℃ (45℉)
- Average humidity: 80%
- Average sunny days: 8 days
- Average rainfall: 68mm (3") over 20 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Basel in May, make sure you pack a warm jacket or coat.
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Basel in June
- Average temperature: 17℃ (62℉)
- Average high temperature: 22℃ (71℉)
- Average low temperature: 11℃ (51℉)
- Average humidity: 81%
- Average sunny days: 9 days
- Average rainfall: 74mm (3") over 19 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Basel in June, make sure you pack a coat or jumper for the evenings and some light clothes for the daytime.
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Basel in July
- Average temperature: 19℃ (66℉)
- Average high temperature: 24℃ (75℉)
- Average low temperature: 13℃ (55℉)
- Average humidity: 78%
- Average sunny days: 10 days
- Average rainfall: 72mm (3") over 17 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Basel in July, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Basel in August
- Average temperature: 18℃ (65℉)
- Average high temperature: 24℃ (75℉)
- Average low temperature: 13℃ (55℉)
- Average humidity: 78%
- Average sunny days: 12 days
- Average rainfall: 63mm (2") over 15 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Basel in August, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Basel in September
- Average temperature: 14℃ (57℉)
- Average high temperature: 20℃ (67℉)
- Average low temperature: 9℃ (49℉)
- Average humidity: 80%
- Average sunny days: 15 days
- Average rainfall: 33mm (1") over 12 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Basel in September, make sure you pack a warm jacket or coat.
Basel in October
- Average temperature: 10℃ (50℉)
- Average high temperature: 15℃ (58℉)
- Average low temperature: 6℃ (43℉)
- Average humidity: 82%
- Average sunny days: 17 days
- Average rainfall: 46mm (2") over 11 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Basel in October, make sure you pack a warm jacket or coat.
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Basel in November
- Average temperature: 6℃ (42℉)
- Average high temperature: 9℃ (48℉)
- Average low temperature: 3℃ (37℉)
- Average humidity: 83%
- Average sunny days: 13 days
- Average rainfall: 54mm (2") over 13 days
- Average snow days: 2 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Basel in November, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Basel in December
- Average temperature: 2℃ (36℉)
- Average high temperature: 5℃ (41℉)
- Average low temperature: -0℃ (32℉)
- Average humidity: 85%
- Average sunny days: 12 days
- Average rainfall: 68mm (3") over 15 days
- Average snow days: 6 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Basel in December, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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