Which municipality in canton Basel-City is the sunniest?

Basel is the sunniest municipality in canton Basel-City, at 42.1% relative sunshine (1991–2020).

What does relative sunshine duration mean?

The share of actual sunshine hours against the maximum possible. It makes places with short winter days fairly comparable with very sunny locations.

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Ranking · Data 1991–2020 · Source: BFS

The sunniest municipalities in canton Basel-City (1991–2020)

National ranking →

Basel is the sunniest municipality in canton Basel-City: 42.1% of possible sunshine duration (1991–2020 normals). Next come Riehen (41.9%) and Bettingen (41.2%). Source: MeteoSwiss 1 km climate-normals grid.

Ranking

MeteoSchweiz · 1991–2020

Rank	Municipality	Sunshine	Residents
1	Basel	42.1%	180'097
2	Riehen	41.9%	22'774
3	Bettingen	41.2%	1'286

1991–2020 · MeteoSwiss, retrieved 28.08.2026

How we measure this

MeteoSchweiz

Relative sunshine duration (actual as a share of astronomically possible sunshine) from the MeteoSwiss 1 km gridded climate normals — a spatial analysis of the 1991–2020 normals period — read at the municipality's main settlement. The relative figure is topography-fair because it accounts for shorter winter days.

Frequently asked questions

Which municipality in canton Basel-City is the sunniest?: Basel is the sunniest municipality in canton Basel-City, at 42.1% relative sunshine (1991–2020).
What does relative sunshine duration mean?: The share of actual sunshine hours against the maximum possible. It makes places with short winter days fairly comparable with very sunny locations.