🇸🇪Sweden
12 cities
Climate overview
Sweden's climate stretches across three broad zones: a temperate south shaped by the Baltic and the North Atlantic Current, a humid continental centre, and a subarctic north that crosses the Arctic Circle. The Gulf Stream keeps the country noticeably milder than other regions at the same latitude, yet the north–south gradient is sharp in winter and surprisingly narrow in summer.
Average January temperatures range from near 0°C in the far south to below −12°C in the northern interior, where cold snaps can reach −30 to −40°C. Summers are short but mild, with July averages around 17°C in Malmö and 15°C in Haparanda, a difference of only about two degrees across the country. Annual precipitation is typically 500–800 mm, rising above 1,000 mm on the southwest coast and to roughly 2,000 mm in the northern mountains; late summer and autumn are the wettest seasons.
Our archive covers 12 Swedish cities with daily ERA5 reanalysis data going back to 1940. July averages peak in Västerås at around 22°C, while Umeå records the coldest January nights near −8.1°C. Comparing the last decade against the 1940–1970 baseline, mean temperatures across these cities have risen by about 1.8°C.
How the climate has shifted in Sweden
Average across 12 cities with full ERA5 coverage — 1940–1970 baseline vs the last decade (2016–2025).
- Annual mean temperature
- 6.2°C→8.0°C
- Days above 30°C per year
- 0 days→1 days+1
- Frost days per year
- 125 days→101 days−24
- Tropical nights (≥20°C) per year
- 0 nights→0 nights+0
Warmest year in the record so far: 2020.
What's unusual right now
From a snapshot of the world's largest cities updated each hour. Today's mean temperature compared with each city's long-term average for the same calendar date (ERA5 climatology, 1940 onward). Last 30 days uses each city's rolling daily-mean vs its monthly average. Not a global ranking.
Warmer than usual
Cooler than usual