Days 1-14 are a real forecast from global weather models. Days 15-30 are season-typical values based on SMHI climate normals 1991-2020 — good for planning, NOT an exact forecast that far ahead.
30 days — Varberg
14 real + 16 synthesised
Thu · Today Showers
+19°+16°2,9 mm
Fri · Tomorrow Partly cloudy
+17°+15°0,2 mm
Saturday 8/8 Showers
+19°+15°0,4 mm
Sunday 9/8 Clear
+21°+17°6%
Monday 10/8 Partly cloudy
+19°+16°1,3 mm
Tuesday 11/8 Clear
+18°+15°7%
Wednesday 12/8 Clear
+18°+15°6%
Thursday 13/8 Clear
+22°+16°5%
Friday 14/8 Partly cloudy
+19°+16°9%
Saturday 15/8 Clear
+18°+16°6%
Sunday 16/8 Clear
+19°+15°8%
Monday 17/8 Clear
+18°+16°0,6 mm
Tuesday 18/8 Clear
+17°+14°5%
Wednesday 19/8 Clear
+18°+15°13%
Thursday 20/8 Rain (climate normal)
+24°+14°5,7 mm
Friday 21/8 Partly cloudy (climate normal)
+26°+15°20%
Saturday 22/8 Partly cloudy (climate normal)
+26°+15°20%
Sunday 23/8 Rain (climate normal)
+25°+15°7,0 mm
Monday 24/8 Partly cloudy (climate normal)
+23°+14°20%
Tuesday 25/8 Partly cloudy (climate normal)
+22°+13°20%
Wednesday 26/8 Rain (climate normal)
+24°+14°7,5 mm
Thursday 27/8 Partly cloudy (climate normal)
+25°+14°20%
Friday 28/8 Partly cloudy (climate normal)
+26°+16°20%
Saturday 29/8 Rain (climate normal)
+28°+16°5,1 mm
Sunday 30/8 Partly cloudy (climate normal)
+25°+15°20%
Monday 31/8 Partly cloudy (climate normal)
+22°+13°20%
Tuesday 1/9 Rain (climate normal)
+17°+9°2,9 mm
Wednesday 2/9 Partly cloudy (climate normal)
+17°+9°20%
Thursday 3/9 Partly cloudy (climate normal)
+19°+10°20%
Friday 4/9 Rain (climate normal)
+23°+12°5,7 mm
How does the long-range forecast work?
Days 1-14: Fetched live from global weather models (ECMWF, GFS) with statistical correction. Reliability ~85% for days 1-3, ~60% for days 7-10, ~45% for days 11-14.
Days 15-30: A real forecast does not exist that far ahead (a chaotic system). Instead we show season-typical values: the month’s average Tmax/Tmin from SMHI climate normals 1991-2020 (Stockholm baseline with latitude correction for Varberg), with mild weekly variation.
Use: "Roughly how warm is it usually in Stockholm in the last week of July?" — a good question for days 15-30. "Will it rain on 27 May?" — no serious forecast can say.