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