Days 1-16 are a real forecast from global weather models. Days 17-30 are season-typical values based on DWD climate normals 1991-2020 — good for planning, NOT an exact forecast that far ahead.
30 days — Duisburg
14 real + 16 synthesised
Sat · Today Clear
+29°+14°1%
Sun · Tomorrow Clear
+34°+19°1%
Monday 10/8 Clear
+30°+18°2%
Tuesday 11/8 Clear
+25°+12°2%
Wednesday 12/8 Clear
+29°+13°1%
Thursday 13/8 Clear
+34°+18°1%
Friday 14/8 Clear
+37°+22°1%
Saturday 15/8 Clear
+27°+15°2%
Sunday 16/8 Clear
+28°+14°1%
Monday 17/8 Clear
+32°+17°1%
Tuesday 18/8 Clear
+29°+17°2%
Wednesday 19/8 Clear
+30°+14°3%
Thursday 20/8 Partly cloudy
+19°+11°10%
Friday 21/8 Clear
+25°+10°3%
Saturday 22/8 Heavy rain
+24°+15°1,3 mm
Sunday 23/8 Heavy rain
+25°+15°1,3 mm
Monday 24/8 Partly cloudy (climate normal)
+24°+14°20%
Tuesday 25/8 Rain (climate normal)
+26°+15°5,3 mm
Wednesday 26/8 Partly cloudy (climate normal)
+22°+13°20%
Thursday 27/8 Partly cloudy (climate normal)
+19°+11°20%
Friday 28/8 Rain (climate normal)
+22°+12°9,5 mm
Saturday 29/8 Partly cloudy (climate normal)
+24°+14°20%
Sunday 30/8 Partly cloudy (climate normal)
+26°+15°20%
Monday 31/8 Rain (climate normal)
+25°+14°11,2 mm
Tuesday 1/9 Partly cloudy (climate normal)
+21°+11°20%
Wednesday 2/9 Partly cloudy (climate normal)
+19°+10°20%
Thursday 3/9 Rain (climate normal)
+18°+9°3,6 mm
Friday 4/9 Partly cloudy (climate normal)
+16°+8°20%
Saturday 5/9 Partly cloudy (climate normal)
+20°+11°20%
Sunday 6/9 Rain (climate normal)
+20°+11°8,9 mm
Long-range forecast · Duisburg
Duisburg — 30-day analysis
Across the 30-day trend for Duisburg, highs and lows span 8° to 37°, cooling down later in the month. The first 16 days are a real forecast, with rain on about 2 of them; the rest is based on the 1991–2020 climate normals.
How does the long-range forecast work?
Days 1-16 are a real forecast from global models (ICON, ECMWF, GFS): days 1-3 are almost always right, uncertainty grows afterwards, and from day 11 these are tendencies rather than exact values.
From day 17 a serious day-by-day forecast is physically impossible. We therefore show the 1991-2020 climate normals (monthly mean Tmax/Tmin) directly for Duisburg, with mild weekly variation — the typical weather for the season, not a daily prediction.
Rule of thumb: good for “how warm is it usually in late July?”, not for “will it rain on the 27th?”.