11-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Partly cloudy
6°
Feels like 5°
Wind↑ ESE 5 km/h
Humidity 94 %
Evening
Partly cloudy
7°
Feels like 6°
Wind↑ E 7 km/h
Gusts17 km/h
Humidity 80 %
12-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Overcast
7°
Feels like 5°
Wind↑ ENE 12 km/h
Gusts34 km/h
Humidity 70 %
Evening
Partly cloudy
7°
Feels like 5°
Wind↑ NNE 13 km/h
Gusts29 km/h
Humidity 76 %
13-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Partly cloudy
6°
Feels like 5°
Wind↑ NW 8 km/h
Humidity 73 %
Evening
Overcast
8°
Feels like 6°
Wind↑ WSW 9 km/h
Gusts29 km/h
Humidity 76 %
14-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Light rain
7°
Feels like 5°
Wind↑ WNW 11 km/h
Gusts28 km/h
Humidity 95 %
💧 2.8 mm
Koeln forecast in charts · next 7 days
The week ahead: highs and lows
≈ A week close to the usual temperatures
Highs Lows Usual for the season (1991–2020 average)
Hourly detail
Temperature (°C) Rain (mm) Wind (km/h)
Koeln climate: what a normal year looks like
From 16 h 32 min of daylight in late June to 7 h 55 min in late December.
There is no real dry season: monthly rainfall stays between 55 mm and 98 mm on average.
The hottest stretch is July, when afternoons average 23 °C; the coldest is January, when nights average 0 °C.
Even the coldest month, January, keeps nights above freezing on average (0 °C).
Forecast highs for the coming week average 12 °C, 2 °C cooler than a normal October (14 °C).
30-year averages (1991–2020)
Month
Typical high
Typical low
Rainfall
Jan
5 °C
0 °C
87 mm
Feb
7 °C
2 °C
74 mm
Mar
10 °C
3 °C
74 mm
Apr
14 °C
6 °C
55 mm
May
18 °C
9 °C
67 mm
Jun
21 °C
12 °C
75 mm
Jul
23 °C
15 °C
83 mm
Aug
23 °C
15 °C
84 mm
Sep
19 °C
11 °C
72 mm
Oct
14 °C
9 °C
81 mm
Nov
9 °C
5 °C
84 mm
Dec
6 °C
2 °C
98 mm
Whole year
14 °C
7 °C
930 mm
Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 50.93° N, 6.95° E, 1991–2020. ERA5 averages over a 0.25° grid (about 25 km): hills, a coastline or the heat of the city itself can shift local values by a degree or two.
Air you breathe in Koeln: pollution and pollen
2/6
Fair
European Air Quality Index (EAQI), from Copernicus CAMS
PM2.514µg/m³
PM1023µg/m³
O₃13µg/m³
NO₂36µg/m³
SO₂5µg/m³
Pollen
AlderNone
BirchNone
GrassNone
MugwortNone
OliveNone
RagweedNone
Copernicus CAMS model, updated several times a day.
Rain radar around Koeln
Rain observed over the last two hours by official weather radars around Koeln, followed by the radar forecast for the next hour where the weather service provides one.
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Rain radarLast two hours, then forecast where available · drag the timeline
Moon over Koeln
Waning gibbous
87 % illuminated · 18.3 days
Rise 04:35 Set 23:01
Fri30/1079%
Sat31/1069%
Sun1/1159%
Mon2/1149%Last quarter
Tue3/1138%
Wed4/1128%
Thu5/1119%
Fri6/1112%
Sat7/116%
Sun8/112%
Mon9/110%
Tue10/111%New moon
Moonrise and moonset in local time (Europe/Berlin); phase and lit fraction from a synodic calculation.
Look up a past day in Koeln
Curious about the weather in Koeln on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.
Koeln weather at a glance
This page gathers everything about the weather in Koeln, North Rhine-Westphalia: conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “partly cloudy”, it is 11 °C (feels like 11 °C) and the wind blows at 2 km/h.
Expected range today: 5 °C to 14 °C and a dry sky. The forecast comes from the AtmoAtlas engine, which combines ECMWF-AIFS, NOAA GFS and DWD ICON, adjusts cloud cover with METAR reports and uses convective energy (CAPE) to flag storms.
Use the Koeln forecast in your own website or app: one JSON call returns weather, air quality, tides and sun and moon times. The free key needs no card.
