11-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Overcast
3°
Feels like 1°
Wind↑ SW 6 km/h
Humidity 86 %
Afternoon
Clear sky
6°
Feels like 2°
Wind↑ WNW 21 km/h
Gusts35 km/h
Humidity 45 %
💧 0.1 mm
12-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Clear sky
-3°
Feels like -6°
Wind↑ NW 8 km/h
Gusts14 km/h
Humidity 83 %
Afternoon
Clear sky
3°
Feels like -1°
Wind↑ E 14 km/h
Humidity 50 %
13-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Overcast
-0°
Feels like -5°
Wind↑ E 18 km/h
Gusts46 km/h
Humidity 61 %
Afternoon
Light snow
0°
Feels like -5°
Wind↑ ESE 19 km/h
Gusts50 km/h
Humidity 90 %
💧 0.8 mm
14-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Night
Drizzle
3°
Feels like -1°
Wind↑ SE 15 km/h
Gusts39 km/h
Humidity 98 %
💧 0.4 mm
Afternoon
Overcast
6°
Feels like 6°
Wind↑ E 5 km/h
Gusts19 km/h
Humidity 98 %
Brno 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)
Brno climate: what a normal year looks like
From 16 h 14 min of daylight in late June to 8 h 11 min in late December.
Nights typically freeze from December to February, the coldest averaging −4 °C in January.
The hottest stretch is July, when afternoons average 24 °C; the coldest is January, when nights average −4 °C. Between those two months the average temperature changes by 21 °C.
A normal year brings roughly 680 mm of rain — less than 76% of the towns of 20,000+ people we compared it with.
Forecast highs for the coming week average 10 °C, 3 °C cooler than a normal October (13 °C).
30-year averages (1991–2020)
Month
Typical high
Typical low
Rainfall
Jan
1 °C
−4 °C
39 mm
Feb
4 °C
−2 °C
33 mm
Mar
7 °C
1 °C
45 mm
Apr
14 °C
6 °C
45 mm
May
18 °C
9 °C
70 mm
Jun
22 °C
13 °C
81 mm
Jul
24 °C
15 °C
89 mm
Aug
24 °C
15 °C
73 mm
Sep
19 °C
11 °C
68 mm
Oct
13 °C
7 °C
49 mm
Nov
7 °C
3 °C
47 mm
Dec
2 °C
−2 °C
43 mm
Whole year
13 °C
6 °C
680 mm
Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 49.20° N, 16.61° 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 Brno: pollution and pollen
3/6
Moderate
European Air Quality Index (EAQI), from Copernicus CAMS
PM2.522µg/m³
PM1026µg/m³
O₃32µg/m³
NO₂10µg/m³
SO₂1µg/m³
Pollen
AlderNone
BirchNone
GrassNone
MugwortNone
OliveNone
RagweedNone
Copernicus CAMS model, updated several times a day.
Rain radar around Brno
Rain observed over the last two hours by official weather radars around Brno, followed by the radar forecast for the next hour where the weather service provides one.
Rain radarLast two hours, then forecast where available · drag the timeline
Moon over Brno
Waning gibbous
87 % illuminated · 18.3 days
Rise 04:08 Set 22:09
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/Prague); phase and lit fraction from a synodic calculation.
Look up a past day in Brno
Curious about the weather in Brno on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.
Brno weather at a glance
This page gathers everything about the weather in Brno, South Moravian: 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 9 °C (feels like 9 °C) and the wind blows at 7 km/h.
Expected range today: 8 °C to 12 °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 Brno 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.
