Detailed weather forecast for Bratislava, Slovakia: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Bratislava
today🌧️20°💧 1.7 mm
Sun🌤️23°💧 0.5 mm
Mon🌤️24°💧 0.3 mm
Tue🌧️25°💧 0.8 mm
Wed🌧️25°💧 0.4 mm
Thu🌧️18°💧 0.9 mm
Fri🌤️22°💧 8.8 mm
Sat☀️22°💧 2.1 mm
Forecast vs 1991-2020 climate normal
How does the current forecast compare with normal?
We compare the coming days with weather usually observed at this time of year.
NASA POWER
Thursday 10 Sept in Bratislava, the forecast high is 18°C. Typical daytime temperatures at this time of year range from 20°C to 27°C, so it will be cooler than usual. It is cooler than 89% of similar days.
20°Ccooler than usual
usually 20°C–28°C
cooler than 85% of similar days
night: exceptionally warmrain: more rain than usualwind: stronger than usual
23°Cnear normal
usually 20°C–28°C
night: warmer than usualrain: typical rainfallwind: typical
24°Cnear normal
usually 20°C–28°C
night: exceptionally warmrain: typical rainfallwind: lighter than usual
From 1981 to 2025, the 5-11 Sept period averaged 24°C by day. The coolest year was 2007 (16°C) and the warmest was 2023 (29°C). The current forecast averages 22°C - lower than in 78% of historical years.
Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.
Weather warnings - Bratislava
No active weather warnings for Bratislava (region: Bratislava). The national weather service is not forecasting dangerous conditions.
14-day forecast - Bratislava
Bratislava 30 & 45-day weather - long-range outlook
Next 16 days · forecast
21°
around 16° at night · days with rain: 8
Weeks 3-4 · avg for September
22°
around 12° at night · rain chance 46%
Weeks 5-7 · avg for October
15°
around 7° at night · rain chance 51%
The 30 & 45-day outlook for Bratislava: the next 16 days are a numerical forecast updated daily - on average 21° by day and 16° at night. Further out we rely on multi-year climate averages: around 22° in September, and about 15° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for Bratislava
Saturday5 September 2026
🌧️20°light rain
sunrise 06:14 · sunset 19:26 · night 20° · evening 25° · rain 1.68 mm · humidity 63% · wind 8 m/s · clouds 100%
Sunday6 September 2026
🌤️23°scattered clouds
sunrise 06:15 · sunset 19:24 · night 15° · evening 26° · rain 0.48 mm · humidity 36% · wind 6 m/s · clouds 31%
Monday7 September 2026
🌤️24°scattered clouds
sunrise 06:17 · sunset 19:22 · night 20° · evening 26° · rain 0.3 mm · humidity 29% · wind 3 m/s · clouds 46%
Tuesday8 September 2026
🌧️25°light rain
sunrise 06:18 · sunset 19:20 · night 22° · evening 30° · rain 0.83 mm · humidity 41% · wind 2 m/s · clouds 66%
Wednesday9 September 2026
🌧️25°light rain
sunrise 06:20 · sunset 19:18 · night 16° · evening 27° · rain 0.36 mm · humidity 43% · wind 10 m/s · clouds 11%
Thursday10 September 2026
🌧️18°light rain
sunrise 06:21 · sunset 19:15 · night 15° · evening 18° · rain 0.93 mm · humidity 51% · wind 7 m/s · clouds 100%
Friday11 September 2026
🌤️22°scattered clouds
sunrise 06:22 · sunset 19:13 · night 18° · evening 24° · rain 8.76 mm · humidity 36% · wind 3 m/s · clouds 50%
Saturday12 September 2026
☀️22°clear sky
sunrise 06:24 · sunset 19:11 · night 16° · evening 23° · rain 2.07 mm · humidity 48% · wind 7 m/s · clouds 9%
Sunday13 September 2026
🌧️18°light rain
sunrise 06:25 · sunset 19:09 · night 13° · evening 20° · rain 2.37 mm · humidity 57% · wind 7 m/s · clouds 97%
Monday14 September 2026
☀️18°clear sky
sunrise 06:26 · sunset 19:07 · night 13° · evening 21° · rain 1.2 mm · humidity 41% · wind 4 m/s · clouds 1%
Tuesday15 September 2026
🌤️21°scattered clouds
sunrise 06:28 · sunset 19:05 · night 16° · evening 25° · rain 1.53 mm · humidity 38% · wind 7 m/s · clouds 48%
Wednesday16 September 2026
☀️23°clear sky
sunrise 06:29 · sunset 19:03 · night 18° · evening 27° · rain 24.12 mm · humidity 31% · wind 9 m/s · clouds 6%
Thursday17 September 2026
☁️23°broken clouds
sunrise 06:31 · sunset 19:01 · night 19° · evening 26° · rain 1.47 mm · humidity 47% · wind 4 m/s · clouds 72%
Today the UV index in Bratislava is 5 (moderate) - unprotected fair skin can burn in about 45 minutes. Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.
Pollen in Bratislava - info for allergy sufferers
Today ragweed pollen is highest in Bratislava - about 91 grains/m³, very high level. Allergy sufferers should limit time outdoors on dry, windy days and take medication as advised. Pollen levels are a CAMS model forecast and are indicative.
Bratislava weather through the year
Warmest, driest months on average: April, May, June, July.
Upcoming public holidays in Slovakia: All Saints’ Day — 1 November · Christmas Eve — 24 December · Christmas Day — 25 December.