Detailed weather forecast for Brač, Croatia: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Brač
today☀️29°💧 3.3 mm
Sun☀️29°💧 0.3 mm
Mon☀️27°💧 0.8 mm
Tue🌤️26°💧 0.7 mm
Wed🌧️25°💧 0.7 mm
Thu🌧️25°💧 0.9 mm
Fri🌧️24°💧 4.2 mm
Sat🌧️22°💧 0.6 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
Saturday 5 Sept in Brač, the forecast high is 29°C. Typical daytime temperatures at this time of year range from 22°C to 29°C, so it will be warmer than usual. It is warmer than 83% of similar days.
29°Cwarmer than usual
usually 22°C–29°C
warmer than 83% of similar days
night: exceptionally warmrain: more rain than usualwind: exceptionally light
29°Cwarmer than usual
usually 22°C–28°C
warmer than 81% of similar days
night: exceptionally warmrain: typical rainfallwind: lighter than usual
27°Cwarmer than usual
usually 22°C–28°C
warmer than 71% of similar days
night: exceptionally warmrain: more rain than usualwind: exceptionally light
26°Cnear normal
usually 22°C–28°C
night: exceptionally warmrain: more rain than usualwind: exceptionally light
25°Cnear normal
usually 21°C–28°C
night: exceptionally warmrain: more rain than usualwind: exceptionally light
25°Cnear normal
usually 21°C–28°C
night: exceptionally warmrain: more rain than usualwind: lighter than usual
24°Cnear normal
usually 21°C–28°C
night: exceptionally warmrain: more rain than usualwind: exceptionally light
How warm was this week in previous years?
Each bar shows the average daily high during the same 7-day period in each year.
From 1981 to 2025, the 5-11 Sept period averaged 25°C by day. The coolest year was 2007 (18°C) and the warmest was 2008 (31°C). The current forecast averages 27°C - higher than in 71% 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Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window.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 - Brač
Heatyellow level
from 5 Sept, 00:01 to 8 Sept, 23:59
Areas: Split region
High temperatures and risk of overheating. Drink plenty of water, avoid the midday sun and look after the elderly.
Source: national weather service via Meteoalarm (EUMETNET). Yellow - be aware, orange - be prepared, red - take action.
14-day forecast - Brač
Brač 30 & 45-day weather - long-range outlook
Next 16 days · forecast
23°
around 19° at night · days with rain: 6
Weeks 3-4 · avg for September
27°
around 18° at night · rain chance 20%
Weeks 5-7 · avg for October
22°
around 15° at night · rain chance 23%
The 30 & 45-day outlook for Brač: the next 16 days are a numerical forecast updated daily - on average 23° by day and 19° at night. Further out we rely on multi-year climate averages: around 27° in September, and about 22° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for Brač
Saturday5 September 2026
☀️29°clear sky
sunrise 06:21 · sunset 19:22 · night 25° · evening 29° · rain 3.27 mm · humidity 34% · wind 3 m/s · clouds 1%
Sunday6 September 2026
☀️29°clear sky
sunrise 06:22 · sunset 19:21 · night 21° · evening 27° · rain 0.27 mm · humidity 37% · wind 4 m/s · clouds 1%
Monday7 September 2026
☀️27°clear sky
sunrise 06:23 · sunset 19:19 · night 21° · evening 25° · rain 0.75 mm · humidity 41% · wind 3 m/s · clouds 3%
Tuesday8 September 2026
🌤️26°scattered clouds
sunrise 06:25 · sunset 19:17 · night 20° · evening 26° · rain 0.72 mm · humidity 41% · wind 3 m/s · clouds 46%
Wednesday9 September 2026
🌧️25°light rain
sunrise 06:26 · sunset 19:15 · night 20° · evening 25° · rain 0.73 mm · humidity 49% · wind 3 m/s · clouds 26%
Thursday10 September 2026
🌧️25°light rain
sunrise 06:27 · sunset 19:13 · night 20° · evening 24° · rain 0.9 mm · humidity 48% · wind 4 m/s · clouds 44%
Friday11 September 2026
🌧️24°light rain
sunrise 06:28 · sunset 19:12 · night 19° · evening 23° · rain 4.23 mm · humidity 53% · wind 3 m/s · clouds 71%
Saturday12 September 2026
🌧️22°light rain
sunrise 06:29 · sunset 19:10 · night 19° · evening 23° · rain 0.63 mm · humidity 72% · wind 3 m/s · clouds 92%
Sunday13 September 2026
🌧️22°light rain
sunrise 06:30 · sunset 19:08 · night 19° · evening 23° · rain 2.13 mm · humidity 68% · wind 4 m/s · clouds 87%
Monday14 September 2026
🌧️24°light rain
sunrise 06:31 · sunset 19:06 · night 19° · evening 23° · rain 0.21 mm · humidity 48% · wind 4 m/s · clouds 16%
Tuesday15 September 2026
☀️24°clear sky
sunrise 06:32 · sunset 19:04 · night 19° · evening 24° · rain 4.71 mm · humidity 46% · wind 3 m/s · clouds 28%
Wednesday16 September 2026
☀️24°clear sky
sunrise 06:33 · sunset 19:03 · night 20° · evening 24° · rain 25.41 mm · humidity 53% · wind 3 m/s · clouds 79%
Thursday17 September 2026
☀️18°clear sky
sunrise 06:34 · sunset 19:01 · night 15° · evening 19° · rain 0.81 mm · humidity 54% · wind 2 m/s · clouds 5%
Friday18 September 2026
🌧️18°light rain
sunrise 06:36 · sunset 18:59 · night 15° · evening 17° · rain 4.71 mm · humidity 62% · wind 4 m/s · clouds 61%
sunrise 06:38 · sunset 18:55 · night 17° · evening 17° · humidity 38% · wind 9 m/s
UV index in Brač - is it safe to sunbathe?
Today the UV index in Brač is 6 (high) - unprotected fair skin can burn in about 30 minutes. SPF 30-50, a hat and sunglasses are a must. Better stay in shade between 11:00 and 15:00.
Pollen in Brač - info for allergy sufferers
Today ragweed pollen is highest in Brač - about 13 grains/m³, moderate level. Most allergy sufferers should not feel strong symptoms. Pollen levels are a CAMS model forecast and are indicative.