🇭🇷 Weather in Split in September
This is what the weather in Split (Dalmatia, Croatia) was like in September in 2017–2026.
Key facts at a glance
Avg. daytime high
25.3 °C
22.6 °C – 27.3 °C
Avg. night-time low
18.7 °C
16.9 °C – 20.1 °C
Avg. rain days in period
10.5
35 % of days · ≥ 1.0 mm
Avg. precipitation in period
96.6 mm
28.0 mm – 217 mm
Avg. sunshine per day
n/a
Sunshine duration is not available from this data source.
Avg. sea temperature
23.4 °C
Sea point approx. 3 km from the location
Extremes: Highest temperature 33.4 °C (1 Sep 2024) · Lowest temperature 9.8 °C (26 Sep 2018) · Avg. daily peak wind 20 km/h
Weather mix of all days
- 91Sunny
- 67Partly cloudy
- 16Cloudy
- 44Light rain
- 61Rain
Summary
- On average 25.3 °C during the day and 18.7 °C at night.
- On average 10.5 rain days (Rain day = at least 1.0 mm of precipitation) with 96.6 mm of precipitation in total.
- The sea averaged 23.4 °C.
- Prevailing: Sunny.
- Warmest year: 2026 (avg. 27.3 °C), coolest: 2017 (avg. 22.6 °C).
- Wettest year: 2024 (217 mm), driest: 2021 (28.0 mm).
- Extremes: 33.4 °C on 1 Sep 2024 and 9.8 °C on 26 Sep 2018.
Overall values from all 10 years. How is this calculated?
Charts
Temperatures per year
Average over your travel period
Precipitation & rain days
Year by year
2026
Avg. max27.3°Avg. min19.8°- Rain days
- 9 Rain days
- Precipitation
- 76.4 mm
- Avg. sunshine per day
- n/a
- Sea temperature
- 25.1 °C
Max 33.0 °C · Min 13.1 °C
2025
Avg. max25.7°Avg. min19.3°- Rain days
- 9 Rain days
- Precipitation
- 83.6 mm
- Avg. cloud cover
- 44 % cloudy
- Sea temperature
- 23.5 °C
Max 28.5 °C · Min 14.0 °C
2024
Avg. max24.5°Avg. min18.6°- Rain days
- 16 Rain days
- Precipitation
- 217 mm
- Avg. cloud cover
- 60 % cloudy
- Sea temperature
- 24.0 °C
Max 33.4 °C · Min 10.5 °C
2023
Avg. max27.0°Avg. min20.1°- Rain days
- 5 Rain days
- Precipitation
- 64.4 mm
- Avg. cloud cover
- 42 % cloudy
- Sea temperature
- 23.6 °C
Max 30.2 °C · Min 17.1 °C
2022
Avg. max23.9°Avg. min17.6°- Rain days
- 17 Rain days
- Precipitation
- 79.2 mm
- Avg. cloud cover
- 60 % cloudy
- Sea temperature
- 22.8 °C
Max 28.2 °C · Min 11.5 °C
2021
Avg. max25.5°Avg. min18.3°- Rain days
- 5 Rain days
- Precipitation
- 28.0 mm
- Avg. cloud cover
- 37 % cloudy
- Sea temperature
- 22.9 °C
Max 27.8 °C · Min 13.2 °C
2020
Avg. max25.8°Avg. min19.1°- Rain days
- 10 Rain days
- Precipitation
- 97.1 mm
- Avg. cloud cover
- 44 % cloudy
- Sea temperature
- 23.4 °C
Max 31.6 °C · Min 13.0 °C
2019
Avg. max25.1°Avg. min18.5°- Rain days
- 11 Rain days
- Precipitation
- 74.0 mm
- Avg. cloud cover
- 47 % cloudy
- Sea temperature
- 23.0 °C
Max 29.9 °C · Min 13.3 °C
2018
Avg. max25.5°Avg. min18.6°- Rain days
- 6 Rain days
- Precipitation
- 67.9 mm
- Avg. cloud cover
- 41 % cloudy
- Sea temperature
- 23.9 °C
Max 28.4 °C · Min 9.8 °C
2017
Avg. max22.6°Avg. min16.9°- Rain days
- 17 Rain days
- Precipitation
- 178 mm
- Avg. cloud cover
- 51 % cloudy
- Sea temperature
- 21.9 °C
Max 26.5 °C · Min 12.5 °C
Frequently asked questions
- How warm is it in Split in September?
- Daytime highs averaged 25.3 °C, night-time lows 18.7 °C. The highest value of the past 10 years was 33.4 °C (1 Sep 2024), the lowest 9.8 °C (26 Sep 2018).
- How often does it rain in Split in September?
- On average there were 10.5 rain days (at least 1 mm) with 96.6 mm of precipitation in total.
- How warm is the sea in Split in September?
- The sea temperature averaged 23.4 °C (open-sea point approx. 3 km from the town).
Check your exact travel dates
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Other destinations in September
Data sources
- Weather data
- Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains. - Sea temperature
- MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis) - Sea point approx. 3 km from the location (43.480, 16.440)
- Place search
- Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)