How warm is it in Rimini in September?

Daytime highs averaged 25.1 °C, night-time lows 17.9 °C. The highest value of the past 10 years was 34.4 °C (4 Sep 2026), the lowest 10.8 °C (26 Sep 2020).

How often does it rain in Rimini in September?

On average there were 9.6 rain days (at least 1 mm) with 69.7 mm of precipitation in total.

🇮🇹 Weather in Rimini in September

This is what the weather in Rimini (Emilia-Romagna, Italy) was like in September in 2017–2026.

Key facts at a glance

Prevailing weather: Sunny

Avg. daytime high

25.1 °C

22.8 °C – 27.5 °C

Avg. night-time low

17.9 °C

15.9 °C – 19.9 °C

Avg. rain days in period

9.6

32 % of days · ≥ 1.0 mm

Avg. precipitation in period

69.7 mm

19.7 mm – 149 mm

Avg. sunshine per day

n/a

Sunshine duration is not available from this data source.

Avg. sea temperature

–

Sea temperature unavailable for today (daily limit).

Extremes: Highest temperature 34.4 °C (4 Sep 2026) · Lowest temperature 10.8 °C (26 Sep 2020) · Avg. daily peak wind 19 km/h

Weather mix of all days

116Sunny
49Partly cloudy
14Cloudy
52Light rain
44Rain

Summary

On average 25.1 °C during the day and 17.9 °C at night.
On average 9.6 rain days (Rain day = at least 1.0 mm of precipitation) with 69.7 mm of precipitation in total.
Prevailing: Sunny.
Warmest year: 2026 (avg. 27.5 °C), coolest: 2017 (avg. 22.8 °C).
Wettest year: 2024 (149 mm), driest: 2023 (19.7 mm).
Extremes: 34.4 °C on 4 Sep 2026 and 10.8 °C on 26 Sep 2020.

Overall values from all 10 years. How is this calculated?

Temperatures per year

Average over your travel period

Precipitation & rain days

Year by year

2026
Avg. max27.5°Avg. min19.9°
Rain days
5 Rain days
Precipitation
28.3 mm
Avg. sunshine per day
n/a
Sea temperature
–
Max 34.4 °C · Min 15.1 °C
2025
Avg. max26.0°Avg. min18.0°
Rain days
7 Rain days
Precipitation
59.3 mm
Avg. cloud cover
38 % cloudy
Sea temperature
–
Max 29.8 °C · Min 14.3 °C
2024
Avg. max24.4°Avg. min17.9°
Rain days
13 Rain days
Precipitation
149 mm
Avg. cloud cover
57 % cloudy
Sea temperature
–
Max 31.4 °C · Min 12.5 °C
2023
Avg. max26.4°Avg. min18.9°
Rain days
4 Rain days
Precipitation
19.7 mm
Avg. cloud cover
33 % cloudy
Sea temperature
–
Max 30.2 °C · Min 15.8 °C
2022
Avg. max24.2°Avg. min17.2°
Rain days
16 Rain days
Precipitation
111 mm
Avg. cloud cover
43 % cloudy
Sea temperature
–
Max 29.5 °C · Min 11.5 °C
2021
Avg. max25.2°Avg. min17.8°
Rain days
8 Rain days
Precipitation
30.1 mm
Avg. cloud cover
34 % cloudy
Sea temperature
–
Max 29.7 °C · Min 14.4 °C
2020
Avg. max25.0°Avg. min17.7°
Rain days
10 Rain days
Precipitation
83.3 mm
Avg. cloud cover
31 % cloudy
Sea temperature
–
Max 28.4 °C · Min 10.8 °C
2019
Avg. max24.7°Avg. min17.1°
Rain days
11 Rain days
Precipitation
62.4 mm
Avg. cloud cover
36 % cloudy
Sea temperature
–
Max 29.1 °C · Min 13.6 °C
2018
Avg. max25.0°Avg. min18.1°
Rain days
7 Rain days
Precipitation
35.1 mm
Avg. cloud cover
32 % cloudy
Sea temperature
–
Max 29.0 °C · Min 12.1 °C
2017
Avg. max22.8°Avg. min15.9°
Rain days
15 Rain days
Precipitation
119 mm
Avg. cloud cover
47 % cloudy
Sea temperature
–
Max 28.7 °C · Min 12.3 °C

Frequently asked questions

How warm is it in Rimini in September?: Daytime highs averaged 25.1 °C, night-time lows 17.9 °C. The highest value of the past 10 years was 34.4 °C (4 Sep 2026), the lowest 10.8 °C (26 Sep 2020).
How often does it rain in Rimini in September?: On average there were 9.6 rain days (at least 1 mm) with 69.7 mm of precipitation in total.

Check your exact travel dates

Choose your travel period – we show the weather for exactly those days.

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)
Place search: Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)