🇲🇹 Weather in Valletta in September
This is what the weather in Valletta (Malta) was like in September in 2017–2026.
Key facts at a glance
Avg. daytime high
27.0 °C
25.6 °C – 28.3 °C
Avg. night-time low
25.6 °C
24.2 °C – 26.9 °C
Avg. rain days in period
7.6
25 % of days · ≥ 1.0 mm
Avg. precipitation in period
37.4 mm
14.9 mm – 85.0 mm
Avg. sunshine per day
n/a
Sunshine duration is not available from this data source.
Avg. sea temperature
27.0 °C
Sea point approx. 6 km from the location
Extremes: Highest temperature 31.2 °C (7 Sep 2024) · Lowest temperature 21.6 °C (27 Sep 2018) · Avg. daily peak wind 21 km/h
Weather mix of all days
- 107Sunny
- 76Partly cloudy
- 21Cloudy
- 53Light rain
- 23Rain
Summary
- On average 27.0 °C during the day and 25.6 °C at night.
- On average 7.6 rain days (Rain day = at least 1.0 mm of precipitation) with 37.4 mm of precipitation in total.
- The sea averaged 27.0 °C.
- Prevailing: Sunny.
- Warmest year: 2026 (avg. 28.3 °C), coolest: 2017 (avg. 25.6 °C).
- Wettest year: 2020 (85.0 mm), driest: 2025 (14.9 mm).
- Extremes: 31.2 °C on 7 Sep 2024 and 21.6 °C on 27 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. max28.3°Avg. min26.9°- Rain days
- 10 Rain days
- Precipitation
- 37.1 mm
- Avg. sunshine per day
- n/a
- Sea temperature
- 28.7 °C
Max 30.7 °C · Min 24.4 °C
2025
Avg. max27.3°Avg. min25.9°- Rain days
- 2 Rain days
- Precipitation
- 14.9 mm
- Avg. cloud cover
- 30 % cloudy
- Sea temperature
- 27.0 °C
Max 29.2 °C · Min 24.1 °C
2024
Avg. max26.9°Avg. min25.4°- Rain days
- 5 Rain days
- Precipitation
- 26.2 mm
- Avg. cloud cover
- 50 % cloudy
- Sea temperature
- 26.7 °C
Max 31.2 °C · Min 22.6 °C
2023
Avg. max26.9°Avg. min25.3°- Rain days
- 7 Rain days
- Precipitation
- 29.3 mm
- Avg. cloud cover
- 50 % cloudy
- Sea temperature
- 26.4 °C
Max 28.4 °C · Min 23.3 °C
2022
Avg. max27.7°Avg. min26.1°- Rain days
- 6 Rain days
- Precipitation
- 46.1 mm
- Avg. cloud cover
- 33 % cloudy
- Sea temperature
- 27.2 °C
Max 29.4 °C · Min 22.7 °C
2021
Avg. max27.4°Avg. min26.0°- Rain days
- 7 Rain days
- Precipitation
- 26.2 mm
- Avg. cloud cover
- 34 % cloudy
- Sea temperature
- 27.2 °C
Max 28.7 °C · Min 24.8 °C
2020
Avg. max27.0°Avg. min25.6°- Rain days
- 14 Rain days
- Precipitation
- 85.0 mm
- Avg. cloud cover
- 44 % cloudy
- Sea temperature
- 27.1 °C
Max 28.5 °C · Min 22.5 °C
2019
Avg. max26.4°Avg. min25.3°- Rain days
- 10 Rain days
- Precipitation
- 36.1 mm
- Avg. cloud cover
- 36 % cloudy
- Sea temperature
- 26.5 °C
Max 28.1 °C · Min 24.0 °C
2018
Avg. max26.8°Avg. min25.4°- Rain days
- 8 Rain days
- Precipitation
- 29.0 mm
- Avg. cloud cover
- 40 % cloudy
- Sea temperature
- 27.1 °C
Max 28.7 °C · Min 21.6 °C
2017
Avg. max25.6°Avg. min24.2°- Rain days
- 7 Rain days
- Precipitation
- 43.6 mm
- Avg. cloud cover
- 31 % cloudy
- Sea temperature
- 25.7 °C
Max 28.0 °C · Min 22.2 °C
Frequently asked questions
- How warm is it in Valletta in September?
- Daytime highs averaged 27.0 °C, night-time lows 25.6 °C. The highest value of the past 10 years was 31.2 °C (7 Sep 2024), the lowest 21.6 °C (27 Sep 2018).
- How often does it rain in Valletta in September?
- On average there were 7.6 rain days (at least 1 mm) with 37.4 mm of precipitation in total.
- How warm is the sea in Valletta in September?
- The sea temperature averaged 27.0 °C (open-sea point approx. 6 km from the town).
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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. 6 km from the location (35.920, 14.570)
- Place search
- Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)