Valletta weather in September
September in Valletta: hot, dry — a great time to visit.
#10 of 12 months in Valletta · #368 of 604 destinations to visit in September · comfort 76/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Valletta climate normals — September
| Daytime high | 27°C / 80°F | 🥵 hot |
|---|---|---|
| Nighttime low | 24°C / 75°F | |
| Feels like (high) | 30°C / 86°F | |
| Rainfall | 27 mm / 1.1 in | ☀️ dry |
| Rainy days | 4 days | |
| Humidity | 73% | 💧 humid |
| Dew point | 20°C / 68°F | |
| Sunshine | 11.1 h/day | |
| Daylight | 12.4 h | |
| Wind | 24 km/h / 15 mph | |
| Air quality (US AQI) | 51 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Valletta?
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Valletta in September — FAQ
- Is September a good time to visit Valletta?
- September in Valletta: hot, dry — a great time to visit. It ranks #10 of 12 months for Valletta on SeasonMap's comfort score (76/100).
- What is the weather like in Valletta in September?
- In September, Valletta averages a daily high of 26.8°C and a low of 23.9°C, with about 26.8 mm of rain over roughly 4.2 rainy days.
- What is the air quality in Valletta in September?
- Valletta has a mean US Air Quality Index of about 51 in September.