September weather forecast
Valletta, Malta

September signals the seasonal shift from summer to autumn bringing a certain cooling down effect to Valletta's weather pattern. Nevertheless, it remains comfortably warm during the day with temperatures gently receding from the summer highs. An increase in rainfall to 40mm (1.57") signifies a transition, returning life to the city's flora after months of aridity. Sea temperature still clocks in a pleasant 25.7°C (78.3°F), inviting last-minute summer swims. Equally, the UV index does slide down to a safer level of 7.

Temperature

Valletta's average high-temperature in September is a moderately hot 28°C (82.4°F), marking an insignificant difference from the 30.7°C (87.3°F) of August. Valletta, during the nights of September, experiences an average temperature drop to a pleasant 20.1°C (68.2°F).

Rainfall

In Valletta, during September, the rain falls for 4 days and regularly aggregates up to 40mm (1.57") of precipitation. In Valletta, during the entire year, the rain falls for 80 days and collects up to 553mm (21.77") of precipitation.

Sea temperature

In Valletta, Malta, in September, the average water temperature is 25.7°C (78.3°F).
Note: For engaging in any water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) are viewed as outstanding and exceptionally pleasing for prolonged durations.

Daylight

In September, the average length of the day is 12h and 24min.
On the first day of the month, sunrise is at 6:34 am and sunset at 7:29 pm. On the last day of September, sunrise is at 6:56 am and sunset at 6:47 pm CEST.

Sunshine

In Valletta, the average sunshine in September is 9h.

UV index

The average daily maximum UV index in September in Valletta, Malta, is 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Stay aware! UV radiation is magnified when reflecting off sand and water.