September weather forecast
Valletta, Malta

The cityscape of Valletta, Malta
The cityscape of Valletta, Malta

Weather in September

The first month of the autumn, September, is also a moderately hot month in Valletta, Malta, with temperature in the range of an average high of 28°C (82.4°F) and an average low of 20.1°C (68.2°F).
The perfect water temperature of 25.7°C (78.3°F) with 40mm (1.57") of accumulated rainfall and only 4 rainfall days, makes September a great period for swimming and other water activities.

Temperature

In September, the average high-temperature is essentially the same as in August - a warm 28°C (82.4°F). The average low-temperature, in Valletta, is 20.1°C (68.2°F).

Rainfall

In Valletta, it is raining for 4 days, with typically 40mm (1.57") of accumulated precipitation. Throughout the year, there are 80 rainfall days, and 553mm (21.77") of precipitation is accumulated.

Sea temperature

In Valletta, Malta, the average water temperature is 25.7°C (78.3°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In Valletta, the average length of the day in September is 12h and 24min.
On the first day of September in Valletta, sunrise is at 6:33 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:47 pm CEST.

Sunshine

The average sunshine in September in Valletta, Malta, is 9h.

UV index

In September, the average daily maximum UV index in Valletta is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
[Resources]

FAQ

How many days does it rain in September in Valletta?

In Valletta, Malta, in September, it is raining for 4 days, with typically 40mm (1.57") of accumulated precipitation.

What is the water temperature in September in Valletta?

In September, the average sea temperature in Valletta is 25.7°C (78.3°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Valletta have in September?

In Valletta, Malta, the average day length in September is 12h and 24min.

When are sunrise and sunset in September in Valletta?

On the first day of September, sunrise is at 6:33 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:47 pm CEST.

How many hours of sunshine does Valletta have in September?

In September, the average sunshine duration is 9h.

What is the UV index intensity in September in Valletta?

The average daily maximum UV index in September in Valletta is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.

Average temperature in September
Valletta, Malta

Average temperature in September - Valletta, Malta
  • Average high temperature in September: 28°C

The warmest months (with the highest average high temperature) are July and August (30.7°C).
The month with the lowest average high temperature is January (15.2°C).

  • Average low temperature in September: 20.1°C

The month with the highest average low temperature is August (21.8°C).
The coldest month (with the lowest average low temperature) is January (9.2°C).

[Resources]

Average rainfall in September
Valletta, Malta

Average rainfall in September - Valletta, Malta
  • Average rainfall in September: 40mm

The wettest month (with the highest rainfall) is December (112mm).
The driest month (with the least rainfall) is July (0mm).

[Resources]

Average rainfall days in September
Valletta, Malta

Average rainfall days in September - Valletta, Malta
  • Average rainfall days in September: 4 days

The months with the highest number of rainy days are January and December (13 days).
The month with the least rainy days is July (0 days).

[Resources]

Average sea temperature in September
Valletta, Malta

Average sea temperature in September - Valletta, Malta
  • Average sea temperature in September: 25.7°C

The best month for swimming (with the highest average sea temperature) is August (26.1°C).
The coldest months (with the lowest average sea temperature) are February and March (15.4°C).

[Resources]

Average daylight in September /
Average sunshine in September
Valletta, Malta

Average daylight in September / Average sunshine in September - Valletta, Malta
  • Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 34min).
The month with the shortest days is December (Average daylight: 9h and 46min).

  • Average sunshine in September: 9h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.2h).

[Resources]

Average UV index in September
Valletta, Malta

Average UV index in September - Valletta, Malta
  • Average UV index in September: 7

The months with the highest UV index are June and July (UV index 10).
The months with the lowest UV index are January and December (UV index 2).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location