Weather in Valletta in August

How August compares

August is the 1st warmest month of the year in Valletta and ranks 81st of 134 destinations we compare for August - see where else is hot in August. Within Malta it is 3rd of 4 (Malta in August). Against London's average high of 21.4°C in August, Valletta is 6.7°C warmer by day and 11.0°C warmer at night.

Daytime and night-time in August

The typical August day in Valletta peaks at 28.1°C, but that is an average: the warmest 10% of days reach 29.9°C or more. About 100% of days top 25°C and 1 in 10 pass 30°C. Nights average 24.5°C; one night in ten drops to 23.1°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest August day here reached 35.0°C (2017-08-07) and the coldest night 20.9°C (1997-08-23).

Rain in August

Dry (3 rainy days or fewer): about 1 days with 1 mm or more, 3 mm in total. Year to year it varies a lot - the wettest August was 1997 with 22 mm, the driest 1991 with 0 mm. Humidity averages 75%, which makes the heat feel heavier than the thermometer suggests.

Sea temperature in August

The sea averages 26.7°C - warm enough to swim (22°c+). Depending on the year it ranges from 25.7°C to 27.8°C. This is the warmest the sea gets here all year.

Sunshine and daylight

Around 12.5 hours of sunshine a day (estimated from cloud cover), 13.4 hours of daylight: the sun rises about 06:21 and sets about 19:52 local time in mid-August. Average cloud cover is 7%.

Is August a good time to visit Valletta?

Yes - it is one of the better months: hot days, little rain and long sunny days. The best months for Valletta on our scoring are July, June, August; months averaging 25°C or more: Jul, Aug, Sep.

Hot days, with little relief at night

August is Valletta's warmest month, so go expecting heat rather than hoping for mild walking weather. Days consistently reach 25°C, while 30°C is reached on 10% of days: very hot afternoons are possible, but they are not the everyday average. Humidity of 75% can make the warmth feel heavier, particularly when you are moving around. Keep longer walks for earlier in the day, take a shaded break at midday and carry water. Light, loose clothing makes sense, and warm nights mean air conditioning is a sensible accommodation priority. This suits travellers comfortable with sustained summer warmth more than anyone who needs a cool evening to recharge.

Dry weather and long sunshine hours

Rain is unlikely to dictate your holiday, with about 1 rainy day during August. That makes outdoor plans easier to keep flexible without building the trip around wet-weather alternatives, although a shower cannot be ruled out. Sunshine averages about 12.5 hours a day, leaving plenty of opportunity to be outside without spending the hottest part of the day in direct sun. Pack sunscreen, sunglasses and a hat ahead of bulky waterproof clothing. The catch is that reliably sunny weather also means you need to manage your exposure: shade and indoor breaks are useful parts of the day, not signs of wasted holiday time.

Warm sea, but not a cold plunge

The sea is a strong reason to choose August, averaging 26.7°C, with a year-to-year range of 26°C to 28°C. That is comfortably within swimming territory, making this a good fit if you dislike the initial chill of getting into cooler water. Do not expect the sea to feel cold enough to cancel out the afternoon heat, though. Swimming is better treated as part of a relaxed day than as your only cooling strategy. Pack swimwear alongside light city clothes, and keep sun protection in mind around the water. Warm evenings also favour light clothing rather than the layers you might routinely carry on a British summer holiday.