Weather in Galle in July

How July compares

July is the 10th warmest month of the year in Galle and ranks 81st of 134 destinations we compare for July - see where else is hot in July. Against London's average high of 21.8°C in July, Galle is 6.1°C warmer by day and 11.6°C warmer at night.

Daytime and night-time in July

The typical July day in Galle peaks at 27.9°C, but that is an average: the warmest 10% of days reach 28.8°C or more. About 100% of days top 25°C. Nights average 25.1°C; one night in ten drops to 24.2°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest July day here reached 29.8°C (2016-07-03) and the coldest night 23.6°C (1992-07-29).

Rain in July

Wet (more than 8 rainy days): about 30 days with 1 mm or more, 244 mm in total. Year to year it varies a lot - the wettest July was 1992 with 371 mm, the driest 2009 with 165 mm. Humidity averages 86%.

Sea temperature in July

The sea averages 27.4°C - warm enough to swim (22°c+). Depending on the year it ranges from 26.8°C to 28.1°C. For the warmest sea here, come in April (29.5°C).

Sunshine and daylight

Around 1.8 hours of sunshine a day (estimated from cloud cover), 12.3 hours of daylight: the sun rises about 06:02 and sets about 18:28 local time in mid-July. Average cloud cover is 86%.

Is July a good time to visit Galle?

It is a reasonable choice: hot days but expect showers. The best months for Galle on our scoring are March, February, January; months averaging 25°C or more: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec.

Expect wet weather, not long sunny spells

Rain needs to be part of your plans rather than treated as an occasional interruption. With about 30 rainy days, keeping your outdoor plans flexible makes more sense than relying on a dry forecast. That does not mean rain falls continuously, but you should not assume it will be confined to convenient short showers either. Sunshine averages just 1.8 hours within 12.3 hours of daylight, so a long day does not translate into much direct sun. Pack a light waterproof and clothes that dry easily, and leave room to change plans. If weather is your deciding factor, January, February and March are stronger choices for Galle.

Warm sea, humid days and little cooling at night

The heat is steady rather than extreme: average daytime temperatures sit around 28°C, but humidity of 86% can make being active feel sticky. Loose, lightweight clothing is more useful than heavy layers, and accommodation with effective cooling is worth prioritising because nights remain warm. Keep strenuous outdoor plans flexible and take breaks if the midday heat feels tiring. The sea averages 27.4°C, comfortably warm for swimming without a cold-water shock. Temperature alone does not establish safe swimming conditions, though, so follow local advice before entering the water. This combination suits someone comfortable with humid warmth more than someone hoping for crisp evenings or bright beach weather.