Weather in Galle in October

How October compares

October is the 9th warmest month of the year in Galle and ranks 34th of 134 destinations we compare for October - see where else is hot in October. Against London's average high of 14.6°C in October, Galle is 13.4°C warmer by day and 16.2°C warmer at night.

Daytime and night-time in October

The typical October day in Galle peaks at 28.0°C, but that is an average: the warmest 10% of days reach 28.9°C or more. About 100% of days top 25°C. Nights average 24.6°C; one night in ten drops to 23.9°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest October day here reached 29.9°C (2019-10-27) and the coldest night 22.8°C (2019-10-01).

Rain in October

Wet (more than 8 rainy days): about 28 days with 1 mm or more, 333 mm in total. Year to year it varies a lot - the wettest October was 2015 with 568 mm, the driest 2020 with 137 mm. Humidity averages 86%, which makes the heat feel heavier than the thermometer suggests.

Sea temperature in October

The sea averages 28.2°C - warm enough to swim (22°c+). Depending on the year it ranges from 27.7°C to 29.0°C. For the warmest sea here, come in April (29.5°C).

Sunshine and daylight

Around 2.1 hours of sunshine a day (estimated from cloud cover), 11.9 hours of daylight: the sun rises about 05:55 and sets about 17:55 local time in mid-October. Average cloud cover is 82%.

Is October 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.

Warm enough for swimming, humid enough to feel sticky

The heat is steady rather than extreme: days typically reach 28°C, while nights average 24.6°C, so evenings offer little cooling. Humidity of 86% makes light, loose clothing more useful than heavy layers, and accommodation with effective cooling is a sensible priority. Keep daytime plans unhurried and allow breaks if you find sticky conditions tiring. The sea averages 28.2°C, comfortably warm enough for swimming without a cold-water shock. That makes October appealing if water temperature matters more to you than blue skies. Warm water does not, however, tell you whether conditions are safe for a swim; check local advice before entering. Pack mainly for heat, with clothes that dry readily after rain.

Plan around rain, not guaranteed sunny spells

With about 28 rainy days and 333 mm of rain across the month, wet weather is a central part of the decision, not a minor packing detail. The figures do not mean it rains continuously, but they leave little basis for expecting reliably dry days. Sunshine averages 2.1 hours out of 11.9 hours of daylight, so daylight should not be confused with clear skies. Keep outdoor plans movable, carry a lightweight waterproof and protect anything that needs to stay dry. Avoid assuming the morning or afternoon will reliably be better. October is a reasonable choice if warmth is enough and you can change plans; it is a poor fit if sustained sunshine is the main reason for travelling.