Your June weather guide
HotWeather in Galle in June
Galle in June suits travellers who want warmth and can accept frequent rain, rather than those counting on clear skies. Daytime highs average about 28°C, nights stay around 25°C, and about 29 days have measurable rain. That makes it a hot, wet choice for a holiday from the UK. Go with flexible plans and light clothing, but choose another month if reliable sunshine is the main reason for your trip.
Long-term climate averages for Galle (south-west coast), not a forecast · 1991-2020
Galle, month by month
Your snapshot
At a glance
The useful details for Galle (south-west coast).
- Average daytime high
- 28.3°C
- 9 in 10 days stay below 29°C
- Average night-time low
- 25.4°C
- coldest 10% of nights: 25°C or lower
- Compared with London
- +8.7°C
- London averages 19.6°C in June
- Sea temperature
- 28.0°C
- year to year: 28°C to 29°C
- Sunshine per day (est.)
- 1.8h
- 15% of 12.3 h of daylight
- Rainy days (1 mm+)
- 29
- 268 mm over the month
- Humidity
- 86%
- Days over 25°C
- 100%
- none over 30°C
- Record high 1991-2020
- 29.9°C
- 1998-06-07
- Record low 1991-2020
- 24.0°C
- 1999-06-06
- Flight from London
- ≈ 11 h 48 min
- 8815 km, long-haul (estimate for a direct flight)
Records are observed extremes within 1991-2020, not typical holiday conditions. Warm-day percentages are shares of days, not day counts.
How June compares
June is the 6th warmest month of the year in Galle and ranks 50th of 134 destinations we compare for June - see where else is hot in June. Against London's average high of 19.6°C in June, Galle is 8.7°C warmer by day and 14.1°C warmer at night.
Daytime and night-time in June
The typical June day in Galle peaks at 28.3°C, but that is an average: the warmest 10% of days reach 29.1°C or more. About 100% of days top 25°C. Nights average 25.4°C; one night in ten drops to 24.6°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest June day here reached 29.9°C (1998-06-07) and the coldest night 24.0°C (1999-06-06).
Rain in June
Wet (more than 8 rainy days): about 29 days with 1 mm or more, 268 mm in total. Year to year it varies a lot - the wettest June was 2003 with 390 mm, the driest 2011 with 154 mm. Humidity averages 86%, which makes the heat feel heavier than the thermometer suggests.
Sea temperature in June
The sea averages 28.0°C - warm enough to swim (22°c+). Depending on the year it ranges from 27.5°C to 28.8°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 05:56 and sets about 18:24 local time in mid-June. Average cloud cover is 85%.
Is June 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 throughout the day, sticky after dark
The heat is steady rather than extreme: average daytime highs are 28.3°C, but humidity of 86% makes the warmth harder to shrug off. Loose, breathable clothes are a sensible choice, and it is worth keeping outdoor plans gentle around midday. Evenings offer little cooling, with average lows of 25.4°C, so do not expect the fresh nights you might get on a British summer holiday. Prioritise comfortable sleeping conditions when choosing accommodation. June is a reasonable fit if you enjoy warmth throughout the day, but less appealing if humid nights tend to leave you tired or uncomfortable.
Rain is the main compromise
With about 29 rainy days, wet weather needs to be part of your plans rather than treated as an unlikely interruption. Sunshine averages only about 1.8 hours a day despite 12.3 hours of daylight, so a long day does not mean a sunny one. Carry a light waterproof or umbrella, protect anything that needs to stay dry, and leave room to rearrange outdoor plans. Frequent rain does not establish that every day will be a washout, but it does make a sunshine-led holiday a poor bet. June suits a flexible traveller more than someone who wants to spend most days sunbathing.
Warm sea, but weigh up the journey
The sea averages 28°C, so water temperature is comfortably warm for swimming. That is a genuine advantage if you dislike a chilly dip, though warm water alone says nothing about waves, currents or safe conditions on the day. Check local advice before entering the sea. From London, the flight takes about 11 hours 48 minutes, making this a long-haul commitment for a month with limited sunshine. The balance works best if warm air and water matter more to you than blue skies. If dry outdoor time is your priority, the weather gives you reason to reconsider June.
A little perspective
Galle through the year
June is highlighted. See how it compares with the rest of the year.
| Month | Day | Night | Sea | Sun/day | Rain mm | Rainy days | Days 25°C+ |
|---|---|---|---|---|---|---|---|
| Januarybest | 28.4°C | 23.6°C | 27.7°C | 3.9 | 116 | 17 | 100% |
| Februarybest | 29.2°C | 23.9°C | 28.1°C | 4.7 | 100 | 15 | 100% |
| Marchbest | 29.8°C | 24.7°C | 29.0°C | 5.1 | 116 | 20 | 100% |
| April | 29.4°C | 25.4°C | 29.5°C | 3.5 | 226 | 27 | 100% |
| May | 28.7°C | 25.6°C | 28.9°C | 2.1 | 305 | 30 | 100% |
| JuneSelected | 28.3°C | 25.4°C | 28.0°C | 1.8 | 268 | 29 | 100% |
| July | 27.9°C | 25.1°C | 27.4°C | 1.8 | 244 | 30 | 100% |
| August | 27.8°C | 24.9°C | 27.4°C | 1.9 | 244 | 30 | 100% |
| September | 27.8°C | 24.8°C | 27.9°C | 2.0 | 275 | 28 | 100% |
| October | 28.0°C | 24.6°C | 28.2°C | 2.1 | 333 | 28 | 100% |
| November | 28.1°C | 24.3°C | 28.7°C | 2.2 | 363 | 26 | 100% |
| December | 28.2°C | 23.9°C | 28.2°C | 3.0 | 221 | 22 | 100% |
Day = average daytime high, night = average night-time low, 1991-2020.Sun is hours per day; rainy days count 1 mm or more.
Day, night and sea
Monthly average temperatures, 1991-2020
- Day
- Night
- Sea
Best months here
On warmth, low rainfall and sunshine, start with these.
Keep exploring
Similar in June
Closest matches on daytime temperature, sea temperature and sunshine, in other countries.
A little more detail
Galle in June FAQs
Plain answers, grounded in the averages.
Is Galle hot in June?
Galle is hot in June: the average daytime high is 28.3°C and nights average 25.4°C. About 100% of June days reach 25°C or more.
Can you swim in the sea in Galle in June?
The sea around Galle averages 28.0°C in June, which is warm enough for most people to swim comfortably. Between 1991 and 2020 it ranged from 28°C to 29°C depending on the year.
How much does it rain in Galle in June?
Galle sees about 29 rainy days (1 mm or more) and 268 mm of rain in a typical June. The wettest June between 1991 and 2020 was 2003 (390 mm) and the driest was 2011 (154 mm).
How sunny is Galle in June?
Galle gets around 1.8 hours of sunshine a day in June out of 12.3 hours of daylight (estimated from average cloud cover).
How does Galle compare with the UK in June?
Galle is on average 8.7°C warmer than London by day in June (28.3°C against 19.6°C).
What is the hottest June on record in Galle?
Between 1991 and 2020 the hottest June day in Galle reached 29.9°C on 1998-06-07, and the coldest night dropped to 24.0°C on 1999-06-06.
How much warmer is Galle than London in June?
Galle's average daytime high is 28.3°C, compared with 19.6°C in London, a difference of 8.7°C. It is a clear step up in warmth, but the high humidity and warm nights matter as much as the daytime temperature when judging comfort.
Which months are better choices than June?
March, February and January are the preferred months overall for weather in Galle. If your dates are flexible and weather is the deciding factor, favour those over June. June's main drawbacks are frequent rain, limited sunshine and humid conditions.
About these averages
ERA5-Land climate reanalysis via Open-Meteo (11 km grid) and NOAA Coral Reef Watch 5 km sea temperatures, 1991-2020
Averages computed from daily values at Galle (Galle (south-west coast)). Sea temperature from the nearest 5 km sea cell, 2.8 km from that point. Sunshine hours are estimated from average cloud cover.Records are the highest and lowest daily values in that 30-year period, not all-time records. These are climate averages, not a forecast for your trip. How we measure holiday weather
- Hot · 25°C+
- Warm · 20°C to below 25°C
- Mild · 15°C to below 20°C
- Cool · below 15°C