Your June weather guide
HotWeather in Sicily in June
June is a good choice for Sicily if you want hot, mostly dry weather and can plan around the midday heat. Average highs of 28.5°C make this a proper summer trip, while nights average 19.6°C, so evenings usually stay mild. The catch is the sea: at 21.8°C, it is still bracing rather than reliably warm. This month suits travellers who want sunshine but do not need bath-like water for swimming.
Long-term climate averages for Catania (east coast), not a forecast · 1991-2020
Sicily, month by month
Your snapshot
At a glance
The useful details for Catania (east coast).
- Average daytime high
- 28.5°C
- 9 in 10 days stay below 33°C
- Average night-time low
- 19.6°C
- coldest 10% of nights: 17°C or lower
- Compared with London
- +8.9°C
- London averages 19.6°C in June
- Sea temperature
- 21.8°C
- year to year: 21°C to 23°C
- Sunshine per day (est.)
- 11.4h
- 78% of 14.6 h of daylight
- Rainy days (1 mm+)
- 3
- 19 mm over the month
- Humidity
- 62%
- Days over 25°C
- 88%
- 32% over 30°C
- Record high 1991-2020
- 41.7°C
- 2019-06-23
- Record low 1991-2020
- 12.5°C
- 2006-06-05
- Flight from London
- ≈ 3 h 12 min
- 1936 km, short-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 3rd warmest month of the year in Sicily and ranks 44th of 134 destinations we compare for June - see where else is hot in June. Within Italy it is 1st of 16 (Italy in June). Against London's average high of 19.6°C in June, Sicily is 8.9°C warmer by day and 8.3°C warmer at night.
Daytime and night-time in June
The typical June day in Sicily peaks at 28.5°C, but that is an average: the warmest 10% of days reach 32.5°C or more. About 88% of days top 25°C and 1 in 3 pass 30°C. Nights average 19.6°C; one night in ten drops to 16.6°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest June day here reached 41.7°C (2019-06-23) and the coldest night 12.5°C (2006-06-05).
Rain in June
Dry (3 rainy days or fewer): about 3 days with 1 mm or more, 19 mm in total. Year to year it varies a lot - the wettest June was 2016 with 77 mm, the driest 2012 with 0 mm. Humidity averages 62%.
Sea temperature in June
The sea averages 21.8°C - bracing (18-22°c). Depending on the year it ranges from 21.0°C to 22.7°C. For the warmest sea here, come in August (26.4°C).
Sunshine and daylight
Around 11.4 hours of sunshine a day (estimated from cloud cover), 14.6 hours of daylight: the sun rises about 05:38 and sets about 20:22 local time in mid-June. Average cloud cover is 22%.
Is June a good time to visit Sicily?
Yes - it is one of the better months: hot days, little rain and long sunny days. The best months for Sicily on our scoring are July, August, June; months averaging 25°C or more: Jun, Jul, Aug, Sep.
Expect heat, not just pleasant warmth
Pack for hot days rather than a warmer version of a British June. Temperatures reach 30°C on 32% of days, and the hottest days can make prolonged time outdoors uncomfortable. Put more active plans earlier in the day or towards evening, leaving room for shade and a slower pace around midday. Loose, breathable clothing, sun protection and water are sensible daily essentials. Evenings are generally mild enough for light clothes, but a thin layer is useful: the coldest nights can fall to 16.6°C or below. June works well if you enjoy heat and can adjust your plans; it is less suitable if you want consistently cool conditions for being active outdoors.
Plenty of sunshine, but a cooler sea
With about 11.4 hours of sunshine within 14.6 hours of daylight, June gives you plenty of scope to spend time outdoors without fitting everything into the hottest part of the day. That does not mean every day will be cloudless, so keep some flexibility rather than treating sunshine as guaranteed. Swimming is a separate consideration from air temperature. The sea averages 21.8°C, with a year-to-year range of 21°C to 23°C, so it can feel noticeably cool when you first get in. If you like refreshing swims, that may suit you; if you feel the cold easily, plan on shorter dips rather than assuming long, comfortable sessions in the water.
A little perspective
Sicily 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+ |
|---|---|---|---|---|---|---|---|
| January | 14.2°C | 7.5°C | 15.2°C | 5.0 | 75 | 8 | 0% |
| February | 14.6°C | 7.4°C | 14.5°C | 5.7 | 60 | 7 | 0% |
| March | 16.8°C | 8.9°C | 14.6°C | 6.4 | 58 | 8 | 1% |
| April | 19.3°C | 11.4°C | 15.6°C | 7.2 | 45 | 8 | 1% |
| May | 23.8°C | 15.3°C | 18.2°C | 8.9 | 28 | 4 | 32% |
| JuneSelectedbest | 28.5°C | 19.6°C | 21.8°C | 11.4 | 19 | 3 | 88% |
| Julybest | 31.7°C | 22.4°C | 25.0°C | 13.1 | 8 | 2 | 100% |
| Augustbest | 32.0°C | 23.1°C | 26.4°C | 11.7 | 14 | 3 | 100% |
| September | 27.5°C | 20.0°C | 25.2°C | 8.1 | 52 | 7 | 81% |
| October | 23.4°C | 16.6°C | 22.6°C | 5.9 | 71 | 8 | 27% |
| November | 18.9°C | 12.6°C | 19.6°C | 5.0 | 68 | 8 | 0% |
| December | 15.4°C | 9.2°C | 16.8°C | 4.8 | 66 | 8 | 0% |
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.
Tunisia · 28°C by day · sea 22°C
Hammamet
Spain · 28°C by day · sea 22°C
Ibiza
Spain · 28°C by day · sea 22°C
Benidorm
Spain · 28°C by day · sea 21°C
Costa de la Luz
Spain · 28°C by day · sea 22°C
Valencia
A little more detail
Sicily in June FAQs
Plain answers, grounded in the averages.
Is Sicily hot in June?
Sicily is hot in June: the average daytime high is 28.5°C and nights average 19.6°C. About 88% of June days reach 25°C or more.
Can you swim in the sea in Sicily in June?
The sea around Sicily averages 21.8°C in June, which is bracing - fine for a quick dip, cool for long swims. Between 1991 and 2020 it ranged from 21°C to 23°C depending on the year.
How much does it rain in Sicily in June?
Sicily sees about 3 rainy days (1 mm or more) and 19 mm of rain in a typical June. The wettest June between 1991 and 2020 was 2016 (77 mm) and the driest was 2012 (0 mm).
How sunny is Sicily in June?
Sicily gets around 11.4 hours of sunshine a day in June out of 14.6 hours of daylight (estimated from average cloud cover).
How does Sicily compare with the UK in June?
Sicily is on average 8.9°C warmer than London by day in June (28.5°C against 19.6°C).
What is the hottest June on record in Sicily?
Between 1991 and 2020 the hottest June day in Sicily reached 41.7°C on 2019-06-23, and the coldest night dropped to 12.5°C on 2006-06-05.
How much warmer is Sicily than London in June?
Sicily's average daytime high is 28.5°C, compared with 19.6°C in London - a difference of 8.9°C. That is a substantial step up in heat, so pack lighter clothes and allow more shade breaks than you would normally plan at home.
Is rain likely to disrupt a June holiday?
June is generally dry, with about 3 rainy days. Rain is unlikely to dominate your holiday, but a completely dry stay is not guaranteed. Keep a flexible option for wet weather rather than planning every day around uninterrupted sunshine.
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 Catania (Catania (east coast)). Sea temperature from the nearest 5 km sea cell, 2 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