Your June weather guide
HotWeather in Sardinia in June
June is a good time to visit Sardinia if you want hot, mostly dry weather without choosing its warmest months. Average daytime highs reach 27°C, nights drop to around 18°C, and there are about 3 rainy days across the month. That suits a holiday spent largely outdoors, with light clothing by day and a layer for evenings. The catch is the sea: it can still feel bracing rather than comfortably warm.
Long-term climate averages for Olbia (Costa Smeralda), not a forecast · 1991-2020
Sardinia, month by month
Your snapshot
At a glance
The useful details for Olbia (Costa Smeralda).
- Average daytime high
- 26.8°C
- 9 in 10 days stay below 31°C
- Average night-time low
- 18.1°C
- coldest 10% of nights: 15°C or lower
- Compared with London
- +7.2°C
- London averages 19.6°C in June
- Sea temperature
- 20.9°C
- year to year: 20°C to 22°C
- Sunshine per day (est.)
- 11.1h
- 74% of 14.9 h of daylight
- Rainy days (1 mm+)
- 3
- 17 mm over the month
- Humidity
- 65%
- Days over 25°C
- 69%
- 18% over 30°C
- Record high 1991-2020
- 37.8°C
- 2019-06-28
- Record low 1991-2020
- 12.5°C
- 2006-06-01
- Flight from London
- ≈ 2 h 24 min
- 1358 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 Sardinia and ranks 67th of 134 destinations we compare for June - see where else is hot in June. Within Italy it is 3rd of 16 (Italy in June). Against London's average high of 19.6°C in June, Sardinia is 7.2°C warmer by day and 6.8°C warmer at night.
Daytime and night-time in June
The typical June day in Sardinia peaks at 26.8°C, but that is an average: the warmest 10% of days reach 31.1°C or more. About 69% of days top 25°C and 1 in 6 pass 30°C. Nights average 18.1°C; one night in ten drops to 15.3°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest June day here reached 37.8°C (2019-06-28) and the coldest night 12.5°C (2006-06-01).
Rain in June
Dry (3 rainy days or fewer): about 3 days with 1 mm or more, 17 mm in total. Year to year it varies a lot - the wettest June was 1992 with 55 mm, the driest 2012 with 0 mm. Humidity averages 65%.
Sea temperature in June
The sea averages 20.9°C - bracing (18-22°c). Depending on the year it ranges from 19.6°C to 22.0°C. For the warmest sea here, come in August (25.2°C).
Sunshine and daylight
Around 11.1 hours of sunshine a day (estimated from cloud cover), 14.9 hours of daylight: the sun rises about 05:50 and sets about 20:55 local time in mid-June. Average cloud cover is 26%.
Is June a good time to visit Sardinia?
Yes - it is one of the better months: hot days, little rain and long sunny days. The best months for Sardinia on our scoring are July, August, June; months averaging 25°C or more: Jun, Jul, Aug, Sep.
Plan for summer heat, but keep an evening layer
Light summer clothes should do most of the work: 69% of June days reach 25°C, so warmth is more than an occasional bonus. There is a hotter side to the month, though, with 18% of days reaching 30°C. Keep more active plans away from midday if heat bothers you, and leave room for shade and a slower pace. Evenings are a different matter. The average low is 18.1°C, while the coldest nights can fall to 15.3°C or below. A light jumper or jacket is a sensible addition, particularly if you expect to sit outside after dark rather than head indoors.
Mostly dry days, with cooler water
Rain is unlikely to be the main constraint on your plans, with about 3 rainy days in June, although a dry month does not guarantee a rain-free stay. Around 11.1 hours of sunshine within 14.9 hours of daylight give you scope to spend time outdoors without concentrating everything around midday. Pack sunscreen, sunglasses and a hat, rather than treating cloud cover as your sun protection plan. For swimming, set expectations lower than the air temperature might suggest. The sea averages 20.9°C and is classed as bracing. June suits travellers who are happy with a refreshing dip better than those who want to linger in warm water.
A little perspective
Sardinia 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 | 12.9°C | 7.4°C | 13.8°C | 4.4 | 56 | 8 | 0% |
| February | 13.2°C | 7.1°C | 13.3°C | 5.5 | 43 | 8 | 0% |
| March | 15.4°C | 8.8°C | 13.6°C | 6.3 | 56 | 8 | 0% |
| April | 18.0°C | 10.7°C | 14.6°C | 7.1 | 53 | 8 | 0% |
| May | 22.1°C | 14.2°C | 17.3°C | 8.4 | 44 | 6 | 17% |
| JuneSelectedbest | 26.8°C | 18.1°C | 20.9°C | 11.1 | 17 | 3 | 69% |
| Julybest | 30.0°C | 21.0°C | 23.8°C | 12.7 | 7 | 1 | 96% |
| Augustbest | 30.3°C | 21.5°C | 25.2°C | 11.2 | 12 | 2 | 98% |
| September | 25.8°C | 18.6°C | 23.6°C | 7.8 | 37 | 6 | 64% |
| October | 21.9°C | 15.5°C | 20.9°C | 5.7 | 65 | 8 | 16% |
| November | 17.1°C | 11.7°C | 17.9°C | 4.3 | 78 | 10 | 0% |
| December | 13.9°C | 8.8°C | 15.2°C | 4.2 | 62 | 9 | 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.
Spain · 27°C by day · sea 22°C
Majorca
Spain · 28°C by day · sea 21°C
Costa de la Luz
Spain · 27°C by day · sea 22°C
Alicante
Albania · 27°C by day · sea 22°C
Saranda
Spain · 28°C by day · sea 22°C
Benidorm
A little more detail
Sardinia in June FAQs
Plain answers, grounded in the averages.
Is Sardinia hot in June?
Sardinia is hot in June: the average daytime high is 26.8°C and nights average 18.1°C. About 69% of June days reach 25°C or more.
Can you swim in the sea in Sardinia in June?
The sea around Sardinia averages 20.9°C in June, which is bracing - fine for a quick dip, cool for long swims. Between 1991 and 2020 it ranged from 20°C to 22°C depending on the year.
How much does it rain in Sardinia in June?
Sardinia sees about 3 rainy days (1 mm or more) and 17 mm of rain in a typical June. The wettest June between 1991 and 2020 was 1992 (55 mm) and the driest was 2012 (0 mm).
How sunny is Sardinia in June?
Sardinia gets around 11.1 hours of sunshine a day in June out of 14.9 hours of daylight (estimated from average cloud cover).
How does Sardinia compare with the UK in June?
Sardinia is on average 7.2°C warmer than London by day in June (26.8°C against 19.6°C).
What is the hottest June on record in Sardinia?
Between 1991 and 2020 the hottest June day in Sardinia reached 37.8°C on 2019-06-28, and the coldest night dropped to 12.5°C on 2006-06-01.
How much warmer is Sardinia than London in June?
Sardinia's average daytime high is 26.8°C, compared with 19.6°C in London, a difference of 7.2°C. That is a noticeable step up in warmth: pack for hot afternoons, but do not leave your evening layer behind.
Is the sea warm enough for swimming in June?
The sea averages 20.9°C, with a year-to-year range of 20°C to 22°C. That makes it bracing rather than reliably warm. If you dislike a cool entry or want long, leisurely swims, the water may be June's main drawback.
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 Olbia (Olbia (Costa Smeralda)). Sea temperature from the nearest 5 km sea cell, 2.3 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