Weather in Barcelona in June

How June compares

June is the 3rd warmest month of the year in Barcelona and ranks 102nd of 134 destinations we compare for June - see where else is hot in June. Within Spain it is 60th of 87 (Spain in June). Against London's average high of 19.6°C in June, Barcelona is 5.0°C warmer by day and 5.9°C warmer at night.

Daytime and night-time in June

The typical June day in Barcelona peaks at 24.6°C, but that is an average: the warmest 10% of days reach 28.3°C or more. Roughly 1 in 2 days top 25°C and 1 in 32 pass 30°C. Nights average 17.2°C; one night in ten drops to 14.2°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest June day here reached 35.6°C (2019-06-28) and the coldest night 11.5°C (1994-06-12).

Rain in June

Some rain (4-8 rainy days): about 6 days with 1 mm or more, 36 mm in total. Year to year it varies a lot - the wettest June was 1992 with 127 mm, the driest 2003 with 4 mm. Humidity averages 74%.

Sea temperature in June

The sea averages 20.7°C - bracing (18-22°c). Depending on the year it ranges from 19.7°C to 21.7°C. For the warmest sea here, come in August (25.5°C).

Sunshine and daylight

Around 8.9 hours of sunshine a day (estimated from cloud cover), 15.0 hours of daylight: the sun rises about 06:17 and sets about 21:26 local time in mid-June. Average cloud cover is 41%.

Is June a good time to visit Barcelona?

Yes - it is one of the better months: warm days, manageable rain and long sunny days. The best months for Barcelona on our scoring are July, June, August; months averaging 25°C or more: Jul, Aug.

Warm enough for summer clothes, rarely very hot

Pack light clothes for the daytime, but leave room for a jumper or light jacket after dark. Barcelona's June high is around 5°C above London's, so the change should feel noticeable without usually being overwhelming. Days reach 25°C about 44% of the time, while 30°C occurs on just 3% of days. That makes June a sensible choice if you like warmth but dislike sustained heat. Midday can still feel hot in direct sunshine, so keep longer walks for when you feel comfortable and take breaks in shade. Cooler nights can fall to 14.2°C or below, making that extra layer useful.

Plenty of daylight, with some rain to work around

June gives you about 8.9 hours of sunshine within 15 hours of daylight, leaving plenty of room to shift outdoor plans around the weather. It is not a reliably dry month: about 6 days have measurable rain. A compact umbrella or light waterproof is sensible, but the overall balance favours spending time outside rather than planning the whole trip around shelter. Keep your schedule flexible so a wet spell does not spoil the day. The long daylight also means you need not squeeze every walk into midday; later outings are an option if the sunshine feels too strong.

The sea is the main compromise

The sea averages 20.7°C in June, which puts it in the bracing category. If you enjoy a refreshing dip, that may be enough, but do not assume warm air means equally warm water. The June sea temperature varies between 20°C and 22°C from year to year, so your tolerance for cooler water matters more than the promise of summer. Bring swimwear, but treat swimming as part of the trip rather than its only purpose. June suits travellers who want warm outdoor days and the option of a dip; it is less convincing if comfortable, lingering swims are your main reason for going.