Alghero weather in June

June in Alghero: hot, dry, with clean air — one of the best months to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Alghero🇮🇹 Italy · Central & Southern Italy · Beach93
  1. 60Jan
  2. 66Feb
  3. 73Mar
  4. 77Apr
  5. 80May
  6. 93Jun
  7. 94Jul
  8. 91Aug
  9. 89Sep
  10. 84Oct
  11. 64Nov
  12. 58Dec

#2 of 12 months in Alghero · #60 of 1413 destinations to visit in June · comfort 93/100 (tier S)

Days
30°C
Nights
16°C
Wet days
3
Sun
13.1 h
Humidity
70%
Daylight
15 h
Alghero, Italy
Photo: Efrem Efre · Pexels

Traveller notes on Alghero in June

June in Alghero is sunny and around 26 to 27C, and the sea is the part people ask about: it has not had time to warm up yet, sitting near 20 to 21C in mid-June, which regulars describe as ideal for cooling off rather than warm. The other June argument is company. July and August here are very crowded, June and September are the months regulars point to instead, and even then they say book accommodation well ahead. At La Pelosa up the coast at Stintino the advice is to arrive before noon or after five. Our row reads warmer on the water than the forum does, 23.4C. The record: 29.8C days that feel like 31C, 16.4C nights, 2.9 precipitation days carrying 21.8mm and 13.1 hours of sun.
SeaHasNotCaughtUp · June · 1 month ago · Read more on Tripadvisor ↗

Other months in Alghero

Regulars are specific this counts as a genuinely good month for exploring without the big crowds, changeable but on the whole sunny and warm, with the very end of the month capable of pushing toward 30C on a peak day. Our row backs that mild, genuinely wet read, 23.8C over 12C nights, with a substantial 61.3mm of rain across 8.5 days and humidity at 75 percent. Regulars are consistent the sea itself stays genuinely cold, only around 18 to 20C at its warmest, cold enough that mostly visitors rather than locals actually get in the water this early. The sea sits at 17.9C. The record: 12.1 hours of sun, an 18.6 kph wind and AQI 47.
ChangeableButWarmSeaStaysCold · May · 1 month ago · Read more on Tripadvisor ↗
Regulars describe this as almost certainly very warm but not hot, with the sea at its warmest point of the year and crowds already gone even though shops and restaurants stay open. Our row backs that mild, comfortable read, 24.5C reading as 25C over 13.2C nights, with 60.2mm of rain across 8.5 days - a chance of rain regulars call genuinely real, describing the month overall as unpredictable rather than reliably dry. Evenings do call for a jacket even on a day that felt warm by the water. The sea holds a comfortable 23C, still good for swimming or sunbathing according to regulars. The record: humidity 76 percent, 9.3 hours of sun, an 18.9 kph wind and AQI 41.
VeryWarmNotHotShopsStillOpen · October · 1 month ago · Read more on Tripadvisor ↗
Regulars trade a small risk for a large gain and say so plainly: September carries more chance of a cloudy or wet day than July or August, and in exchange the beaches are close to deserted and everything else is easier to get. The water, they argue, is actually at its best now and stays warm enough to swim until the end of the month - our row has it at 23.8C. Their one caveat is wind, which our 18.8 kph average supports. Days at 28.4C over 16.6C nights make for the evening chill they mention: warm in the sun, a jacket after dark. Rain is the smaller half of the bargain at 58.9mm across 5.9 days. The record: humidity 72 percent, 10.6 hours of sun and AQI 48.
TheWaterIsAtItsBestNow · September · 1 month ago · Read more on Tripadvisor ↗
August in Sardinia is when mainland Italy arrives, and from mid-month regulars describe Alghero as jammed: hotel prices at a premium, long waits for a table, packed sand, and weekends worst of all. Our row's 32.4C reading as 34C with 20.1mm across 3.9 precipitation days is the easy half. On wind they give geography rather than a forecast - the maestrale does not blast the whole north coast, and Alghero's big enclosed bay is one of the sheltered spots, as are the lee-side beaches around Stintino. Their rule for space is simple: anything you have to drive to beats anything you can walk to, so Porto Ferro, Mugoni or La Speranza. The record: 19C nights, humidity 68 percent, 12.5 hours of sun and a 23.9C sea.
TheBayIsTheShelter · August · 1 month ago · Read more on Tripadvisor ↗

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Alghero climate normals — June

Daytime high30°C / 86°F🥵 hot
Nighttime low16°C / 62°F
Feels like (high)31°C / 88°F
Sea temperature23°C / 74°F🙂 pleasant
Rainfall22 mm / 0.9 in☀️ dry
Rainy days3 days
Humidity70%💧 humid
Dew point17°C / 62°F
Sunshine13.1 h/day
Daylight15 h
Wind18 km/h / 11 mph
Air quality (US AQI)50🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Alghero in June

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

BusySummer holidays in Italy, school holidays in 3 of the markets that fill it(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Alghero's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Best weatherAlghero's weather peaks June–August, best around July.

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Best weatherFair weatherToughest weather

What's on in Alghero in June

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Hazard

    Sardinian fire season

    1 Jun – 15 OctSmoke season

    The regional fire campaign runs all summer and the worst days are the ones when the maestrale is up. Scrub roads and some coastal paths shut at short notice. Source ↗

  • Season

    Sea warm enough to swim

    20 Jun – 5 Oct · usually

    The bay holds its heat into early October, and the beaches north towards Fertilia are usable a fortnight after the Italian season has officially ended.

What's on around the world in June →

Nearby, and something's on

Within 300 km of Alghero — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Alghero?

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Alghero in June — FAQ

Is June a good time to visit Alghero?
June in Alghero: hot, dry, with clean air — one of the best months to visit. It ranks #2 of 12 months for Alghero on SeasonMap's comfort score (93/100).
What is the weather like in Alghero in June?
In June, Alghero averages a daily high of 29.8°C and a low of 16.4°C, with about 21.8 mm of rain over roughly 2.9 rainy days.
What is the air quality in Alghero in June?
Alghero has a mean US Air Quality Index of about 50 in June.

Within 300 km: Bonifacio's Lavezzi boat season around 15 Apr – 31 Oct, and Ajaccio's Saint-Erasme, the fishermen's feast around 30 May – 2 Jun.