Island Overview
Classic midsummer conditions today across Crete: clear to mainly clear skies from Kissamos in the west to Sitia in the east, zero precipitation, and daytime highs between 28.7°C in Rethymno and 32.3°C along the east coast. A light-to-moderate meltemi keeps the north coast comfortable through the afternoon, while the south coast runs warmer around the clock.
North vs South
The most telling contrast today is in overnight temperatures. On the south coast, Ierapetra holds a minimum of 26.7°C and Makrigialos barely drops below 25.4°C. These towns simply do not cool after dark in July. The north coast is more forgiving: Chania and Heraklion both dip to around 20 to 21°C overnight, offering noticeably better sleeping conditions. By day, Agios Nikolaos and Elounda lead with highs of 32.3°C; Rethymno, the coolest major town, peaks at 28.7°C.
Mountains
No cloud is building over the Lefka Ori or Psiloritis today. Hikers heading into the White Mountains should start before 07:00 and carry at least two litres of water per person. Temperatures above 1,500 m will be significantly lower than coastal readings, but UV exposure remains intense at altitude and should not be underestimated.
Sea State, Wind and UV
Seas are calm to near-flat across the island. The largest swell today is 0.58 m off Sitia; Rethymno records the flattest water at just 0.16 m. All readings are well inside safe limits for swimming, snorkelling and boat trips. Wind is lightest in Rethymno at a maximum of 11.6 km/h and strongest around Agios Nikolaos and Elounda at 23.5 km/h, where the meltemi funnels through the Gulf of Mirabello. Sea surface temperatures sit at 25.3 to 26.4°C, with Rethymno the warmest. UV peaks at 8.6, in the very high band at every station. Unprotected skin can burn in as little as 15 minutes near midday.
Swim Verdict
Green light island-wide. Water is warm, seas are calm and there is no rain in sight. The flattest, most sheltered conditions are around Rethymno and Chania. Those looking for surface breeze for paddleboarding or kitesurfing will find it around Agios Nikolaos and Elounda, where the meltemi is most consistent.
Practical Tip
With UV above 8 across the entire island, the midday window from 11:00 to 16:00 is genuinely damaging. Plan beach time before 11:00 or after 17:00. Use SPF 50+ for any midday exposure, keep children in the shade during peak hours, and treat a hat and sunglasses as non-negotiable for the rest of the day.
