Island Overview
A classic late-summer day settles over Crete on 21 August 2026. All ten monitoring stations report clear skies and zero precipitation, with temperatures ranging from a mild 19.5°C overnight in Heraklion to a peak of 32.4°C this afternoon in Makrigialos. The island is firmly in high-summer mode: hot, dry, and sunny from coast to coast.
North Coast vs South and East
The north coast runs slightly cooler thanks to the meltemi, the seasonal northerly wind that pushes through the Aegean each summer. Heraklion reaches 31.4°C with gusts peaking at 17.7 km/h, Chania tops out at 30.3°C, and Rethymno at 29.7°C. These are comfortable beach temperatures, with the breeze taking the edge off the afternoon heat.
The south and east coast tell a warmer story. Makrigialos hits 32.4°C, Elounda 32.2°C, and Agios Nikolaos 32.1°C. Overnight minimums in the south stay high: Ierapetra will not drop below 25.8°C, and Makrigialos holds at 25.4°C. Visitors staying on the south coast should plan for warm nights with little natural cooling.
Mountain Conditions
The White Mountains above Chania and the Psiloritis range in central Crete are clear today. Temperatures drop significantly with altitude, making morning hikes through the Samaria Gorge or along the E4 trail comfortable before midday heat builds at lower elevations. Carry water regardless: the sun is strong even at altitude.
Sea, Wind, and UV
Sea temperatures are at their annual peak. Heraklion records 27.1°C, with most other stations sitting between 26°C and 27°C and Sitia at 25.9°C. Wave heights are minimal island-wide, peaking at 0.58m off Hersonissos and Malia. The meltemi remains light today, with the strongest gusts at Heraklion (17.7 km/h) and Sitia (14.2 km/h). Open-water swimmers, kayakers, and boat day-trips will find conditions benign.
UV index readings sit between 7.75 and 8.0 across all stations, placing today in the high category. Exposure peaks between 11:00 and 15:00 local time.
Swim Verdict
Excellent conditions island-wide. Warm, calm water at every monitored point, no forecast rain, and no significant swell. Any beach on Crete is suitable today, including exposed north-coast beaches that can be choppy when the meltemi strengthens later in the season.
Practical Tip for the Day
Apply SPF 30 or higher before leaving your accommodation and reapply after every swim. With UV peaking around 13:00, a short break in the shade or indoors between noon and 15:00 is the simplest way to avoid overexposure, particularly for children and fair-skinned visitors.
