Catalina Island, USA

Set in the Mediterranean basin, Catalina Island (USA) is best understood through its weather data: our 2015–2024 climate record puts its peak at a 100/100 sun score in July, exactly the kind of reliability you want for a sand-and-sea holiday.

August is the heat peak, averaging 23°C highs; February is the cool end, when nights dip to around 12°C. The wet–dry contrast is modest: 19% rain-day odds in March against 1% in July. Note that average highs never reach 24°C in any month — pack for mild weather rather than hot.

The seasonal arc is clear in the data: summer averages 22°C against winter's 17°C, while rain-day odds move from 18% in winter and 11% in spring to 2% in summer and 6% through autumn. Summer wins on the numbers and winter loses them; everything in between is a trade-off between warmth and crowds.

Best months to visit Catalina Island

The best month on record is July — a 100/100 sun score, built on 35% cloud cover and 1% rain-day odds — followed by August and June. In practice you have flexibility — January–December all stay above a 70 sun score. The month to avoid on pure weather odds is February (71/100).

Put against its 109 mediterranean peers in July, it lands in the sunnier half of the group, ahead of 77% of them.

Month-by-month breakdown for Catalina Island → · More destinations for July →

As of the latest refresh, Catalina Island's next 16 days span 15°C to 23°C; 7 days look mostly sunny while one looks likely to be wet — a live sun score of 88/100.