Measured, not vibes
Best Time to Visit Catalina Island
By measured weather comfort, the top months for Catalina Island are October, May, September — and RouteVerdict's editorial pick, which also weighs crowds and prices, is April, May, June, July, August, September, October. The table below is computed from ERA5 reanalysis data for 2020–2024, measured at Woodridge (Catalina Island) (45 m elevation).
Month by month
Catalina Island weather and comfort, 2020–2024
| Month | Avg high | Wet days | Comfort | Season |
|---|---|---|---|---|
| January | 7.6°C / 46°F | 8.7 | 19 | |
| February | 10°C / 50°F | 8.3 | 29 | |
| March | 14.9°C / 59°F | 8.3 | 56 | Shoulder |
| April | 19.3°C / 67°F | 9.2 | 75 | |
| May | 23.3°C / 74°F | 10.2 | 80 | Best |
| June | 29.3°C / 85°F | 9.7 | 63 | |
| July | 32°C / 90°F | 12.5 | 46 | |
| August | 29.8°C / 86°F | 13.7 | 55 | |
| September | 25.9°C / 79°F | 10.2 | 76 | Best |
| October | 20.7°C / 69°F | 7.7 | 82 | Best |
| November | 14.7°C / 58°F | 6.5 | 57 | Shoulder |
| December | 9.6°C / 49°F | 7.3 | 28 |
Comfort is RouteVerdict's 0–100 score: 100·exp(−(high−23)²/162) × (1 − min(0.35, wet days × 0.02)). The full method is on the methodology page. Weather data by Open-Meteo.com (ERA5, CC BY 4.0), 2020–2024 normals. Wet day = ≥1 mm precipitation.
FAQ
Catalina Island timing questions
What is the best month to visit Catalina Island?
By measured weather comfort (ERA5 2020–2024), the top months are October, May, and September, with October scoring highest. RouteVerdict's editorial pick is April, May, June, July, August, September, and October, which also weighs crowds, prices, and events.
What is the hottest month in Catalina Island?
July, with an average daily high of 32°C (90°F).
What is the rainiest month in Catalina Island?
August, averaging 13.7 days with at least 1 mm of precipitation.
When is shoulder season in Catalina Island?
November and March — the best-scoring months outside both the measured top three and RouteVerdict's editorial peak-season pick.