Arcata Climate: Weather by Month and Best Time to Visit
Best months for Arcata: July, August, September.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 11°C | 5°C | 219 mm | 15 | – | – | 4.7 |
| February | 11°C | 5°C | 182 mm | 13 | – | – | 5.2 |
| March | 12°C | 6°C | 188 mm | 15 | – | – | 5.1 |
| April | 13°C | 6°C | 112 mm | 12 | – | – | 5.9 |
| May | 15°C | 8°C | 62 mm | 8 | – | – | 6.9 |
| June | 17°C | 10°C | 25 mm | 4 | – | – | 7.7 |
| July | 19°C | 12°C | 3 mm | 1 | – | – | 8.6 |
| August | 20°C | 12°C | 4 mm | 1 | – | – | 8.6 |
| September | 20°C | 11°C | 16 mm | 2 | – | – | 8.4 |
| October | 17°C | 9°C | 80 mm | 6 | – | – | 7.4 |
| November | 13°C | 7°C | 156 mm | 13 | – | – | 5.6 |
| December | 11°C | 5°C | 258 mm | 15 | – | – | 4.4 |