September and October. Warm temperatures (highs 74-77°F) without the peak-summer crowds and high accommodation prices. Marine fog has cleared, ocean is at its warmest (67-69°F), and daylight remains generous. The La Jolla Art and Wine Festival (October) and the tail end of the Rough Water Swim season add cultural draws. Lower hotel rates than July-August
| Month | High (°F) | Low (°F) | Notes |
|---|---|---|---|
| Jan | 64 | 48 | mild & mostly dry |
| Feb | 64 | 48 | mild & mostly dry |
| Mar | 65 | 51 | mild & mostly dry |
| Apr | 68 | 54 | mild & sunny |
| May | 69 | 57 | mild & sunny |
| Jun | 72 | 60 | warm & sunny |
| Jul | 77 | 64 | warm & sunny |
| Aug | 78 | 65 | warm & sunny |
| Sep | 78 | 64 | warm & sunny |
| Oct | 74 | 59 | warm & sunny |
| Nov | 70 | 54 | mild & sunny |
| Dec | 64 | 49 | mild & mostly dry |