Temperature
Pleasant by day, brisk at night.
Arroyo Grande is usually most comfortable in May, June, October, and November. Typical daytime highs range from 61–72°F across the year. Most months see little rain.

Pleasant by day, brisk at night.
A few rainy days. About 4 wet days, more than in most months.
Plenty of sun this month.
In November, afternoons feel about 59° and nights feel near 49°.
Mostly clear skies this month.
Calm winds are typical in November.
November late afternoons are around 63°F, easing to about 59°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 61 | 49 | 3.8 | 7 | 8.5 | 75 |
| Feb | 61 | 50 | 3.6 | 8 | 9.2 | 75 |
| Mar | 62 | 51 | 2.8 | 7 | 10.7 | 75 |
| Apr | 64 | 52 | 1.1 | 3 | 12.0 | 74 |
| May | 65 | 55 | 0.4 | 2 | 13.5 | 75 |
| Jun | 68 | 58 | 0.1 | 0 | 13.9 | 76 |
| Jul | 71 | 60 | 0.0 | 0 | 13.8 | 78 |
| Aug | 72 | 61 | 0.0 | 0 | 12.9 | 78 |
| Sep | 72 | 61 | 0.0 | 0 | 11.9 | 76 |
| Oct | 70 | 58 | 0.7 | 2 | 10.7 | 72 |
| Nov | 66 | 53 | 1.4 | 4 | 9.4 | 72 |
| Dec | 61 | 49 | 2.8 | 6 | 8.5 | 73 |
Similar climates
Want a side-by-side climate view? Compare Arroyo Grande with New York City.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 27, 2026
Data & methodology