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Best time to visit · California, United States
August – November are the best time to visit San Simeon on the climate data: September scores 89/100, with highs around 64°F (18°C) and 0.2 in (4 mm) of rain. April – July are good shoulder-season months. The toughest months are December – February, mainly because of cloud cover.
Highs run from 53°F to 64°F across the year, and the yearly total is about 15.2 in (387 mm) of rain.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 54°F12°C | 53°F12°C | 55°F13°C | 55°F13°C | 57°F14°C | 60°F16°C | 62°F17°C | 63°F17°C | 64°F18°C | 62°F17°C | 58°F14°C | 54°F12°C |
| Avg low | 46°F8°C | 46°F8°C | 47°F8°C | 47°F8°C | 48°F9°C | 51°F10°C | 53°F12°C | 54°F12°C | 55°F13°C | 53°F12°C | 50°F10°C | 47°F8°C |
| Rain | 2.9 in73 mm | 2.8 in72 mm | 2.2 in57 mm | 1.0 in25 mm | 0.5 in13 mm | 0.2 in5 mm | 0.1 in2 mm | 0.1 in2 mm | 0.2 in4 mm | 0.8 in20 mm | 1.3 in34 mm | 3.1 in80 mm |
| Humidity | 78% | 79% | 80% | 79% | 78% | 77% | 77% | 78% | 75% | 74% | 74% | 77% |
| Cloud | 56% | 59% | 61% | 59% | 62% | 64% | 77% | 75% | 59% | 54% | 50% | 58% |
| Comfort | 69 | 68 | 71 | 75 | 78 | 81 | 80 | 83 | 89 | 88 | 83 | 68 |
Source: NASA POWER (public domain), 2001–2025 monthly averages on a ~50 km satellite and reanalysis grid, so coasts and valleys can differ from what's shown. Temperatures were adjusted from the grid cell's ~84 m (276 ft) to San Simeon's ~452 m (1,483 ft) elevation using the standard lapse rate of 6.5°C per 1,000 m. Precipitation includes snow as melted water; daylight is calculated from latitude. Check a forecast before you go.
The cold peaks here: highs near 54°F (12°C), and nights reach 46°F (8°C). It's the wettest season, with about 8.9 in (225 mm) of rain, 58% of the year's total. Comfort scores bottom out in December – February; the season averages 68/100.
Expect steady highs of 55–57°F (13–14°C). About 3.7 in (95 mm) of rain falls across these months, 25% of the year's total. Lows bottom out around 47°F (8°C). April & May score well without being the very best (season average 75/100).
Temperatures hold fairly even, with highs of 60–63°F (16–17°C). It's the driest season, with only about 0.4 in (9 mm) of rain, 2% of the year's total. Lows bottom out around 51°F (10°C). Comfort peaks here: August ranks with the year's best, and the season averages 81/100.
The warmest stretch of the year, with highs of 58–64°F (14–18°C). About 2.3 in (58 mm) of rain falls across these months, 15% of the year's total. Lows bottom out around 50°F (10°C). September – November are among the best-scoring months (season average 87/100).
By comfort score: 8 Great and 4 Good. Great months: April – November. Tap a month for its own guide.
August – November are the best time to visit San Simeon on the climate data: September scores 89/100, with highs around 64°F (18°C) and 0.2 in (4 mm) of rain. April – July are good shoulder-season months. The toughest months are December – February, mainly because of cloud cover.
December is the wettest month, averaging about 3.1 in (80 mm) of rain. July is the driest, with less than 0.1 in (3 mm). The yearly total is around 15.2 in (387 mm).
February is the coldest, with average lows of 46°F (8°C) and highs of 53°F (12°C). The warmest is September, with average highs of 64°F (18°C).
Not very: summer (June – August) humidity averages 77%, and highs peak around 63°F (17°C), so it rarely feels sticky.
The wettest three-month stretch is December – February, with about 8.9 in (225 mm) of rain combined. The driest stretch is July – September, with about 0.3 in (8 mm).
Poll the group on August – November dates, then plan the days, packing and costs together.
