When to Visit Monterey

This is the wettest stretch, with around 89 mm of rain and daytime highs near 15°C (59°F), dipping to about 6°C (43°F) at night. The bay turns dramatic under winter storm light, and gray whale migration is in full swing.

Conditions mirror January: highs around 15°C (59°F), lows near 6°C (43°F), and another 89 mm of rain on average. Days are longer than in January, and a clear spell between storms can be beautiful.

March shows the first real shift. Daytime temperatures nudge to around 15°C (60°F), lows hover near 7°C (45°F), and rainfall eases to roughly 74 mm. Hills glow emerald, wildflowers pop along coastal trails, and clear days carry a snap you will not find in midsummer.

April feels like the switch flips. Rain shrinks to about 28 mm, highs reach 16°C (61°F), and lows settle around 8°C (47°F). On sunny afternoons the bay turns a deep, improbable blue and Monterey finally looks like the brochure.

May is a coin toss. Temperatures rise slightly to highs around 17°C (62°F) and lows near 10°C (50°F), while rainfall drops to about 13 mm. The marine layer grows more reliable, so mornings can be gray while afternoons clear nicely. Spring break crowds are gone, and full summer has not yet landed.

June is when the fog becomes the main character. Highs hit about 18°C (64°F) and lows around 11°C (52°F), yet morning overcast can make those numbers feel like a lie. Rainfall is almost nil, around 3 mm, and once the layer lifts, afternoons can be delightful. Crowds swell around Cannery Row and the aquarium.

July is Monterey's driest month, with essentially no measurable rain and highs of 18°C (65°F) and lows around 12°C (54°F). Peak tourist season means aquarium queues, Cannery Row foot traffic, and tight lodging. The fog pattern persists, gray mornings, clear afternoons. Yet many visitors find the golden evening light and barking sea lions worth the daytime haze.

August is nearly a twin to July in temperature: highs around 19°C (66°F), lows at 12°C (54°F), with the same near-zero rainfall and steady humidity. It is the tail of summer, and crowds thin slightly toward month's end as schools reopen elsewhere.

September is Monterey's finest month. Highs hit 20°C (68°F), the year's warmest. Lows linger near 12°C (54°F). Rainfall barely registers at 3 mm. The marine layer backs off. Afternoons stay clear. Early autumn light is worth timing your trip for.

October eases back. Highs hover around 19°C (66°F). Lows dip to 10°C (50°F). Rainfall inches up to 20 mm. Crowds vanish after the second week. Warm days and crisp nights. Perfect window for coastal trail hikes.

November brings the wet season back. Highs settle at 16°C (62°F). Lows hover near 7°C (46°F). Rainfall jumps to 43 mm. The town empties. Fisherman's Wharf loses its queues. The aquarium feels spacious. Gray whale season restarts.

December is Monterey's coldest stretch. Highs reach 14°C (58°F). Lows drop to 6°C (42°F). Rainfall averages 74 mm, matching March. Holiday visitors spike in the final fortnight. Otherwise the pace is slow. Bayfront dusk feels hushed. Summer crowds miss this calm.