Dec · Jan · Feb · Mar
Winter (mild + wetter season): comfortable temperatures, with rain clusters
Avg low 9–12°C / high 18–20°C · Rainy days: 3–7 / ~25–70 mm (year-to-year variation)
- • Rain often comes in bursts rather than steady daily drizzle.
- • Rainy days feel cooler, and evenings can turn noticeably chilly.
- • Even sunny days can feel cool on the coast when wind picks up.
Suggested outfits
- · Light jacket/hoodie + layers
- · Umbrella/light rain option
- · Comfortable walking shoes
A note for travelers
In San Diego winter, rain readiness and an evening layer often matter more than a heavy coat.
Apr · May · Jun
Spring to early summer (clear + marine layer): warm days, cooler coastal mornings
Avg low 12–16°C / high 19–24°C · Rainy days: 0–3 / ~2–20 mm
- • Coastal mornings can be cloudy and cool, clearing later in the day.
- • Sun can warm things quickly once it breaks through.
- • Evenings can still feel one step cooler.
Suggested outfits
- · T-shirts + thin layer for marine layer/evenings
- · Sunglasses/sunscreen
- · Optional light rain layer
A note for travelers
May Gray / June Gloom can make beach hours feel cooler than expected.
Jul · Aug · Sep · Oct
Summer to early fall (dry + comfortable): often warm and dry, with cooler coastal evenings
Avg low 17–20°C / high 22–28°C (hotter inland) · Rainy days: 0–1 / ~0–8 mm
- • Dry air can feel less sticky, but direct sun can feel intense.
- • Inland routes can feel much hotter than beach areas.
- • Evenings near the coast often cool down quickly.
Suggested outfits
- · Breathable summer clothing
- · Hat/sunscreen
- · Thin evening layer (optional)
A note for travelers
A thin layer for coastal evenings can be a high-use item.
Nov
Late fall (cooler evenings): easy daytime weather, cooler after sunset
Avg low 11–14°C / high 19–22°C · Rainy days: 1–3 / ~5–25 mm
- • Many days feel clear and comfortable.
- • Evenings cool down quickly—layers help.
- • If rain arrives, it can feel suddenly cooler.
Suggested outfits
- · Light jacket/hoodie
- · Evening layer
- · Umbrella option (optional)
A note for travelers
If you dress only for midday, late hours can feel underdressed.
