Will it rain in San Diego in May?

Only about 1 rainy days on average — a packable rain shell is usually enough without a full umbrella.

How should I layer for San Diego in May?

With a daily range of about 61°F–73°F, plan on layers you can add or shed: a base layer, a mid-weight top, and an outer layer for the cool ends of the day.

What to Pack for San Diego in May — 2026 Packing List

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Essentials

If you only pack a few things, pack these.

Light cardigan or zip fleece for morningsEssential
San Diego's May marine layer (June Gloom starting) keeps mornings overcast and 60–65°F until noon — a light cardigan or zip fleece handles the cool morning stretch before the layer burns off and afternoon temperatures reach 73°F.
T-shirts and lightweight breathable topsEssential
San Diego's May afternoons clear to 73°F and full sunshine once the marine layer lifts — breathable cotton or linen tops work for the warm afternoon outdoor time at Balboa Park, Pacific Beach, and La Jolla.
Light jeans, shorts, or casual pantsEssential
May's range in San Diego (61°F mornings, 73°F afternoons) means lighter bottoms work all day — shorts are comfortable in the afternoon while light jeans bridge the slightly cooler morning marine layer.
Comfortable walking shoes or clean sneakersEssential
May is prime season for San Diego's outdoor attractions — mild 73°F afternoons make Balboa Park, the Zoo, and Torrey Pines hikes ideal in cushioned walking shoes without summer heat.
SunglassesEssential
San Diego's May afternoons are increasingly bright as the dry season begins — once the marine layer burns off, UV is direct and strong, making sunglasses essential for outdoor Balboa Park time and beach visits.
SPF 50 sunscreenEssential
Southern California's May UV Index reaches 8–9 in San Diego on clear afternoons — once the June Gloom marine layer lifts, full-strength SPF 50 is appropriate for the intense afternoon sun exposure at outdoor venues.

Clothing

Light cardigan or zip fleece for morningsEssential
San Diego's May marine layer (June Gloom starting) keeps mornings overcast and 60–65°F until noon — a light cardigan or zip fleece handles the cool morning stretch before the layer burns off and afternoon temperatures reach 73°F.
T-shirts and lightweight breathable topsEssential
San Diego's May afternoons clear to 73°F and full sunshine once the marine layer lifts — breathable cotton or linen tops work for the warm afternoon outdoor time at Balboa Park, Pacific Beach, and La Jolla.
Light jeans, shorts, or casual pantsEssential
May's range in San Diego (61°F mornings, 73°F afternoons) means lighter bottoms work all day — shorts are comfortable in the afternoon while light jeans bridge the slightly cooler morning marine layer.
Light summer dress or skirtRecommended
San Diego's May afternoons at 73°F are excellent for dresses — Balboa Park, the Gaslamp Quarter outdoor patios, and the beach communities are all comfortable in light dresses once the marine layer lifts by noon.
Lightweight layer for coastal areasRecommended
La Jolla Cove and Coronado Beach in May are 5–8°F cooler than inland San Diego — a lightweight jacket or overshirt handles the ocean breeze at waterfront locations even on warm afternoons.

Footwear

Comfortable walking shoes or clean sneakersEssential
May is prime season for San Diego's outdoor attractions — mild 73°F afternoons make Balboa Park, the Zoo, and Torrey Pines hikes ideal in cushioned walking shoes without summer heat.
Sandals or flip-flops for beach areasRecommended
San Diego's Pacific Beach, Ocean Beach, and Coronado are active in May — beach sandals or flip-flops handle the sand and waterfront boardwalk areas of these SoCal beach communities.
Trail shoes for Torrey PinesOptional
Torrey Pines State Reserve's coastal trail requires footwear with traction — May's mild temperatures and low precipitation make it the ideal month for the clifftop trail with ocean views.

Accessories

SunglassesEssential
San Diego's May afternoons are increasingly bright as the dry season begins — once the marine layer burns off, UV is direct and strong, making sunglasses essential for outdoor Balboa Park time and beach visits.
SPF 50 sunscreenEssential
Southern California's May UV Index reaches 8–9 in San Diego on clear afternoons — once the June Gloom marine layer lifts, full-strength SPF 50 is appropriate for the intense afternoon sun exposure at outdoor venues.
Reusable water bottleRecommended
San Diego's 73°F May afternoons with increasing outdoor activity make hydration important — a reusable bottle is practical for Balboa Park circuits and the Zoo's full outdoor trail.
Wide-brim hatRecommended
Balboa Park's open pathways and San Diego's May sun offer limited overhead shade once the marine layer clears — a wide-brim hat provides meaningful UV protection during midday outdoor walks.

Local tips for San Diego in May

San Diego's May 'June Gloom' marine layer is the most misunderstood weather pattern — visitors who arrive for a beach day find overcast 63°F skies until noon, then a dramatic clear to warm sunshine by 1 PM; plan beach activities for afternoon.

The Cabrillo National Monument tide pools at Point Loma are best visited in May during low tide cycles — mild temperatures without summer crowds make the rocky coastal walk comfortable, but the ocean wind is consistent so bring a layer.

San Diego's Old Town State Historic Park is an excellent May activity — outdoor but shaded by trees, interesting year-round, and May's mild afternoons make it particularly pleasant for the walking tour before summer heat arrives.

Want the full picture? 12 outfit lookbooks for San Diego in Spring, plus restaurant + day-trip dress codes →

FAQ — San Diego in May

Only about 1 rainy days on average — a packable rain shell is usually enough without a full umbrella.
The Cabrillo National Monument tide pools at Point Loma are best visited in May during low tide cycles — mild temperatures without summer crowds make the rocky coastal walk comfortable, but the ocean wind is consistent so bring a layer. See our full shoe picks for May: full shoe guide →
With a daily range of about 61°F–73°F, plan on layers you can add or shed: a base layer, a mid-weight top, and an outer layer for the cool ends of the day.