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Clear sky

San Diego

USA

23.8°C

Avg 9.3 hrs sunshine/day

Sea temperature: 22.9°C

We Say

San Diego's golden rays embrace you year-round, transforming every moment into pure liquid sunshine and endless blue horizons. Pack light, leave your worries behind, and surrender to the kind of warmth that makes you never want to leave.

Live forecast temporarily unavailable.

Showing historical averages for this time of year while we reconnect to the weather service.

16-Day Forecast

Today

4 Sept

Clear sky

~23.8°C

Daytime High

22.9°C sea

~17.6°C

Overnight Low

☀☀☀☀☀

9.3h sun

hist. avg

Sat

5 Sept

Clear sky

~23.8°C

Daytime High

23°C sea

~17.6°C

Overnight Low

☀☀☀☀☀

9.3h sun

hist. avg

Sun

6 Sept

Clear sky

~23.8°C

Daytime High

22.8°C sea

~17.6°C

Overnight Low

☀☀☀☀☀

9.3h sun

hist. avg

Mon

7 Sept

Clear sky

~23.8°C

Daytime High

22.8°C sea

~17.6°C

Overnight Low

☀☀☀☀☀

9.3h sun

hist. avg

Tue

8 Sept

Clear sky

~23.8°C

Daytime High

22.8°C sea

~17.6°C

Overnight Low

☀☀☀☀☀

9.3h sun

hist. avg

Wed

9 Sept

Clear sky

~23.8°C

Daytime High

22.9°C sea

~17.6°C

Overnight Low

☀☀☀☀☀

9.3h sun

hist. avg

Thu

10 Sept

Clear sky

~23.8°C

Daytime High

23.1°C sea

~17.6°C

Overnight Low

☀☀☀☀☀

9.3h sun

hist. avg

Fri

11 Sept

Clear sky

~23.8°C

Daytime High

23.2°C sea

~17.6°C

Overnight Low

☀☀☀☀☀

9.3h sun

hist. avg

Sat

12 Sept

Clear sky

~23.8°C

Daytime High

~21.2°C sea

~17.6°C

Overnight Low

☀☀☀☀☀

9.3h sun

hist. avg

Sun

13 Sept

Clear sky

~23.8°C

Daytime High

~21.2°C sea

~17.6°C

Overnight Low

☀☀☀☀☀

9.3h sun

hist. avg

Mon

14 Sept

Clear sky

~23.8°C

Daytime High

~21.2°C sea

~17.6°C

Overnight Low

☀☀☀☀☀

9.3h sun

hist. avg

Tue

15 Sept

Clear sky

~23.8°C

Daytime High

~21.2°C sea

~17.6°C

Overnight Low

☀☀☀☀☀

9.3h sun

hist. avg

Wed

16 Sept

Clear sky

~23.8°C

Daytime High

~21.2°C sea

~17.6°C

Overnight Low

☀☀☀☀☀

9.3h sun

hist. avg

Thu

17 Sept

Clear sky

~23.8°C

Daytime High

~21.2°C sea

~17.6°C

Overnight Low

☀☀☀☀☀

9.3h sun

hist. avg

Fri

18 Sept

Clear sky

~23.8°C

Daytime High

~21.2°C sea

~17.6°C

Overnight Low

☀☀☀☀☀

9.3h sun

hist. avg

Sat

19 Sept

Clear sky

~23.8°C

Daytime High

~21.2°C sea

~17.6°C

Overnight Low

☀☀☀☀☀

9.3h sun

hist. avg

Sun

20 Sept

Clear sky

~23.8°C

Daytime High

~21.2°C sea

~17.6°C

Overnight Low

☀☀☀☀☀

9.3h sun

hist. avg

☀ = sunshine score · °C high / low · hours of sunshine shown below

About San Diego

San Diego in the USA is widely regarded as one of North America's premier sunshine destinations, boasting a Mediterranean-like climate that rivals the French Riviera in terms of consistent warmth and clear skies. This Southern California gem attracts everyone from families seeking safe beaches and world-class attractions to couples looking for romantic seaside escapes and adventure seekers eager to explore coastal trails and water sports. With over 260 days of sunshine annually and year-round outdoor activities, San Diego offers the kind of perpetual mild weather that keeps visitors returning season after season.

The climate in San Diego, USA is characterised by warm, dry summers and mild winters that rarely dip below freezing. Average summer temperatures reach around 25°C during peak season, while winter months average a pleasant 18°C, meaning you can comfortably explore the city regardless of when you visit. The Pacific Ocean plays a moderating role, preventing extreme temperature swings, with sea temperatures peaking around 22°C in late summer and early autumn. This year-round temperate weather is comparable to the Canary Islands, offering consistently pleasant conditions without the scorching heat of inland deserts or the unpredictable weather of northern regions.

The best time to visit San Diego falls between May and September, when warm temperatures, minimal rainfall, and maximum sunshine create ideal holiday conditions. However, the shoulder months of April and October remain excellent choices for those preferring slightly cooler temperatures and smaller crowds. Even winter months from December through February see plenty of sunshine and comfortable daytime temperatures perfect for beach walks and outdoor dining, making San Diego genuinely a year-round destination.

Holidays in San Diego offer remarkable diversity. Families flock to attractions like Balboa Park with its museums and gardens, the San Diego Zoo, and pristine beaches such as Pacific Beach and Mission Beach. The Gaslamp Quarter provides vibrant dining and nightlife, while the coastal towns of La Jolla offer dramatic cliffs and excellent snorkelling opportunities. Food enthusiasts celebrate the city's exceptional taco culture and fresh seafood restaurants, while surfers and kayakers find endless opportunities along the 70-mile coastline.

Reaching San Diego is straightforward with direct flights from Germany, the Netherlands, the United States, and Canada. Visitors from the United Kingdom, Ireland, France, and other European nations including Spain, Italy, and Scandinavia can easily connect through major hubs. International travellers from Singapore, Australia, New Zealand, South Africa, and the UAE also benefit from reliable one-stop connections, making San Diego accessible for global holidaymakers planning their perfect sunny escape.