🇺🇸 San Diego vs 🇦🇺 Sydney
Weather Comparison
Current Weather Right Now
🇺🇸
San Diego
67°F
Clear Sky
Feels like 65°F
H 71°F / L 62°F
Humidity: 41%
🇦🇺
Sydney
61°F
Light Rain
Feels like 61°F
H 62°F / L 59°F
Humidity: 89%
Climate Overview
San Diego
San Diego has arguably the best climate of any major US city — mild year-round with average highs around 70°F. The Pacific Ocean moderates temperatures dramatically, and the city rarely sees extremes. June Gloom brings marine layer clouds through the early summer, while Santa Ana winds can push temperatures into the 90s in fall.
Sydney
Humid subtropical — warm summers, mild winters, year-round sunshine
Sydney enjoys one of the world's best climates. Summers are warm with beach weather; winters are mild enough for outdoor activities. The city is split between coastal suburbs (cooled by sea breezes) and inland western suburbs (dramatically hotter in summer).
Seasonal Comparison
| Season | 🇺🇸 San Diego | 🇦🇺 Sydney |
|---|---|---|
| Spring | — | 60–73°F September–November |
| Summer | — | 72–82°F December–February |
| Fall | — | 62–75°F March–May |
| Winter | — | 50–63°F June–August |
San Diego vs Sydney: Frequently Asked Questions
Does San Diego or Sydney have better weather?
San Diego and Sydney have very different climates. San Diego has arguably the best climate of any major US city — mild year-round with average highs ar Sydney: Humid subtropical — warm summers, mild winters, year-round sunshine. The best city depends on your preferred season and temperature range.
When is the best time to visit San Diego vs Sydney?
Best time for San Diego: spring and fall. Best time for Sydney: September, October, November, March, April.