Climate · Americas
San Diego climate, year-round
United States · Mediterranean (coastal) · Updated May 2026
Best months
Mar · Apr · May · Oct · Nov
Best for: Climate-purist nomads who want the most consistent year-round US weather.
Year at a glance
Cells coloured by typical daytime average temperature. ★ = best months for nomads.
Jan
15°C
67%
2mm
Feb
15°C
68%
2mm
Mar
16°C
68%
2mm
Apr
17°C
68%
1mm
May
18°C
72%
0mm
Jun
20°C
73%
0mm
Jul
22°C
74%
0mm
Aug
23°C
74%
0mm
Sep
22°C
73%
0mm
Oct
20°C
70%
1mm
Nov
17°C
67%
1mm
Dec
15°C
65%
1mm
Summer peak
23°C
August · 74% humidity
Winter low
15°C
January · 67% humidity
Climate type
Mediterranean (coastal)
Moderate summers, Moderate winters
Field notes
The flattest temperature curve of any major US city — month-to-month spread is roughly 8°C top to bottom. Marine layer ('May Gray', 'June Gloom') is the local seasonal complaint; clears by midday in summer. Almost no rain — the wet season barely qualifies. Fire smoke from inland counties is the recurring risk window (Sept–Nov).
Visa for nomads
Low nomad-friendlyPathway
Extendable tourist
Program
—
Typical max stay
6 months
ESTA Visa Waiver (90 days) for most western passports, no extensions in-country; B-2 visitor visa up to 6 months. No US digital-nomad visa exists. Long-term residence requires H-1B / O-1 / EB green-card paths.
Editorial summary, not legal advice. Verify with the relevant consulate before applying — visa programs change with little notice.
Cost of living in San Diego: ~$3,840/mo
Mid-tier monthly across rent, food, transport, utilities, and coworking.
Cities with a similar climate
Editorial estimates aggregated from public climatological summaries — typical monthly averages, not forecasts. Treat as order-of-magnitude. Microclimate, altitude, and recent extreme weather can swing these values significantly.