Climate pair · calibrated grid · 1991–2020

Seattle, WA vs San Diego, CA: Climate Compared Month by Month

San Diego, CA gets 3,046 calibrated sunshine hours a year — 36% more than Seattle, WA's 2,233. Temperature and rainfall below, month by month.

Load this pair in the live tool → Pin both on the Map →

Seattle, WA — sunshine

2,233 hr

per year, calibrated

San Diego, CA — sunshine

3,046 hr

per year, calibrated

Annual rainfall

1,088 vs 258

mm/yr — Seattle, WA vs San Diego, CA

Month by month

Seattle, WA vs San Diego, CA: temperature and rainfall

Month	Seattle, WA °C	San Diego, CA °C	Seattle, WA mm	San Diego, CA mm
January	5.7	13.8	152	45
February	6.2	14.0	103	53
March	7.9	14.5	107	46
April	9.8	15.6	72	20
May	12.6	16.5	62	4
June	15.3	17.8	49	2
July	17.9	19.9	21	1
August	18.1	20.8	23	1
September	15.5	20.6	46	4
October	11.3	18.9	108	13
November	7.7	16.3	175	29
December	5.1	13.8	170	40

Seattle, WA peaks in August at 18.1°C against San Diego, CA's August peak of 20.8°C; in January the gap is 5.7°C vs 13.8°C. On water, Seattle, WA takes 1,088 mm a year against 258 mm — the table above shows where in the calendar that rain actually lands, which matters more than the annual total for day-to-day life.

FAQ

Frequently asked questions

Is Seattle, WA sunnier than San Diego, CA?

San Diego, CA is sunnier: 3,046 calibrated sunshine hours a year vs 2,233 in Seattle, WA — 36% more.

Which is warmer, Seattle, WA or San Diego, CA?

In January, Seattle, WA averages 5.7°C vs 13.8°C in San Diego, CA. In July, 17.9°C vs 19.9°C. Warmest months: August (18.1°C) and August (20.8°C).

Which is wetter?

Seattle, WA gets more rain: 1,088 mm/yr vs 258 mm/yr (0.05° calibrated grid).

More climate pairs

People also compare

Lisbon vs London → Valencia vs Manchester → Miami, FL vs Phoenix, AZ → Paphos vs Valletta → Dubai vs Singapore → Bangkok vs Chiang Mai → Athens vs Barcelona → Austin, TX vs Lisbon → London vs Alicante → Berlin vs Valencia → New York, NY vs Mexico City →

Climate is one layer. See all seven.

Pin Seattle, WA and San Diego, CA — sunshine, temperature, rain, cost, tax, safety, and air on one map.

Open the Map → Adjust this comparison →

About the data: GeoRank is built by a small team that thinks moving abroad shouldn't be guesswork. Every figure on this page is computed from the same public dataset that powers the interactive tools (cities-tools.json, CC-BY-4.0), with accuracy bands stated instead of false precision. See the methodology for source-by-source detail.

Sources: ERA5 (Copernicus Climate Data Store) · 56 WMO/KNMI reference stations · CHELSA/ERA5 0.05° climate grid 1991–2020 · GeoRank cities-tools dataset (CC-BY-4.0). Methodology and accuracy bounds at methodology.