San Francisco Veður Spá
San Francisco weather: 11°C, clear. Á klukkustund forecast, 14-day outlook, UV, air quality and the best time til visit.
Loftslag in San Francisco month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Mánuður | Avg high | Avg low | Rigningfall | Rating |
|---|---|---|---|---|
| janúar | 15° | 8° | 84 mm | ★★★☆☆ |
| febrúar | 15° | 9° | 141 mm | ★★★☆☆ |
| mars | 18° | 10° | 76 mm | ★★★★☆ |
| apríl | 17° | 10° | 52 mm | ★★★★☆ |
| maí | 19° | 11° | 15 mm | ★★★★★ |
| júní | 19° | 12° | 0 mm | ★★★★★ |
| júlí | 19° | 13° | 2 mm | ★★★★★ |
| ágúst | 20° | 14° | 1 mm | ★★★★★ |
| september | 21° | 14° | 6 mm | ★★★★★ |
| október | 22° | 13° | 14 mm | ★★★★★ |
| nóvember | 17° | 10° | 104 mm | ★★★☆☆ |
| desember | 14° | 9° | 148 mm | ★★★☆☆ |
Loftslag type: Mediterranean. Heimild: Open-Meteo archive (ERA5).
Best time til visit San Francisco
Go in maí, júní, júlí, ágúst, september and október. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: janúar, febrúar and desember - expect the least comfortable mix of heat, cold or rain.
Recent extremes in San Francisco
Háttest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How San Francisco compares með nearby places
Annual averages, and the difference against San Francisco.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| San Francisco County | 0 km | 14°C | about the same | 643 mm |
| Napa | 59 km | 15°C | +1°C warmer | 762 mm |
| Santa Clara County | 62 km | 16°C | +2°C warmer | 554 mm |
| Sacramento | 121 km | 17°C | +3°C warmer | 682 mm |
| Point Lobos State Natural Reserve | 146 km | 14°C | about the same | 577 mm |
What til pack, what til skip
- Layers - the daily swing is 13°C, so mornings feel nothing like afternoons
- If your dates are flexible, avoid janúar, febrúar and desember - historically the least comfortable months here.
Sjá spá fyrir San Francisco eftir tímabili
San Francisco weather - more answers
Explore San Francisco
Every topic we hold for this place, and the same topic for the places around it.
Veður for related places
Frequently asked questions
Where is San Francisco?
San Francisco is a city in California. Its coordinates are 37.7749, -122.4194. It lies in Norður-Ameríka.
What is the weather like in San Francisco núna?
It is currently 11°C (52°F) með clear. Raki is 76% and wind is 2 km/h.
When is the best time til visit San Francisco?
maí, júní, júlí, ágúst, september and október offer the most comfortable conditions in San Francisco, which has a Mediterranean climate. janúar, febrúar and desember are usually the hardest months for outdoor plans.
What time zone is San Francisco in?
San Francisco observes America/Los_Angeles (UTC-07:00). The local time is 12:48 AM.
How many people live in San Francisco?
San Francisco has a population of approximately 810.000.
What is the nearest airport til San Francisco?
The closest airports are San Francisco International Airport (SFO), 17 km away.
What are the top things til do in San Francisco?
Popular options include Alcatraz Island, Golden Gate Bridge, Point Lobos State Natural Reserve, Pinnacles National Park, júlia Pfeiffer Burns State Park and Emerald Bay State Park.
What places are in San Francisco?
San Francisco covers 8 places in this atlas, including Alcatraz Island, Golden Gate Bridge, San Francisco International Airport, Fisherman's Wharf, Mission District and ZIP Code 94102.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-us) - coordinates, hierarchy and facts. |
|---|---|
| Spá and observations | Open-Meteo (ECMWF and national models). |
| Loftgæði and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Loftslag averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Veður Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated október 28, 2026 at 12:48 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
