United States and Canada · United States
Cheap flights to San Francisco
The Golden Gate, cable cars on steep streets, and Napa wine country an hour north.
- Best weather
- Jun to Oct
- Warmest
- Sep, 21°C
- Airport
- SFO
Best time to visit San Francisco
The best time to visit San Francisco for the weather is from June to October, when daytime highs average 19 to 21°C (66 to 70°F) and it's mostly dry.
There's no real wet season: rain is spread through the year, with the most in December (about 12 rainy days) and the least in July.
The warmest month is September, with highs around 21°C (70°F); the coolest is January, at around 14°C (58°F) by day and 8°C (47°F) at night.
San Francisco weather by month
Average daytime highs, overnight lows and rain for each month.
| Month | High | Low | Rain | What it's like |
|---|---|---|---|---|
| January | 14°C 58°F | 8°C 47°F | 11 rainy days | Cool with some rain |
| February | 16°C 60°F | 9°C 48°F | 11 rainy days | Cool with some rain |
| March | 17°C 62°F | 9°C 49°F | 11 rainy days | Cool with some rain |
| April | 17°C 63°F | 10°C 50°F | 7 rainy days | Mild and dry |
| May | 18°C 64°F | 11°C 51°F | 4 rainy days | Mild and dry |
| June Best | 19°C 67°F | 12°C 53°F | 2 rainy days | Mild and dry |
| July Best | 19°C 66°F | 12°C 54°F | 1 rainy day | Mild and dry |
| August Best | 20°C 68°F | 13°C 56°F | 1 rainy day | Mild and dry |
| September Best | 21°C 70°F | 13°C 56°F | 1 rainy day | Mild and dry |
| October Best | 21°C 70°F | 12°C 54°F | 4 rainy days | Mild and dry |
| November | 18°C 64°F | 10°C 51°F | 8 rainy days | Mild and dry |
| December | 14°C 58°F | 8°C 47°F | 12 rainy days | Cool with some rain |
Long-term averages from San Francisco (downtown),. Precipitation, high temperature, low temperature, snow, and snow depth records date from October 1, 1849; June 1, 1874; January 1, 1875; January 1, 1876; and January 1, 1922; respectively.}}, 1991–2020. The weather on your dates will vary.
Flying to San Francisco
Farepop finds fares to San Francisco International Airport (SFO). These are the closest airports Farepop watches in each region, as the crow flies; with stops, the trip is longer.
| From | Closest airports |
|---|---|
| Australia | Brisbane 11,400 km · about 14.5 hours non-stop Sydney 11,900 km · about 15.5 hours non-stop |
| New Zealand | Auckland 10,500 km · about 13.5 hours non-stop Wellington 10,800 km · about 14 hours non-stop |
| United States | Los Angeles 340 mi · about an hour non-stop Seattle 680 mi · about 2 hours non-stop |
| Canada | Vancouver 1,300 km · about 2 hours non-stop Calgary 1,600 km · about 2.5 hours non-stop |
| United Kingdom | Glasgow 5,000 mi · about 10.5 hours non-stop Belfast 5,000 mi · about 10.5 hours non-stop |
| Europe | Dublin 8,200 km · about 10.5 hours non-stop Cork 8,200 km · about 10.5 hours non-stop |
How Farepop finds cheap flights to San Francisco
Compared with the usual price
Every fare is compared with what the same route usually costs for the same trip length and dates. Around busy holidays we use quieter neighbouring months, so a peak price never passes for a saving.
At least 25% below
A deal is at least 25% below the usual price for those dates, and a good fare at least 20%. Full-service airlines selling at budget prices, and travel agents undercutting the airline, are labelled as such.
Checked twice, then again
Fares are checked again on their exact dates before you hear about them, and regularly after. Ones that no longer qualify are withdrawn.
You book direct
Farepop doesn't sell tickets. Tap a deal and book with the airline or travel site; always check the final price, baggage and conditions before you pay.
The full rules are in our savings methodology.
San Francisco: questions
When is the best time to visit San Francisco?
For the weather, from June to October, when daytime highs average around 20°C. These are long-term averages from San Francisco (downtown),. Precipitation, high temperature, low temperature, snow, and snow depth records date from October 1, 1849; June 1, 1874; January 1, 1875; January 1, 1876; and January 1, 1922; respectively.}}, 1991–2020.
Does it rain a lot in San Francisco?
San Francisco has no distinct wet season. December is usually the wettest month, with about 12 rainy days.
Which airport do you fly into for San Francisco?
Farepop finds fares to San Francisco International Airport (SFO).
How can I find cheap flights to San Francisco?
Be flexible with your dates and let the fares come to you. Farepop watches flights from your home airports and alerts you when a trip to San Francisco costs at least 25% less than it usually does for those dates, so you can book before the fare goes.
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