What to expect in San Francisco in April
April is a strong choice for San Francisco: 17° / 10°, with manageable crowds at the big attractions and prices close to the yearly average.
San Francisco weather in April
Typical conditions in San Francisco during April, based on long-run climate normals rather than any single year. Treat it as a planning guide, not a forecast.
| Average high | 17°C 63°F |
|---|---|
| Average low | 10°C 50°F |
| Rainfall | Moderate 30/100 |
| Total rainfall | 37 mm1.5 in |
| Rainy days | 7 |
| Sea temperature | 12°C 53°F |
| Daylight | 13 h 10 min |
| How it feels | Mild — layers weather |
Average highs sit around 17°C with lows near 10°C. It is one of the drier months — pack light.
Crowds & demand
Crowd levels are Moderate for San Francisco — manageable crowds at the big attractions.
Prices & value
This month counts as shoulder season: prices close to the yearly average.
What to pack
Layers you can shed: 17°C by day and about 10°C after dark is a two-jacket kind of month.
What it costs
Costs in April sit around the yearly average for San Francisco — neither a bargain nor a squeeze. Booking a few weeks out is usually enough. Compared with the most expensive month of the year, you are looking at roughly 23% less.
Who this month suits
- Travellers who want the most reliable weather
- Anyone travelling on a budget
- People who would rather have space than perfect conditions
Events & what’s on
No major festivals fall in April, so the destination feels like its everyday self.
San Francisco in April compared with nearby months
If your dates are flexible by a few weeks, this is what shifting them actually buys you.
| Month | Temp | Crowds | Price | Score |
|---|---|---|---|---|
| February | 15° / 8° | Low | $ | 60 |
| March | 16° / 9° | Low | $$ | 60 |
| April · This month | 17° / 10° | Moderate | $$ | 60 |
| May | 18° / 11° | Moderate | $$ | 59 |
| June | 19° / 12° | High | $$ | 58 |
These months score higher for San Francisco on the same blend of weather, crowds and price. Same destination, better odds.
Or go somewhere else in April
If the destination is negotiable but the month is not, these places are at their best in April.
Figures are climate normals and modelled estimates — a planning guide, not a forecast. We separate fact, estimate and recommendation. Updated October 2026
