Weather in San Jose in February

A good month. February works. It is not the peak, but nothing about it fights you. Highs average 16.3 °C, lows 6.1 °C, and rain falls on 9 days — nothing in the month is working against you.

February ranks 10 of 12 — near the bottom of San Jose's year. May is the month that works, and the swing between the two is 34 points, which is a different holiday rather than a slightly better one. Worth keeping in perspective: February is the weakest month of San Jose's year and it is still a perfectly good one. The downside here is small.

Rain on 9 days, 3 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 16.3 °C days and 6.1 °C nights; the spread matters more here than any single number.

What the averages hide

The averages here are honest — no hidden extremes worth planning around. Across the twenty years measured, the hottest February day reached 25.5 °C and the coldest night fell to -2 °C, and the wettest single day dropped 56 mm — roughly 62% of the month's rain in one day.

February is moderately variable: 0 mm in the driest year against 241 mm in the wettest, around an average of 91 mm. Roughly two Februarys in three land near that average, and the third does something else entirely.

Wind is light at 6.5 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 83%, high enough to notice on the warm days without dominating them.

How February sits in the year

Temperatures hold steady either side: 15.4 °C in January, 16.3 here, 18.1 in March. Nothing about the timing within the month matters much.

Daylight in February

10.8 hours of daylight, gaining 1.1 hours across the month. That is between San Jose's extremes of 14.7 and 9.6 hours, so days are long enough not to constrain the plan.

Sea temperature

The sea sits at about 12.5 °C in February — too cold to swim without a wetsuit. The sea peaks at 15.4 °C in September and bottoms out at 12.3 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.

How busy it gets

Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

February in San Jose versus nearby

If San Jose is one option among several, the nearby comparison is worth making. San Francisco is close enough to be a coin toss — within a degree on temperature, the same number of rain days. Napa is close enough to be a coin toss — within a degree on temperature, the same number of rain days.

So: February is a compromise. May is 25 points better and is what San Jose is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in San Jose

See all twelve months in San Jose, or where else to go in February.