San José Weather in January
January in San José sees daytime temperatures around 30°C (86°F) and lows of 19°C (66°F) at night.
Pack a rain jacket because some rainfall is likely.
Rainfall in San José in January
Rain is expected on roughly
11 days, totalling around
41 mm (1.6 in) for the month.
Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in San José in January
January in San José sees highs of
30°C (86°F) and lows of
19°C (66°F) overnight.
This kind of day-to-night contrast is typical for this time of year.
With overnight lows of
19°C (66°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
If you prefer dry days with pleasant temperatures, February typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
perfect weather
pleasant
tolerable
unpleasant
poor
Avg daytime high
-5°C (23°F) cold → 32°C (90°F) hot
Monthly precipitation
0 mm (0 in) dry → 150 mm (5.9 in) wet
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Marker color shows the average daytime high temperature in January: blue is cold, red is hot.
Marker color shows total monthly precipitation in January: pale blue is dry, deep blue is wet.