San Jose, CA weather in April
April in San Jose: mild and mostly dry. Highs 69°F, lows 48°F, about 6 days with rain. A great month for outdoor plans.
- Normal high
- 69°F
- Normal low
- 48°F
- Wet days
- 6
- 1.1 in total
- Muggy days
- 0
- dew point 65°F+
How April changes from start to finish
| April 1 | April 30 | |
|---|---|---|
| Normal high | 67°F | 71°F |
| Normal low | 47°F | 50°F |
| Chance of a wet day | 25% | 15% |
| Sunrise / sunset | 6:52 am / 7:29 pm | 6:13 am / 7:55 pm |
| Daylight | 12.6 h | 13.7 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
A typical April day
- 6 am51°Fdew point 46°F
- 9 am57°Fdew point 47°F
- Noon62°Fdew point 47°F
- 3 pm62°Fdew point 46°F
- 6 pm57°Fdew point 46°F
- 9 pm54°Fdew point 46°F
NOAA hourly normals (local standard time) from San Francisco Intl Airport (32 mi away); average wind 12 mph; clear or few clouds in 38% of daytime hours, mostly cloudy or overcast in 42%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F18 of 30
- Hot dayshigh 90°F or more0 of 30
- Muggy daysdaily mean dew point 65°F or more0 of 30
- Wet daysat least 0.01 in of rain or melted snow6 of 30
- Notable rainat least 0.10 in3 of 30
- Freezing nightslow 32°F or below0 of 30
Average days per April, counted from daily records for each year 1991-2020.
Rain in April
Normal precipitation is 1.1 in; a dry April brings about 0.4 in and a wet one about 1.5 in (25th and 75th percentiles). About 1 day brings half an inch or more.
How April varies from year to year
- Warmest April, 1991-20202013: average high 73°F
- Coolest April2003: average high 63°F
- Wettest April2010: 3.0 in
- Driest April2008: 0.03 in
- Highest reading95°F (April 20, 2009)
- Lowest reading36°F (April 9, 1999)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
April compared with March and May
| March | April | May | |
|---|---|---|---|
| Normal high | 66°F | 69°F | 74°F |
| Normal low | 46°F | 48°F | 52°F |
| Wet days | 9 | 6 | 3 |
| Comfortable days | 16 | 18 | 24 |
| Daylight | 12.0 h | 13.2 h | 14.2 h |
Highs change by +3°F from March and +5°F into May.
Nearby alternatives in April
- Warmer: Tracy, CA38 mi · high 75°F · 5 wet days
- Cooler: San Francisco, CA42 mi · high 63°F · 7 wet days
How San Jose ranks in April
- Normal high181st warmest of 378 cities; 43rd of 60 in California
- Wet days92nd driest of 378
- Comfortable days33rd most of 340
Heating and cooling
April has 197 heating degree days and 11 cooling degree days (base 65°F), 7% of the year's total heating and cooling demand.
Questions
How cold is San Jose in April?
The normal high is 69°F and the normal low is 48°F. From 1991 to 2020 the coldest April reading was 36°F (April 9, 1999).
Does it rain a lot in San Jose in April?
About 6 days in April have at least 0.01 in of precipitation, and the normal total is 1.1 in. The wettest April in 1991-2020 was in 2010 (3.0 in); the driest was in 2008 (0.03 in).
Is April a good time to visit San Jose?
April ranks 5th of 12 months on our comfort score for San Jose (76 out of 100). It has about 18 comfortable days. The best month is May.
Where the numbers come from
- Temperature, rain and frost dates: San Jose (USW00023293), 2.1 mi NW of the city center, 51 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: San Jose (USC00047821), 0.8 mi NNW of the city center, 67 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: San Francisco Intl Airport (USW00023234), 32 mi NW of the city center, 8 ft (73 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: N Y. Mineta Sn Jo Intl Apt (724945-23293), 2.1 mi NW of the city center, 49 ft . Hourly observations, 1991-2020.