Weather in San Jose in April 2025
- April is usually the hottest month of the year in San Jose;
Average weather
Average temperature in San Jose in April
The expected average maximum temperature in April is +79°F with a maximum of +82°F and a minimum of +61°F.
The average maximum temperature goes up 33% by the end of the month, compared with the beginning of the month, from +75°F to +82°F.
Is San Jose warm or cold in April?
San Jose is typically warm in April.
Maximum temperatures go up compared to the previous month from +79°F to +79°F. The minimum temperature also goes up from +63°F to +63°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
April is the hottest month in San Jose, here is the comparison with other months:
Water temperature in San Jose in April
Water in San Jose in April is Very warm. It varies from +83°F to +87°F, with an average of +85°F. Note that the air temperature is lower than the water temperature, averaging around +79°F.
The water temperature in April is one of the warmest of the entire year:
Can you swim in San Jose in April?
Climate in San Jose in April
| March | April | May | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +79°F | +79°F | +77°F | ||||
| Min. temperature | ||||||
| +55°F | +55°F | +59°F | ||||
| Max. temperature | ||||||
| +88°F | +88°F | +86°F | ||||
| Rainfall | ||||||
| 108 mm | 257 mm | 602 mm | ||||
| Wind | ||||||
| 4 m/s | 3 m/s | 2 m/s | ||||
| Avg. water temperature | ||||||
| +85°F | +85°F | +85°F | ||||
| Humidity | ||||||
| 68% | 72% | 81% | ||||
| Air pressure | ||||||
| 1014 HPa | 1014 HPa | 1014 HPa | ||||
| Sunny days | ||||||
| 2 | 0 | 0 | ||||
| Cloudy days | ||||||
| 0 | 0 | 0 | ||||
| Rainy days | ||||||
| 27 | 24 | 20 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
April weather is still as good as in March. The temperature levels stay the same in the area of +79°F for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 108 mm to 257 mm. Humidity rises from 68% to 72%. Winds are calmer in comparison to March, going down from 4 m/s to 3 m/s on average. The days becoming less sunny, going from 2 sunny days in March to 0 in April.
Next month (May) brings a further decline in the weather.
Wind
The average wind speed is 5 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in San Jose is gradually decreasing during April, going from 7 m/s to 3 m/s over the course of the month.
Rain
How was the weather last April in San Jose?
Climate Change Over the Years
The climate in San Jose in April has not changed that much over the last 43 years.
The average temperature was the lowest in 1999 (+74°F) and the highest in 2013 (+79°F). The driest year was 2023 with only 3365 mm of rainfall, and the wettest year was 1995 with 7044 mm.
FAQ
Is April a good time to visit San Jose?
Can you sunbathe in San Jose in April?
Can you swim in San Jose in April?
Is San Jose rainy in April?
Is it sunny in San Jose in April?
Monthly weather in San Jose
Source of the data
For this page, we’ve looked at the typical weather in San Jose, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.