Weather in San Jose in May 2026
Average weather
Average temperature in San Jose in May
Going from a maximum of +90°F during the day to a minimum of +46°F during the night, the temperature in May averages around +73°F.
The average maximum temperature goes up 29% by the end of the month, compared with the beginning of the month, from +63°F to +75°F.
Is San Jose warm or cold in May?
San Jose is typically warm in May.
Maximum temperatures go up compared to the previous month from +68°F to +73°F. The minimum temperature also goes up from +48°F to +52°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how May is compared to other months in San Jose:
Climate in San Jose in May
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +68°F | +73°F | +79°F | ||||
| Min. temperature | ||||||
| +37°F | +41°F | +43°F | ||||
| Max. temperature | ||||||
| +93°F | +99°F | +104°F | ||||
| Rainfall | ||||||
| 53 mm | 47 mm | 9 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 67% | 65% | 63% | ||||
| Air pressure | ||||||
| 1016 HPa | 1014 HPa | 1013 HPa | ||||
| Sunny days | ||||||
| 7 | 10 | 15 | ||||
| Cloudy days | ||||||
| 14 | 16 | 13 | ||||
| Rainy days | ||||||
| 9 | 5 | 2 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
May weather is still as good as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +68°F to +73°F during the day. As May arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 53 mm to 47 mm. It feels drier, as humidity decreases from 67% to 65%. The average wind speed doesn’t change much during May, staying around 2 m/s. The good news is there are likely to be more sunny days in May, from 7 to 10.
But maybe it is worth considering traveling in June as the weather gets better.
Wind
The average wind speed is 7 m/s getting up to 10 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 May, going from 10 m/s to 8 m/s over the course of the month.
Rain
How was the weather last May in San Jose?
Climate Change Over the Years
The climate in San Jose in May has not changed that much over the last 43 years.
The average temperature was the lowest in 1982 (+67°F) and the highest in 2024 (+75°F). The driest year was 2013 with only 147 mm of rainfall, and the wettest year was 2020 with 4306 mm.
FAQ
Is May a good time to visit San Jose?
Can you sunbathe in San Jose in May?
Is San Jose rainy in May?
Is it sunny in San Jose in May?
Other cities in USA
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.
