Best time to go

San Jose (California) in August 2027: weather, temperatures and activities

Do you want to visit San Jose in August 2027? Discover the usual weather at this time of year, average temperatures, the risk of rain, possible activities, and our opinion on whether August is a good month to travel to San Jose, California.

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Is it worth visiting San Jose in August?

Check your ideal travel criteria and see if the month of August suits your plans to go to San Jose.
What matters most?
San Jose in August 2027: weather, temperatures and activities

Page summary

San Jose in August in summary
Ideal weather
Min 19°C Max 29°C 2 mm 0 day(s) 69% 6% UV 6 13.5 h/day
Best activities in August
Cultural visits and heritageFamily and attractionsNightlifeGastronomy
Practical guidelines
Very large crowds Moderate prices 05:24 18:59
Hourly weather

Average weather in San Jose in August 2027

Ideal weather

The weather in San Jose in August 2027 is based on statistical data from previous years in August. This allows you to forecast the weather in August 2027. Check the hourly statistics (6:00, 9:00, 12:00, 15:00, 18:00, 21:00, 0:00 and 3:00), with the associated average temperature, for the whole month, and also, by navigating the tabs, for the beginning, middle and end of the month.

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Climate

Climate of San Jose in August

Temperatures, precipitation and monthly trends help to better understand the climate in San Jose in August.

Temperatures and rain in San Jose in August

Average daily weather

Temperatures and rain day by day in August.
Minimal Average Maximums Average rainfall

Monthly temperatures

The month of August is highlighted to compare it quickly with the rest of the year.
Minimal Average Maximums

Monthly precipitation

The bar for the month under study is highlighted.
Average rainfall

About the climate in San Jose in August

Seasonal normals

Seasonal normals of San Jose in August

Check the seasonal normals in San Jose in August and compare the weather with the previous month and the following month (or the months of your choice by selecting months in the form below): temperatures, wind, rain, humidity, climate rating...

Last updated: 12/01/2026
Reference period for normals: January 2009 - December 2025
Month analyzed
August
Weather data July August September
Outside temperature
Average temperature 24.0°C 23.9°C 23.0°C
Maximum temperature 29.0°C 29.0°C 28.4°C
Minimum temperature 19.0°C 18.8°C 17.7°C
Record maximum temperature 39.0°C
(2021)
40.0°C
(2017)
44.0°C
(2017)
Record low temperature 10.0°C
(2012)
13.0°C
(2010)
8.0°C
(2021)
Number of days at +30° 14 day(s)
(45%)
13 day(s)
(42%)
12 day(s)
(40%)
Number of days at +18° 31 day(s)
(100%)
31 day(s)
(100%)
30 day(s)
(100%)
Number of days below 0° 0 day(s)
(0%)
0 day(s)
(0%)
0 day(s)
(0%)
Wind
Wind speed 14 km/h 13 km/h 13 km/h
Wind temperature 19.1°C 18.8°C 17.8°C
Precipitation (rain)
Precipitation 2.0 mm 1.6 mm 5.1 mm
Number of days with precipitation 2 day(s)
(6%)
1 day(s)
(3%)
2 day(s)
(7%)
Number of days with significant precipitation (greater than 5 mm) 0 day(s)
(0%)
0 day(s)
(0%)
0 day(s)
(1%)
Record precipitation in one day 2.5 mm
(2013)
4.5 mm
(2017)
12.2 mm
(2017)
Other weather data
Humidity 66% 69% 68%
Visibility 9.7 km 9.7 km 9.7 km
Cloud cover 5% 6% 8%
UV index 6 6 6
Daily sunshine 14h 13h 12h
Sunrise and sunset
Sunrise time 04h59 05h24 05h50
Sunset time 19h28 18h59 18h14
Day length 14h29 13h35 12h24
Our opinion on the climate in August
The review of Where And When ideal weather ideal weather ideal weather
Activities and events

What to do in San Jose in August?

Best activities in August
Cultural visits and heritageFamily and attractionsNightlifeGastronomy
Possible activities in August
Hiking and trekkingNature and landscapes
Observed weather

What was the weather like in San Jose in August last?

Find the observed weather calendar in San Jose in August 2025, with each day’s weather, temperatures and precipitation.

Mon. Tue. Wed. Thu. Fri. Sat. Sun.
1
Clear/Sunny
15°C26°C0.0 mm
2
Clear/Sunny
14°C27°C0.0 mm
3
Partly Cloudy
13°C23°C0.0 mm
4
Cloudy
12°C21°C1.2 mm
5
Cloudy
12°C21°C0.0 mm
6
Clear/Sunny
13°C28°C0.0 mm
7
Cloudy
15°C26°C0.0 mm
8
Clear/Sunny
17°C34°C0.0 mm
9
Clear/Sunny
19°C35°C0.0 mm
10
Clear/Sunny
20°C34°C0.0 mm
11
Clear/Sunny
19°C33°C0.0 mm
12
Clear/Sunny
15°C32°C0.0 mm
13
Partly Cloudy
16°C27°C0.0 mm
14
Clear/Sunny
16°C29°C0.0 mm
15
Clear/Sunny
15°C28°C0.0 mm
16
Overcast
17°C24°C3.7 mm
17
Cloudy
16°C19°C0.0 mm
18
Clear/Sunny
14°C26°C0.0 mm
19
Cloudy
13°C21°C0.0 mm
20
Clear/Sunny
15°C32°C0.0 mm
21
Clear/Sunny
17°C31°C0.0 mm
22
Clear/Sunny
16°C32°C0.0 mm
23
Partly Cloudy
18°C33°C0.0 mm
24
Clear/Sunny
16°C31°C0.0 mm
25
Clear/Sunny
18°C34°C0.0 mm
26
Clear/Sunny
19°C34°C0.0 mm
27
Clear/Sunny
15°C30°C0.0 mm
28
Clear/Sunny
14°C28°C0.0 mm
29
Clear/Sunny
16°C29°C0.0 mm
30
Clear/Sunny
16°C34°C0.0 mm
31
Clear/Sunny
17°C31°C0.0 mm
Nearby

Where to go near San Jose in August?

Compare cities and destinations near San Jose in August to find another travel stop, a nearby alternative or a logical continuation of your stay in San Jose.

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Every month

Best time to visit San Jose month by month

Compare the weather in San Jose across all months of the year and open each detailed page to find the best time.

Frequently asked questions

Travel to to San Jose in August: your frequently asked questions

Short answers to the questions we ask ourselves before booking for this month.

Yes, this is one of the best times. The weather conditions are ideal in San Jose in August, which places this month 4th out of 12. Expect, however, more crowds and higher prices.

Expect an average of 29°C during the day and 19°C at night, with about 2 mm of precipitation spread over 0 rainy days.

Expect about 13.5 hours of sunshine per day on average for this month.

This month is particularly suited to these activities: Cultural visits and heritage, Family and attractions, Nightlife and Gastronomy. These are the ones for which the conditions on site are most favourable.

Yes: this month is in Very large crowds, with a visitor index of 78/100. Book your accommodation and transportation well in advance.

Prices are average: level Moderate prices, with an index of 52/100, including flights and accommodation.

The most favorable months in San Jose are: April, May, June, July, August, September, October and November. You are therefore already in one of the best times of the year; shifting your plans would not gain you much in terms of weather.
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