30YearWeather
San Jose in August
San Jose weather in August - United States
☀️Hot & Sunny

San Jose Weather in August

Plan your August trip to San Jose, United States. Based on 30 years of NASA data, expect temperatures of 29°C (high) to 15°C (low), with 0% rain probability and 8 hours of daily sunshine. Great conditions with only 0 rainy days expected.

Avg High
29°C

Hottest around day 15

Avg Low
15°C

Coolest around day 1

Rainy Days
0days

0% avg rain chance

Sunshine
8hrs/day

Summer season

San Jose August Weather Calendar

Click any day to see detailed weather information

Day 1
clear-day
Sunny
28°C0%
Day 2
clear-day
Sunny
28°C0%
Day 3
clear-day
Sunny
28°C0%
Day 4
clear-day
Sunny
28°C0%
Day 5
clear-day
Sunny
28°C0%
Day 6
clear-day
Sunny
28°C0%
Day 7
clear-day
Sunny
28°C0%
Day 8
clear-day
Sunny
29°C0%
Day 9
clear-day
Sunny
29°C0%
Day 10
clear-day
Sunny
29°C0%
Day 11
clear-day
Sunny
29°C0%
Day 12
clear-day
Sunny
29°C0%
Day 13
clear-day
Sunny
29°C0%
Day 14
clear-day
Sunny
30°C0%
Day 15
clear-day
Sunny
30°C0%
Day 16
clear-day
Sunny
30°C0%
Day 17
clear-day
Sunny
29°C0%
Day 18
clear-day
Sunny
29°C0%
Day 19
clear-day
Sunny
29°C0%
Day 20
clear-day
Sunny
28°C0%
Day 21
clear-day
Sunny
28°C0%
Day 22
clear-day
Sunny
28°C0%
Day 23
clear-day
Sunny
28°C0%
Day 24
clear-day
Sunny
28°C0%
Day 25
clear-day
Sunny
29°C0%
Day 26
clear-day
Sunny
29°C0%
Day 27
clear-day
Sunny
29°C0%
Day 28
clear-day
Sunny
29°C0%
Day 29
clear-day
Sunny
30°C0%
Day 30
clear-day
Sunny
30°C0%
Day 31
clear-day
Sunny
29°C0%

Currency

USD

$ United States dollar

Language

English

Driving

Right side

Safety

Moderate Safety

GPI: 2.44

Travel Intelligence

Exclusive flight analytics & health data for San Jose

Smart Flight Estimator

Airport-to-Airport Logistics

unlock smart flight estimates

Add your home location in settings to see airport details.

Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Moderate
51/ 100
Traffic Index

Balanced traffic

Peak Daily Arrivals

0

slots per day

Peak

Jun

Low

Jul

Monthly Traffic Distribution

126
Jan
133
Feb
139
Mar
175
Apr
202
May
209
Jun
124
Jul
158
Aug
158
Sep
158
Oct
158
Nov
158
Dec
Traffic Level
Low Season

Key Connections

San Diego (SAN)
Los Angeles (LAX)
Las Vegas McCarran (LAS)
Phoenix Sky Harbor (PHX)
Seattle Tacoma (SEA)

Health & Safety Advisory

CDC travel health recommendations

No Requirements

No Special Vaccinations Required

Standard travel precautions apply

Source: CDC Travelers' Health

View Complete Health Guide

Is August a Good Time to Visit San Jose?

👍Solid choice for most travelers
Short Answer

Perfect travel weather awaits in San Jose during August - 29°C highs, 62% humidity, and 0% rain probability make this an optimal time for outdoor activities.

Decision Factors

Excellent dry conditions

Only 0% rain probability - ideal for outdoor activities

Plenty of sunshine

12.4h of sunshine daily

Shoulder season - balanced conditions

76% of peak - good value with moderate crowds

Exceptional dining scene

13 Michelin-listed restaurants

Good For

  • 👨‍👩‍👧‍👦
    Families with children

    Comfortable 28.8°C temperatures and low 0% rain risk

  • 🥾
    Outdoor enthusiasts

    Ideal hiking conditions: 28.8°C, 0% rain chance

  • 📸
    Photographers

    12.4h sunshine, 78% clear skies for golden hour shots

  • 🏛️
    Cultural tourists

    Comfortable conditions for exploring museums and sites

  • 💑
    Honeymoon couples

    Wedding score 100/100 with romantic weather conditions

Who Should Avoid

Suitable for most traveler types

930 observations30-year historical data
Confidence: 95%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,San Jose in August averages 29°C with 0% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: San Jose in August

What are the temperatures in San Jose in August?

Daytime highs average 29°C, nights drop to 15°C. There's a significant day/night temperature swing.

How many rainy days in San Jose in August?

Expect around 0 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in San Jose in August?

Light, breathable fabrics. Don't forget sunglasses and a hat.

Is August peak season in San Jose?

This is shoulder season—moderate prices and manageable crowds.