San Jose in Summer
In summer (June, July and August), San Jose sees average daytime highs around 31°C and overnight lows near 25°C, with 1216 mm of rain over about 87 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 31°C. The sky is clear or mostly clear about 3% of the time across summer, and the air most often feels miserable.
Summer is San Jose's weakest season of the year to visit on our travel score. San Jose has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see San Jose's year-round climate.
- Avg daytime high
- 31°C
- 2nd-warmest season
- Avg overnight low
- 25°C
- Rainfall
- 1216 mm
- 87 wet days
- Avg wind
- 8 km/h
- Travel score
- 2.4
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in San Jose in Summer
Across summer, daytime highs hold fairly steady around 31°C.
A typical summer day in San Jose reaches about 31°C and drops to 25°C overnight. The warmest of the three months is June, the coolest July.
How summer really feels in San Jose
Once humidity and wind are folded in, summer brings about 92 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
San Jose weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 29° / 23° | 108 | 14.8 | 11.3 | 4.9 |
| Feb | 29° / 23° | 80 | 11 | 11.6 | 4.9 |
| Mar | 31° / 23° | 79 | 12.9 | 11.9 | 4.4 |
| Apr | 32° / 24° | 66 | 11.7 | 12.3 | 3.7 |
| May | 32° / 25° | 203 | 21.6 | 12.6 | 2.8 |
| Jun | 31° / 25° | 317 | 27 | 12.8 | 2.4 |
| Jul | 30° / 25° | 474 | 30.1 | 12.7 | 2.4 |
| Aug | 30° / 25° | 425 | 29.8 | 12.4 | 2.5 |
| Sep | 30° / 24° | 413 | 28.9 | 12.1 | 2.5 |
| Oct | 31° / 24° | 270 | 27 | 11.7 | 2.8 |
| Nov | 30° / 24° | 170 | 20.6 | 11.4 | 3.6 |
| Dec | 29° / 24° | 193 | 19.5 | 11.2 | 4.1 |
Cloud cover in Summer
The sky is clear or mostly clear about 3% of the time across summer.
Chance of precipitation in Summer
San Jose gets around 1216 mm of rain over 87 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 8 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 42 min in early June to 12 h 18 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.2 kWh/m².
Hazard calendar for San Jose
In summer, San Jose overlaps its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.
San Jose sits in the Pacific typhoon belt; the season peaks July–October.
San Jose's rainy season runs June–October, when most of the year's rain falls.
Is summer a good time to visit San Jose?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in San Jose.
What to pack for San Jose in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, San Jose sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 87 days see rain.
Sea temperature near San Jose in Summer
The nearest coast averages about 29°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 32 km away) is warmest in June at about 30°C and coldest in January near 27°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 27 | 28 | 29 | 29 | 30 | 29 | 29 | 29 | 29 | 28 | 28 |
| Comfort | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 28 | Warm |
| Apr | 29 | Tropical |
| May | 29 | Tropical |
| Jun | 30 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 28 | Tropical |
| Dec | 28 | Warm |
UV index in San Jose in Summer
Clear-sky midday UV across summer averages around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in San Jose peaks around August 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 9 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 10 | 12 | 12 | 14 | 12 | 12 | 12 | 14 | 13 | 11 | 10 | 9 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 12 | Extreme |
| Mar | 12 | Extreme |
| Apr | 14 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 14 | Extreme |
| Sep | 13 | Extreme |
| Oct | 11 | Extreme |
| Nov | 10 | Very high |
| Dec | 9 | Very high |
Air quality in San Jose in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in San Jose is worst in September — around 21 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (April, 10 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 14 | 14 | 12 | 10 | 14 | 19 | 20 | 21 | 21 | 16 | 12 | 12 |
| Level | Moderate | Moderate | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 14 | Moderate |
| Mar | 12 | Good |
| Apr | 10 | Good |
| May | 14 | Moderate |
| Jun | 19 | Moderate |
| Jul | 20 | Moderate |
| Aug | 21 | Moderate |
| Sep | 21 | Moderate |
| Oct | 16 | Moderate |
| Nov | 12 | Moderate |
| Dec | 12 | Moderate |
Where is San Jose?
San Jose sits at 13.3°N, 123.5°E, 199 m above sea level, in Philippines. The nearest listed city is Polangui, 9.0 km away.
Topography around San Jose
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Jose.
Within 3 km, the terrain around San Jose has significant variations in elevation — a maximum elevation change of 547 m around an average of 282 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,605 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,411 m.
The land around San Jose is covered by trees (88%) within 3 km, trees (75%) within 16 km, and water (57%) and trees (36%) within 80 km.
Philippines travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B / C
- 230 V · 60 Hz
- Prices
- ≈ 33% of US
- price level, 2025
- GDP per capita
- $4,171
- 2025
- Happiness
- 6.2 / 10
- World Happiness, 2025
- Safe drinking water
- 48%
- of population, 2024
- Homicide rate
- 4.3
- per 100k, 2023
- Road deaths
- 12
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- High
- EF EPI 569
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for San Jose (13.35°, 123.55°, elevation 199 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.