São José do Rio Preto in Summer
In summer (December, January and February), São José do Rio Preto sees average daytime highs around 30°C and overnight lows near 22°C, with 708 mm of rain over about 67 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 30°C. The sky is clear or mostly clear about 15% of the time across summer, and the air most often feels oppressive.
Summer is São José do Rio Preto's weakest season of the year to visit on our travel score. For the whole year in context, see São José do Rio Preto's year-round climate.
- Avg daytime high
- 30°C
- 2nd-warmest season
- Avg overnight low
- 22°C
- Rainfall
- 708 mm
- 67 wet days
- Avg wind
- 8 km/h
- Travel score
- 3.5
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in São José do Rio Preto in Summer
Across summer, daytime highs hold fairly steady around 30°C.
A typical summer day in São José do Rio Preto reaches about 30°C and drops to 22°C overnight. The warmest of the three months is December, the coolest December.
How summer really feels in São José do Rio Preto
Once humidity and wind are folded in, summer brings about 90 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.
São José do Rio Preto weather by month
How the three summer months (December, January and February) 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 | 30° / 22° | 272 | 23.5 | 13.1 | 3.4 |
| Feb | 30° / 22° | 202 | 20.7 | 12.7 | 3.5 |
| Mar | 30° / 21° | 185 | 20.1 | 12.1 | 4.0 |
| Apr | 29° / 20° | 70 | 9.5 | 11.5 | 5.6 |
| May | 27° / 17° | 47 | 5 | 11 | 7.4 |
| Jun | 27° / 16° | 26 | 3.1 | 10.8 | 7.9 |
| Jul | 27° / 16° | 15 | 2.3 | 10.9 | 8.0 |
| Aug | 30° / 17° | 19 | 2.6 | 11.3 | 6.5 |
| Sep | 31° / 19° | 59 | 7 | 11.9 | 5.0 |
| Oct | 31° / 21° | 119 | 13 | 12.5 | 4.1 |
| Nov | 30° / 21° | 172 | 17.6 | 13 | 3.9 |
| Dec | 30° / 21° | 234 | 23.1 | 13.2 | 3.5 |
Cloud cover in Summer
The sky is clear or mostly clear about 15% of the time across summer.
Chance of precipitation in Summer
São José do Rio Preto gets around 708 mm of rain over 67 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — 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 13 h 12 min in early December to 12 h 30 min by late February. 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 5.7 kWh/m².
Hazard calendar for São José do Rio Preto
In summer, São José do Rio Preto overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
São José do Rio Preto's monsoon runs November–March, when most of the year's rain falls.
Is summer a good time to visit São José do Rio Preto?
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 São José do Rio Preto.
What to pack for São José do Rio Preto in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, São José do Rio Preto sees daytime highs around 30°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 67 days see rain.
UV index in São José do Rio Preto in Summer
Clear-sky midday UV across summer averages around 15 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in São José do Rio Preto peaks around January 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 7 (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) | 15 | 15 | 13 | 10 | 8 | 7 | 7 | 8 | 10 | 10 | 13 | 14 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | High | High | Very high | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 13 | Extreme |
| Apr | 10 | Extreme |
| May | 8 | Very high |
| Jun | 7 | High |
| Jul | 7 | High |
| Aug | 8 | Very high |
| Sep | 10 | Very high |
| Oct | 10 | Extreme |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
Air quality in São José do Rio Preto 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 São José do Rio Preto is worst in September — around 30 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (November, 10 µg/m³).
Seasonal pattern from CAMS reanalysis, scaled to São José do Rio Preto's WHO annual average of 14.8 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 11 | 12 | 12 | 12 | 13 | 13 | 13 | 23 | 30 | 19 | 10 | 10 |
| Level | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 12 | Good |
| Mar | 12 | Good |
| Apr | 12 | Moderate |
| May | 13 | Moderate |
| Jun | 13 | Moderate |
| Jul | 13 | Moderate |
| Aug | 23 | Moderate |
| Sep | 30 | Moderate |
| Oct | 19 | Moderate |
| Nov | 10 | Good |
| Dec | 10 | Good |
Where is São José do Rio Preto?
São José do Rio Preto sits at 20.8°S, 49.4°W, 505 m above sea level, in Brazil. The nearest listed city is Bady Bassitt, 13 km away.
Topography around São José do Rio Preto
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São José do Rio Preto.
Within 3 km, the terrain around São José do Rio Preto has only modest variations in elevation — a maximum elevation change of 96 m around an average of 515 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 168 m; within 80 km, significant variations in elevation — a maximum elevation change of 295 m.
The land around São José do Rio Preto is covered by artificial surfaces (83%) within 3 km, cropland (41%), trees (22%) and grassland (21%) within 16 km, and cropland (62%) within 80 km.
Brazil travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / N
- 127 / 220 V · 60 Hz
- Prices
- ≈ 46% of US
- price level, 2025
- GDP per capita
- $10,713
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 89%
- of population, 2024
- Homicide rate
- 19.3
- per 100k, 2023
- Road deaths
- 16
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 482
- 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 São José do Rio Preto (-20.8197°, -49.3794°, elevation 505 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.