São José dos Campos climate
São José dos Campos (São Paulo, Brazil) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 21 °C70 °F, and about 1,353 mm53 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
São José dos Campos climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2883 | 1967 | 2475 | 2268.9 |
| Feb | 2983 | 1966 | 2475 | 1797.0 |
| Mar | 2882 | 1865 | 2373 | 1566.2 |
| Apr | 2680 | 1762 | 2271 | 813.2 |
| May | 2475 | 1356 | 1966 | 592.3 |
| Jun | 2475 | 1254 | 1865 | 421.6 |
| Jul | 2475 | 1253 | 1864 | 471.9 |
| Aug | 2679 | 1254 | 1967 | 341.4 |
| Sep | 2984 | 1457 | 2171 | 602.4 |
| Oct | 2985 | 1661 | 2373 | 1114.4 |
| Nov | 2883 | 1762 | 2373 | 1656.5 |
| Dec | 2983 | 1865 | 2474 | 1917.5 |
| Year | 2985 | 1253 | 2170 | 1,35353 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 83% | 76% | 5.5 | 13:25 |
| Feb | 83% | 67% | 5.7 | 12:54 |
| Mar | 85% | 66% | 5.1 | 12:17 |
| Apr | 84% | 61% | 4.5 | 11:35 |
| May | 82% | 62% | 3.6 | 11:01 |
| Jun | 80% | 54% | 3.3 | 10:43 |
| Jul | 76% | 50% | 3.5 | 10:50 |
| Aug | 71% | 50% | 4.2 | 11:19 |
| Sep | 69% | 63% | 4.4 | 11:00 |
| Oct | 73% | 72% | 4.9 | 12:41 |
| Nov | 79% | 77% | 5.3 | 13:16 |
| Dec | 82% | 78% | 5.6 | 13:33 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of São José dos Campos is like
The warmest month is January, with an average high of 28 °C83 °F and a low of 19 °C67 °F. The coldest is July, when highs average 24 °C75 °F and lows 12 °C53 °F. Seasonal differences are small — just 6 °C10.8 °F between the warmest and the coolest month.
It is wet, with about 1,353 mm53 in of precipitation per year. The wettest three-month stretch is December–February, which brings 44% of the annual total. The wettest month is January (226 mm8.9 in), the driest is August (34 mm1.4 in).
Relative humidity ranges from 69% in September to 85% in March. The clearest skies (lowest average cloud amount, 50%) are typical of August. Average wind speed near the ground ranges from 4 km/h (3 mph) in April to 6 km/h (4 mph) in October. Daylight lasts from about 10.7 hours in June to 13.6 hours in December.
Best time to visit São José dos Campos
Based on these averages, the most comfortable months for sightseeing and outdoor activities are May–September: average highs of 24 °C75 °F to 29 °C84 °F with 34 mm1.4 in to 60 mm2.4 in of precipitation per month.
The most challenging month is January, which is very wet (226 mm8.9 in) and humid (83% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for São José dos Campos
- Wetter months (November–March) — highs 2882 to 29 °C83 °F, lows 1762 to 19 °C67 °F, about 184 mm7.2 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
- Drier months (April–October) — highs 2475 to 29 °C85 °F, lows 1253 to 17 °C62 °F, about 62 mm2.4 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
How São José dos Campos compares
Compared with Guarulhos, about 73 km to the southwest, São José dos Campos is on average 1.8 °C3.2 °F warmer and receives a similar amount of precipitation. The difference is largest in September (2.4 °C4.4 °F warmer).
Of the 223 places in Brazil covered by World Climates, São José dos Campos is the 164th warmest by annual mean temperature and the 94th wettest by annual precipitation. See all of them on the Brazil climate page.
Places in other countries with the most similar temperature and rainfall pattern (seasons shifted for the other hemisphere where needed): Sunshine Coast (Australia, Cfa), Córdoba (Mexico, Cwa) and Brisbane (Australia, Cfa).
The same NASA POWER grid cell also contains Taubaté (pop. 322,397) and Caçapava (pop. 100,071). Their long-term averages in this dataset are essentially the same as for São José dos Campos, so they do not have separate pages.
Nearby places
- Jacareí 16 km · 21 °C70 °F · 1,380 mm54 in
- Pindamonhangaba 52 km · 22 °C71 °F · 1,353 mm53 in
- Atibaia 68 km · 20 °C68 °F · 1,366 mm54 in
- Caraguatatuba 69 km · 25 °C76 °F · 1,410 mm56 in
- Bragança Paulista 72 km · 20 °C68 °F · 1,366 mm54 in
- Guarulhos 73 km · 20 °C67 °F · 1,380 mm54 in
- Guaratinguetá 82 km · 21 °C70 °F · 1,418 mm56 in
- São Paulo 87 km · 20 °C68 °F · 1,352 mm53 in
Frequently asked questions
What is the warmest month in São José dos Campos?
January is the warmest month in São José dos Campos, with an average high of 28 °C (83 °F) and an average low of 19 °C (67 °F).
What is the coldest month in São José dos Campos?
July is the coldest month, with an average high of 24 °C (75 °F) and an average low of 12 °C (53 °F).
When does it rain the most in São José dos Campos?
January is the wettest month with about 226 mm (8.9 in) of precipitation; August is the driest with about 34 mm (1.4 in).
What is the best time to visit São José dos Campos?
Judging by long-term averages, the most comfortable months are May–September.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 854 m, while São José dos Campos lies at about 600 m. Temperatures on this page were therefore adjusted by +1.7 °C3 °F using the standard lapse rate of 6.5 °C per 1,000 m.