Piracicaba climate
Piracicaba (São Paulo, Brazil) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 22 °C72 °F, and about 1,245 mm49 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Piracicaba climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2984 | 2068 | 2476 | 2499.8 |
| Feb | 2985 | 2068 | 2576 | 1616.3 |
| Mar | 2983 | 1966 | 2475 | 1275.0 |
| Apr | 2882 | 1763 | 2272 | 642.5 |
| May | 2577 | 1456 | 1967 | 592.3 |
| Jun | 2577 | 1254 | 1966 | 361.4 |
| Jul | 2678 | 1253 | 1966 | 311.2 |
| Aug | 2883 | 1355 | 2069 | 291.2 |
| Sep | 3188 | 1559 | 2373 | 502.0 |
| Oct | 3289 | 1864 | 2576 | 1024.0 |
| Nov | 3087 | 1865 | 2476 | 1556.1 |
| Dec | 3086 | 1967 | 2577 | 1837.2 |
| Year | 3289 | 1253 | 2272 | 1,24549 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 81% | 75% | 5.7 | 13:23 |
| Feb | 80% | 65% | 5.8 | 12:53 |
| Mar | 82% | 58% | 5.5 | 12:17 |
| Apr | 80% | 42% | 4.9 | 11:35 |
| May | 79% | 45% | 4.0 | 11:02 |
| Jun | 76% | 39% | 3.8 | 10:45 |
| Jul | 70% | 35% | 4.0 | 10:52 |
| Aug | 64% | 30% | 4.8 | 11:20 |
| Sep | 61% | 43% | 5.3 | 11:00 |
| Oct | 65% | 61% | 5.8 | 12:40 |
| Nov | 72% | 65% | 6.0 | 13:15 |
| Dec | 77% | 71% | 6.1 | 13:31 |
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 Piracicaba is like
The warmest month is December, with an average high of 30 °C86 °F and a low of 19 °C67 °F. The coldest is July, when highs average 26 °C78 °F and lows 12 °C53 °F. Seasonal differences are small — just 6.1 °C11 °F between the warmest and the coolest month.
It is wet, with about 1,245 mm49 in of precipitation per year. The wettest three-month stretch is December–February, which brings 48% of the annual total. The wettest month is January (249 mm9.8 in), the driest is August (29 mm1.2 in).
Relative humidity ranges from 61% in September to 82% in March. The clearest skies (lowest average cloud amount, 30%) are typical of August. Average wind speed near the ground ranges from 6 km/h (4 mph) in March to 9 km/h (6 mph) in September. Daylight lasts from about 10.7 hours in June to 13.5 hours in December.
Best time to visit Piracicaba
Based on these averages, the most comfortable months for sightseeing and outdoor activities are April–August: average highs of 25 °C77 °F to 28 °C83 °F with 29 mm1.2 in to 64 mm2.5 in of precipitation per month.
The most challenging month is January, which is very wet (249 mm9.8 in) and humid (81% 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 Piracicaba
- Wetter months (November–March) — highs 2983 to 30 °C87 °F, lows 1865 to 20 °C68 °F, about 175 mm6.9 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 2577 to 32 °C89 °F, lows 1253 to 18 °C64 °F, about 53 mm2.1 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 Piracicaba compares
Compared with Campinas, about 64 km to the east, Piracicaba is on average 1.4 °C2.6 °F warmer and receives 5% less precipitation (1,245 mm49 in vs 1,312 mm52 in). The difference is largest in October (1.9 °C3.5 °F warmer).
Of the 223 places in Brazil covered by World Climates, Piracicaba is the 133rd warmest by annual mean temperature and the 141st 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): Córdoba (Mexico, Cwa), Sunshine Coast (Australia, Cfa) and Gladstone (Australia, Cfa).
The same NASA POWER grid cell also contains Limeira (pop. 291,869), Americana (pop. 246,655), Rio Claro (pop. 201,418) and Araras (pop. 135,744). Their long-term averages in this dataset are essentially the same as for Piracicaba, so they do not have separate pages.
Nearby places
- Sumaré 41 km · 22 °C71 °F · 1,241 mm49 in
- Indaiatuba 60 km · 21 °C70 °F · 1,241 mm49 in
- Campinas 64 km · 21 °C70 °F · 1,312 mm52 in
- Leme 66 km · 22 °C72 °F · 1,253 mm49 in
- Valinhos 72 km · 21 °C70 °F · 1,312 mm52 in
- Tatuí 73 km · 21 °C69 °F · 1,279 mm50 in
- Mogi Guaçu 82 km · 22 °C72 °F · 1,304 mm51 in
- São Carlos 83 km · 21 °C69 °F · 1,229 mm48 in
Frequently asked questions
What is the warmest month in Piracicaba?
December is the warmest month in Piracicaba, with an average high of 30 °C (86 °F) and an average low of 19 °C (67 °F).
What is the coldest month in Piracicaba?
July is the coldest month, with an average high of 26 °C (78 °F) and an average low of 12 °C (53 °F).
When does it rain the most in Piracicaba?
January is the wettest month with about 249 mm (9.8 in) of precipitation; August is the driest with about 29 mm (1.2 in).
What is the best time to visit Piracicaba?
Judging by long-term averages, the most comfortable months are April–August.
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 634 m, while Piracicaba lies at about 530 m. Temperatures on this page were therefore adjusted by +0.7 °C1.2 °F using the standard lapse rate of 6.5 °C per 1,000 m.