Campinas is warmest in September, averaging 32° by day and 15° at night. The wettest month is January with 186 mm, and the year brings about 1040 mm in total.
Month by month
| Month | High | Low | Rain | Daylight | Good for |
|---|---|---|---|---|---|
| January | 29° | 19° | 186 mm | 13.3 h | Rainy season |
| February | 29° | 19° | 154 mm | 12.8 h | Mild |
| March | 29° | 18° | 109 mm | 12.2 h | Mild |
| April | 28° | 16° | 33 mm | 11.5 h | Beach weather |
| May | 26° | 13° | 37 mm | 10.9 h | Beach weather |
| June | 25° | 12° | 36 mm | 10.6 h | Beach weather |
| July | 26° | 11° | 19 mm | 10.7 h | Beach weather |
| August | 28° | 12° | 31 mm | 11.2 h | Beach weather |
| September | 32° | 15° | 45 mm | 11.9 h | Beach weather |
| October | 31° | 17° | 127 mm | 12.5 h | Mild |
| November | 30° | 17° | 108 mm | 13.1 h | Mild |
| December | 30° | 19° | 155 mm | 13.4 h | Mild |
High and low are average daily maximum and minimum, rain is typical monthly total, daylight is the hours between sunrise and sunset mid-month. Climate normals from NASA POWER — averages, not promises.
When to go
Beach weather: April, May, June, July, August and September — highs around 27°, nights no colder than 11°, and at most 45 mm of rain in a month.
Wet season: January — up to 186 mm in a single month.