Climate averages 1991–2020
Itu weather
in January.
A warm, very wet month: the joint 2nd warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a warm month in Itu: daytime highs average 27.6°C and nights cool to about 19.6°C. By daytime temperature it is the joint 2nd warmest of the 12 months.
Expect about 237 mm of rain on roughly 22 days, which makes January a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 23 min on an average January day.
The nearest other city in this atlas is Salto (7 km away). In January its highs average 28.0°C, about as warm as Itu, with 237 mm of rain.
Among the 448 cities listed in Brazil, Itu ranks joint 298th of 448 for the warmest January highs and joint 278th of 448 for the driest January (rainfall, lowest first). The mean January high of those 448 cities is 28.5°C; Itu is 0.9°C cooler than that mean.
From January to February, average highs rise by 0.2°C to 27.9°C, and monthly rainfall falls from 237 mm to 162 mm.
The annual picture
January in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Itu climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 27.6°C19.6°C | 19.6°C | 237 | 21.7 | 13.413 h |
| February | 27.9°C19.7°C | 19.7°C | 162 | 18.1 | 12.913 h |
| March | 27.1°C18.9°C | 18.9°C | 125 | 16.3 | 12.212 h |
| April | 26.1°C17.2°C | 17.2°C | 61 | 7.8 | 11.612 h |
| May | 23.5°C14.4°C | 14.4°C | 63 | 6.5 | 11.011 h |
| June | 22.7°C12.9°C | 12.9°C | 48 | 5.1 | 10.711 h |
| July | 22.9°C12.3°C | 12.3°C | 43 | 4.5 | 10.811 h |
| August | 24.8°C13.2°C | 13.2°C | 36 | 4.3 | 11.311 h |
| September | 26.3°C15.3°C | 15.3°C | 82 | 8.4 | 11.912 h |
| October | 27.1°C17.0°C | 17.0°C | 111 | 12.6 | 12.613 h |
| November | 26.8°C17.6°C | 17.6°C | 142 | 14.9 | 13.213 h |
| December | 27.6°C19.0°C | 19.0°C | 184 | 19.0 | 13.514 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
January in nearby cities
- Salto in JanuaryBrazil · 7 kmHigh 28.0°C · Low 19.9°C · 237 mm rain
- Indaiatuba in JanuaryBrazil · 21 kmHigh 27.6°C · Low 19.6°C · 255 mm rain
- Sorocaba in JanuaryBrazil · 31 kmHigh 27.5°C · Low 19.5°C · 218 mm rain
- São Roque in JanuaryBrazil · 34 kmHigh 26.5°C · Low 19.0°C · 229 mm rain
- Votorantim in JanuaryBrazil · 34 kmHigh 27.8°C · Low 19.9°C · 218 mm rain
- Jundiaí in JanuaryBrazil · 43 kmHigh 26.9°C · Low 19.0°C · 243 mm rain
- Santana de Parnaíba in JanuaryBrazil · 44 kmHigh 26.8°C · Low 19.2°C · 230 mm rain
- Ibiúna in JanuaryBrazil · 44 kmHigh 25.7°C · Low 18.7°C · 275 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Itu) is explained once on the Itu year overview and on the Sources, method and limits page.
Salto lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.