Climate averages 1991–2020
Jacareí weather
in May.
A warm, moderately wet month: the 10th warmest and the joint 4th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
May is a warm month in Jacareí: daytime highs average 23.0°C and nights cool to about 14.3°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 57 mm of rain on roughly 8 days, which makes May a moderately wet month (the joint 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 01 min on an average May day.
The nearest other city in this atlas is São José dos Campos (16 km away). In May its highs average 23.2°C, about as warm as Jacareí, with 57 mm of rain.
Among the 448 cities listed in Brazil, Jacareí ranks joint 327th of 448 for the warmest May highs and joint 159th of 448 for the driest May (rainfall, lowest first). The mean May high of those 448 cities is 25.3°C; Jacareí is 2.3°C cooler than that mean.
From May to June, average highs fall by 0.5°C to 22.6°C, and monthly rainfall falls from 57 mm to 38 mm.
The annual picture
May 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
Jacareí climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.4°C19.5°C | 19.5°C | 226 | 21.9 | 13.413 h |
| February | 27.8°C19.6°C | 19.6°C | 173 | 18.6 | 12.913 h |
| March | 26.7°C18.9°C | 18.9°C | 139 | 18.0 | 12.212 h |
| April | 25.5°C17.2°C | 17.2°C | 57 | 9.5 | 11.612 h |
| May, selected | 23.0°C14.3°C | 14.3°C | 57 | 7.6 | 11.011 h |
| June | 22.6°C12.8°C | 12.8°C | 38 | 5.1 | 10.711 h |
| July | 22.5°C12.0°C | 12.0°C | 44 | 5.1 | 10.811 h |
| August | 23.9°C12.9°C | 12.9°C | 35 | 5.3 | 11.311 h |
| September | 25.2°C14.9°C | 14.9°C | 77 | 9.9 | 11.912 h |
| October | 26.1°C16.6°C | 16.6°C | 109 | 13.5 | 12.613 h |
| November | 25.9°C17.3°C | 17.3°C | 142 | 16.6 | 13.213 h |
| December | 27.0°C18.7°C | 18.7°C | 172 | 20.1 | 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
May in nearby cities
- São José dos Campos in MayBrazil · 16 kmHigh 23.2°C · Low 14.3°C · 57 mm rain
- Mogi das Cruzes in MayBrazil · 33 kmHigh 21.9°C · Low 13.9°C · 65 mm rain
- Caçapava in MayBrazil · 35 kmHigh 23.2°C · Low 14.2°C · 60 mm rain
- Arujá in MayBrazil · 38 kmHigh 21.7°C · Low 13.6°C · 65 mm rain
- Itaquaquecetuba in MayBrazil · 44 kmHigh 22.1°C · Low 14.2°C · 65 mm rain
- Ferraz de Vasconcelos in MayBrazil · 49 kmHigh 22.1°C · Low 14.2°C · 65 mm rain
- Taubaté in MayBrazil · 52 kmHigh 23.1°C · Low 13.8°C · 56 mm rain
- Guarulhos in MayBrazil · 61 kmHigh 22.0°C · Low 14.0°C · 64 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 Jacareí) is explained once on the Jacareí year overview and on the Sources, method and limits page.
São José dos Campos lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.