Climate averages 1991–2020
Arujá weather
in May.
A mild, moderately wet month: the 10th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Arujá: daytime highs average 21.7°C and nights cool to about 13.6°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 65 mm of rain on roughly 8 days, which makes May a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 00 min on an average May day.
The nearest other city in this atlas is Itaquaquecetuba (10 km away). In May its highs average 22.1°C, about as warm as Arujá, with 65 mm of rain.
Among the 448 cities listed in Brazil, Arujá ranks joint 386th of 448 for the warmest May highs and joint 217th of 448 for the driest May (rainfall, lowest first). The mean May high of those 448 cities is 25.3°C; Arujá is 3.6°C cooler than that mean.
From May to June, average highs fall by 0.5°C to 21.3°C, and monthly rainfall falls from 65 mm to 45 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
Arujá climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.1°C18.5°C | 18.5°C | 253 | 24.2 | 13.413 h |
| February | 26.5°C18.6°C | 18.6°C | 200 | 20.4 | 12.913 h |
| March | 25.5°C17.9°C | 17.9°C | 171 | 21.1 | 12.212 h |
| April | 24.2°C16.3°C | 16.3°C | 70 | 11.2 | 11.612 h |
| May, selected | 21.7°C13.6°C | 13.6°C | 65 | 8.2 | 11.011 h |
| June | 21.3°C12.1°C | 12.1°C | 45 | 5.5 | 10.711 h |
| July | 21.2°C11.4°C | 11.4°C | 54 | 5.7 | 10.811 h |
| August | 22.6°C12.2°C | 12.2°C | 42 | 5.6 | 11.311 h |
| September | 24.0°C14.1°C | 14.1°C | 89 | 10.2 | 11.912 h |
| October | 24.8°C15.6°C | 15.6°C | 117 | 14.2 | 12.613 h |
| November | 24.6°C16.3°C | 16.3°C | 161 | 17.1 | 13.213 h |
| December | 25.7°C17.7°C | 17.7°C | 198 | 21.2 | 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
- Itaquaquecetuba in MayBrazil · 10 kmHigh 22.1°C · Low 14.2°C · 65 mm rain
- Ferraz de Vasconcelos in MayBrazil · 17 kmHigh 22.1°C · Low 14.2°C · 65 mm rain
- Mogi das Cruzes in MayBrazil · 20 kmHigh 21.9°C · Low 13.9°C · 65 mm rain
- Guarulhos in MayBrazil · 23 kmHigh 22.0°C · Low 14.0°C · 64 mm rain
- Mairiporã in MayBrazil · 28 kmHigh 22.4°C · Low 14.2°C · 62 mm rain
- São Caetano do Sul in MayBrazil · 34 kmHigh 21.9°C · Low 14.2°C · 64 mm rain
- Ribeirão Pires in MayBrazil · 36 kmHigh 21.9°C · Low 14.6°C · 96 mm rain
- São Paulo in MayBrazil · 36 kmHigh 22.1°C · Low 14.1°C · 58 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 Arujá) is explained once on the Arujá year overview and on the Sources, method and limits page.
Itaquaquecetuba, Mogi das Cruzes and Ferraz de Vasconcelos lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.