Climate averages 1991–2020
Vilhena weather
in May.
A warm, moderately wet month: the joint 9th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a warm month in Vilhena: daytime highs average 27.5°C and nights cool to about 19.4°C. By daytime temperature it is the joint 9th warmest of the 12 months.
Expect about 57 mm of rain on roughly 12 days, which makes May a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 32 min on an average May day.
The nearest other city in this atlas is Cacoal (202 km away). In May its highs average 29.3°C, 1.8°C warmer than Vilhena, with 77 mm of rain.
Among the 448 cities listed in Brazil, Vilhena ranks joint 132nd 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; Vilhena is 2.1°C warmer than that mean.
From May to June, average highs rise by 0.8°C to 28.3°C, and monthly rainfall falls from 57 mm to 14 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
Vilhena climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.5°C21.0°C | 21.0°C | 267 | 29.4 | 12.813 h |
| February | 27.2°C20.8°C | 20.8°C | 276 | 27.2 | 12.513 h |
| March | 27.5°C20.9°C | 20.9°C | 241 | 28.6 | 12.212 h |
| April | 27.6°C20.4°C | 20.4°C | 128 | 21.4 | 11.812 h |
| May, selected | 27.5°C19.4°C | 19.4°C | 57 | 12.1 | 11.512 h |
| June | 28.3°C18.5°C | 18.5°C | 14 | 3.0 | 11.411 h |
| July | 29.3°C18.2°C | 18.2°C | 10 | 2.1 | 11.411 h |
| August | 31.0°C19.6°C | 19.6°C | 24 | 4.8 | 11.712 h |
| September | 30.8°C20.9°C | 20.9°C | 84 | 13.5 | 12.012 h |
| October | 29.5°C21.2°C | 21.2°C | 165 | 22.4 | 12.412 h |
| November | 28.2°C21.1°C | 21.1°C | 207 | 25.5 | 12.713 h |
| December | 27.7°C21.1°C | 21.1°C | 259 | 28.2 | 12.913 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
- Cacoal in MayBrazil · 202 kmHigh 29.3°C · Low 21.6°C · 77 mm rain
- Ji Paraná in MayBrazil · 285 kmHigh 29.2°C · Low 21.8°C · 78 mm rain
- Tangará da Serra in MayBrazil · 355 kmHigh 27.9°C · Low 19.4°C · 41 mm rain
- Ariquemes in MayBrazil · 445 kmHigh 29.3°C · Low 22.2°C · 91 mm rain
- Cáceres, Brazil in MayBrazil · 456 kmHigh 29.1°C · Low 20.8°C · 36 mm rain
- Lucas do Rio Verde in MayBrazil · 460 kmHigh 30.1°C · Low 20.7°C · 24 mm rain
- Sorriso in MayBrazil · 482 kmHigh 30.3°C · Low 20.8°C · 27 mm rain
- Sinop in MayBrazil · 514 kmHigh 30.2°C · Low 20.7°C · 31 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 Vilhena) is explained once on the Vilhena year overview and on the Sources, method and limits page.