Climate averages 1991–2020
Ji Paraná weather
in January.
A hot, very wet month: the 11th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in Ji Paraná: daytime highs average 29.1°C and nights cool to about 22.8°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 270 mm of rain on roughly 29 days, which makes January a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 41 min on an average January day.
The nearest other city in this atlas is Cacoal (83 km away). In January its highs average 29.1°C, about as warm as Ji Paraná, with 308 mm of rain.
Among the 448 cities listed in Brazil, Ji Paraná ranks joint 160th of 448 for the warmest January highs and joint 359th of 448 for the driest January (rainfall, lowest first). The mean January high of those 448 cities is 28.5°C; Ji Paraná is 0.6°C warmer than that mean.
From January to February, average highs fall by 0.2°C to 28.9°C, and monthly rainfall falls from 270 mm to 263 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
Ji Paraná climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 29.1°C22.8°C | 22.8°C | 270 | 28.5 | 12.713 h |
| February | 28.9°C22.8°C | 22.8°C | 263 | 26.4 | 12.512 h |
| March | 29.2°C22.8°C | 22.8°C | 241 | 27.8 | 12.212 h |
| April | 29.2°C22.6°C | 22.6°C | 148 | 22.2 | 11.912 h |
| May | 29.2°C21.8°C | 21.8°C | 78 | 14.3 | 11.612 h |
| June | 30.5°C20.9°C | 20.9°C | 18 | 3.7 | 11.511 h |
| July | 32.2°C20.8°C | 20.8°C | 11 | 2.0 | 11.512 h |
| August | 33.6°C21.9°C | 21.9°C | 23 | 4.5 | 11.812 h |
| September | 33.3°C23.2°C | 23.2°C | 80 | 13.4 | 12.012 h |
| October | 32.1°C23.3°C | 23.3°C | 143 | 19.8 | 12.312 h |
| November | 30.4°C23.1°C | 23.1°C | 212 | 24.3 | 12.613 h |
| December | 29.5°C23.0°C | 23.0°C | 248 | 26.7 | 12.713 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
- Cacoal in JanuaryBrazil · 83 kmHigh 29.1°C · Low 22.7°C · 308 mm rain
- Ariquemes in JanuaryBrazil · 161 kmHigh 29.5°C · Low 22.8°C · 281 mm rain
- Vilhena in JanuaryBrazil · 285 kmHigh 27.5°C · Low 21.0°C · 267 mm rain
- Porto Velho in JanuaryBrazil · 319 kmHigh 29.6°C · Low 23.4°C · 303 mm rain
- Riberalta in JanuaryBolivia · 448 kmHigh 29.6°C · Low 23.4°C · 269 mm rain
- Trinidad in JanuaryBolivia · 543 kmHigh 29.3°C · Low 23.6°C · 330 mm rain
- Tangará da Serra in JanuaryBrazil · 638 kmHigh 29.3°C · Low 22.3°C · 238 mm rain
- Rio Branco in JanuaryBrazil · 649 kmHigh 29.4°C · Low 22.9°C · 255 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 Ji Paraná) is explained once on the Ji Paraná year overview and on the Sources, method and limits page.