Climate averages 1991–2020
Ariquemes weather
in March.
A hot, very wet month: the joint 9th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a hot month in Ariquemes: daytime highs average 29.4°C and nights cool to about 22.8°C. By daytime temperature it is the joint 9th warmest of the 12 months.
Expect about 274 mm of rain on roughly 28 days, which makes March a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 10 min on an average March day.
The nearest other city in this atlas is Porto Velho (159 km away). In March its highs average 29.3°C, about as warm as Ariquemes, with 328 mm of rain.
Among the 448 cities listed in Brazil, Ariquemes ranks joint 94th of 448 for the warmest March highs and joint 401st of 448 for the driest March (rainfall, lowest first). The mean March high of those 448 cities is 27.9°C; Ariquemes is 1.5°C warmer than that mean.
From March to April, average highs fall by 0.1°C to 29.4°C, and monthly rainfall falls from 274 mm to 185 mm.
The annual picture
March 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
Ariquemes climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.5°C22.8°C | 22.8°C | 281 | 27.6 | 12.613 h |
| February | 29.3°C22.7°C | 22.7°C | 282 | 26.3 | 12.412 h |
| March, selected | 29.4°C22.8°C | 22.8°C | 274 | 28.1 | 12.212 h |
| April | 29.4°C22.7°C | 22.7°C | 185 | 23.8 | 11.912 h |
| May | 29.3°C22.2°C | 22.2°C | 91 | 15.7 | 11.712 h |
| June | 30.7°C21.5°C | 21.5°C | 20 | 4.4 | 11.612 h |
| July | 32.7°C21.5°C | 21.5°C | 13 | 2.5 | 11.612 h |
| August | 33.9°C22.4°C | 22.4°C | 32 | 5.3 | 11.812 h |
| September | 33.1°C23.3°C | 23.3°C | 86 | 13.9 | 12.012 h |
| October | 32.1°C23.3°C | 23.3°C | 142 | 20.1 | 12.312 h |
| November | 30.4°C23.1°C | 23.1°C | 208 | 23.2 | 12.613 h |
| December | 29.8°C22.9°C | 22.9°C | 246 | 26.8 | 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
March in nearby cities
- Porto Velho in MarchBrazil · 159 kmHigh 29.3°C · Low 23.4°C · 328 mm rain
- Ji Paraná in MarchBrazil · 161 kmHigh 29.2°C · Low 22.8°C · 241 mm rain
- Cacoal in MarchBrazil · 243 kmHigh 29.2°C · Low 22.6°C · 270 mm rain
- Riberalta in MarchBolivia · 351 kmHigh 29.4°C · Low 23.3°C · 255 mm rain
- Vilhena in MarchBrazil · 445 kmHigh 27.5°C · Low 20.9°C · 241 mm rain
- Rio Branco in MarchBrazil · 522 kmHigh 29.2°C · Low 22.8°C · 249 mm rain
- Trinidad in MarchBolivia · 583 kmHigh 29.3°C · Low 23.3°C · 234 mm rain
- Coari in MarchBrazil · 648 kmHigh 29.3°C · Low 23.9°C · 334 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 Ariquemes) is explained once on the Ariquemes year overview and on the Sources, method and limits page.