Climate averages 1991–2020
Boa Vista weather
in January.
A hot, fairly dry month: the 3rd warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in Boa Vista: daytime highs average 32.1°C and nights cool to about 24.1°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 34 mm of rain on roughly 7 days, which makes January a fairly dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 59 min on an average January day.
The nearest other city in this atlas is Georgetown (524 km away). In January its highs average 26.8°C, 5.3°C cooler than Boa Vista, with 160 mm of rain.
Among the 448 cities listed in Brazil, Boa Vista ranks joint 14th of 448 for the warmest January highs and joint 2nd of 448 for the driest January (rainfall, lowest first). The mean January high of those 448 cities is 28.5°C; Boa Vista is 3.6°C warmer than that mean.
From January to February, average highs rise by 0.4°C to 32.5°C, and monthly rainfall falls from 34 mm to 31 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
Boa Vista climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 32.1°C24.1°C | 24.1°C | 34 | 6.7 | 12.012 h |
| February | 32.5°C24.3°C | 24.3°C | 31 | 5.8 | 12.012 h |
| March | 33.0°C24.6°C | 24.6°C | 59 | 9.1 | 12.112 h |
| April | 31.1°C24.0°C | 24.0°C | 200 | 17.4 | 12.212 h |
| May | 28.8°C23.2°C | 23.2°C | 343 | 26.4 | 12.212 h |
| June | 28.3°C22.7°C | 22.7°C | 310 | 27.3 | 12.312 h |
| July | 28.3°C22.4°C | 22.4°C | 249 | 26.7 | 12.312 h |
| August | 29.3°C22.7°C | 22.7°C | 156 | 22.2 | 12.212 h |
| September | 30.8°C23.2°C | 23.2°C | 94 | 15.4 | 12.112 h |
| October | 31.8°C23.8°C | 23.8°C | 71 | 12.8 | 12.112 h |
| November | 31.6°C24.0°C | 24.0°C | 90 | 13.6 | 12.012 h |
| December | 31.5°C24.1°C | 24.1°C | 58 | 10.3 | 12.012 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
- Georgetown in JanuaryGuyana · 524 kmHigh 26.8°C · Low 24.1°C · 160 mm rain
- Upata in JanuaryVenezuela · 609 kmHigh 29.6°C · Low 21.1°C · 36 mm rain
- Ciudad Guayana in JanuaryVenezuela · 652 kmHigh 29.6°C · Low 22.1°C · 23 mm rain
- Manaus in JanuaryBrazil · 662 kmHigh 29.2°C · Low 24.1°C · 296 mm rain
- Ciudad Bolívar in JanuaryVenezuela · 670 kmHigh 31.9°C · Low 22.9°C · 13 mm rain
- Manacapuru in JanuaryBrazil · 680 kmHigh 28.7°C · Low 24.3°C · 358 mm rain
- Paramaribo in JanuarySuriname · 698 kmHigh 28.1°C · Low 23.5°C · 110 mm rain
- Itacoatiara in JanuaryBrazil · 708 kmHigh 28.6°C · Low 24.4°C · 337 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 Boa Vista) is explained once on the Boa Vista year overview and on the Sources, method and limits page.