GreenlyLast and first frost dates in Boa Vista
Brazil
Boa Vista had no frost in 2016–2025, so crops are planted by warmth and rain rather than by frost dates.
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| Last spring frost | none in ten years |
|---|---|
| First autumn frost | none in ten years |
Median of 2016–2025 for the 25 km grid cell of the city: the last day at or below 0 °C in spring and the first in autumn (ERA5 reanalysis via Open-Meteo). In a cold year a frost can come a week or two later — Greenly warns 48 hours ahead.
There is no frost season here: crops are planted by warmth and rain rather than by frost dates.
When the soil warms up in Boa Vista
The day the top 7 cm of soil first averages each temperature over a week, median of 2016–2025 (ERA5 via Open-Meteo).
| Soil | Date |
|---|---|
| 5 °C | already in the first week of January |
| 10 °C | already in the first week of January |
| 15 °C | already in the first week of January |
| 18 °C | already in the first week of January |
Frost dates near Boa Vista
| City | Distance | Last spring frost | First autumn frost |
|---|---|---|---|
| Ciudad Guayana | 651 km | — | — |
| Manaus | 664 km | — | — |
| Ciudad Bolívar | 670 km | — | — |
| Maturín | 818 km | — | — |
| Barcelona (Venezuela) | 926 km | — | — |
Boa Vista: weather for the next 7 days
Forecast by Open-Meteo. Nights at or below 0 °C are marked as frost.
Weather in Boa Vista by month
Average weather in Boa Vista over 2016–2025: the warmest month is March. Months that average 20 °C or more by day: January–December (29–33.4 °C). Months that average 30 °C or more by day: August–April (30.4–33.4 °C). No month averages below 0 °C at night; the coldest nights, in July, average 22.8 °C. About 2181 mm of rain falls in a year, on 211 days; May is the wettest month (435 mm) and February the driest (48 mm).
| Month | Day, °C | Night, °C | Rain, mm | Rainy days |
|---|---|---|---|---|
| January | 32.5 | 24.2 | 53 | 8 |
| February | 33 | 24.5 | 48 | 7 |
| March | 33.4 | 24.8 | 84 | 10 |
| April | 31.6 | 24.3 | 211 | 18 |
| May | 29.2 | 23.5 | 435 | 29 |
| June | 29 | 23 | 373 | 27 |
| July | 29 | 22.8 | 321 | 29 |
| August | 30.4 | 23.3 | 190 | 22 |
| September | 31.9 | 24 | 128 | 17 |
| October | 32.5 | 24.3 | 110 | 15 |
| November | 32.1 | 24.4 | 131 | 14 |
| December | 31.6 | 24.3 | 97 | 15 |
Average of the daily highs and lows, rain per month and days with at least 1 mm (ERA5 via Open-Meteo, the same grid cell as the frost dates).
