Climate averages 1991–2020
Grajaú weather
in October.
A hot, fairly dry month: the 2nd warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a hot month in Grajaú: daytime highs average 33.8°C and nights cool to about 24.1°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 32 mm of rain on roughly 5 days, which makes October a fairly dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 14 min on an average October day.
The nearest other city in this atlas is Barra do Corda (105 km away). In October its highs average 34.4°C, 0.6°C warmer than Grajaú, with 33 mm of rain.
Among the 448 cities listed in Brazil, Grajaú ranks joint 27th of 448 for the warmest October highs and joint 73rd of 448 for the driest October (rainfall, lowest first). The mean October high of those 448 cities is 28.3°C; Grajaú is 5.5°C warmer than that mean.
From October to November, average highs fall by 1.7°C to 32.1°C, and monthly rainfall rises from 32 mm to 78 mm.
The annual picture
October 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
Grajaú climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.3°C22.6°C | 22.6°C | 172 | 24.7 | 12.412 h |
| February | 29.2°C22.6°C | 22.6°C | 177 | 24.0 | 12.312 h |
| March | 29.2°C22.6°C | 22.6°C | 188 | 26.1 | 12.112 h |
| April | 29.5°C22.6°C | 22.6°C | 132 | 20.4 | 12.012 h |
| May | 30.1°C22.3°C | 22.3°C | 64 | 10.5 | 11.912 h |
| June | 31.5°C22.1°C | 22.1°C | 8.4 | 1.6 | 11.812 h |
| July | 32.5°C22.2°C | 22.2°C | 4.7 | 0.8 | 11.812 h |
| August | 33.7°C22.6°C | 22.6°C | 1.9 | 0.3 | 11.912 h |
| September | 34.4°C23.5°C | 23.5°C | 8.9 | 1.7 | 12.112 h |
| October, selected | 33.8°C24.1°C | 24.1°C | 32 | 5.3 | 12.212 h |
| November | 32.1°C23.7°C | 23.7°C | 78 | 11.9 | 12.412 h |
| December | 30.7°C23.2°C | 23.2°C | 135 | 17.8 | 12.512 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
October in nearby cities
- Barra do Corda in OctoberBrazil · 105 kmHigh 34.4°C · Low 24.4°C · 33 mm rain
- Imperatriz in OctoberBrazil · 153 kmHigh 33.5°C · Low 24.7°C · 39 mm rain
- Açailândia in OctoberBrazil · 180 kmHigh 33.0°C · Low 23.4°C · 41 mm rain
- Balsas in OctoberBrazil · 191 kmHigh 34.0°C · Low 24.0°C · 55 mm rain
- Bacabal in OctoberBrazil · 232 kmHigh 35.1°C · Low 25.2°C · 17 mm rain
- Santa Inês in OctoberBrazil · 254 kmHigh 34.4°C · Low 24.8°C · 19 mm rain
- Araguaína in OctoberBrazil · 275 kmHigh 32.4°C · Low 22.9°C · 94 mm rain
- Codó in OctoberBrazil · 292 kmHigh 35.4°C · Low 24.7°C · 16 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 Grajaú) is explained once on the Grajaú year overview and on the Sources, method and limits page.