Climate averages 1991–2020
São Cristóvão weather
in October.
A warm, moderately wet month: the joint 7th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a warm month in São Cristóvão: daytime highs average 27.2°C and nights cool to about 23.2°C. By daytime temperature it is the joint 7th warmest of the 12 months.
Expect about 52 mm of rain on roughly 14 days, which makes October a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 20 min on an average October day.
The nearest other city in this atlas is Aracaju (19 km away). In October its highs average 27.3°C, about as warm as São Cristóvão, with 60 mm of rain.
Among the 448 cities listed in Brazil, São Cristóvão ranks joint 280th of 448 for the warmest October highs and 99th of 448 for the driest October (rainfall, lowest first). The mean October high of those 448 cities is 28.3°C; São Cristóvão is 1.1°C cooler than that mean.
From October to November, average highs rise by 0.9°C to 28.1°C, and monthly rainfall falls from 52 mm to 41 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
São Cristóvão climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.9°C24.4°C | 24.4°C | 56 | 15.1 | 12.713 h |
| February | 29.0°C24.6°C | 24.6°C | 64 | 16.6 | 12.512 h |
| March | 29.2°C24.7°C | 24.7°C | 71 | 18.1 | 12.212 h |
| April | 28.4°C24.3°C | 24.3°C | 112 | 20.3 | 11.912 h |
| May | 27.2°C23.6°C | 23.6°C | 157 | 22.9 | 11.612 h |
| June | 26.0°C22.7°C | 22.7°C | 148 | 24.0 | 11.511 h |
| July | 25.3°C22.0°C | 22.0°C | 125 | 23.9 | 11.512 h |
| August | 25.2°C21.8°C | 21.8°C | 98 | 22.1 | 11.712 h |
| September | 26.0°C22.3°C | 22.3°C | 64 | 17.2 | 12.012 h |
| October, selected | 27.2°C23.2°C | 23.2°C | 52 | 13.9 | 12.312 h |
| November | 28.1°C23.8°C | 23.8°C | 41 | 11.1 | 12.613 h |
| December | 28.8°C24.3°C | 24.3°C | 33 | 10.1 | 12.813 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
- Aracaju in OctoberBrazil · 19 kmHigh 27.3°C · Low 23.3°C · 60 mm rain
- Itabaiana in OctoberBrazil · 44 kmHigh 28.9°C · Low 21.0°C · 32 mm rain
- Lagarto in OctoberBrazil · 50 kmHigh 29.1°C · Low 21.2°C · 33 mm rain
- Arapiraca in OctoberBrazil · 152 kmHigh 29.7°C · Low 21.1°C · 21 mm rain
- Alagoinhas in OctoberBrazil · 182 kmHigh 30.0°C · Low 21.3°C · 37 mm rain
- Serrinha in OctoberBrazil · 209 kmHigh 30.7°C · Low 20.2°C · 24 mm rain
- Paulo Afonso in OctoberBrazil · 210 kmHigh 32.7°C · Low 21.1°C · 11 mm rain
- Dias d'Ávila in OctoberBrazil · 214 kmHigh 29.4°C · Low 22.1°C · 55 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 São Cristóvão) is explained once on the São Cristóvão year overview and on the Sources, method and limits page.