Climate averages 1991–2020
São Cristóvão weather
in January.
A hot, moderately wet month: the 3rd warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in São Cristóvão: daytime highs average 28.9°C and nights cool to about 24.4°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 56 mm of rain on roughly 15 days, which makes January a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 41 min on an average January day.
The nearest other city in this atlas is Aracaju (19 km away). In January its highs average 29.1°C, about as warm as São Cristóvão, with 52 mm of rain.
Among the 448 cities listed in Brazil, São Cristóvão ranks joint 179th of 448 for the warmest January highs and joint 25th of 448 for the driest January (rainfall, lowest first). The mean January high of those 448 cities is 28.5°C; São Cristóvão is 0.4°C warmer than that mean.
From January to February, average highs rise by 0.1°C to 29.0°C, and monthly rainfall rises from 56 mm to 64 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
São Cristóvão climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 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 | 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
January in nearby cities
- Aracaju in JanuaryBrazil · 19 kmHigh 29.1°C · Low 24.5°C · 52 mm rain
- Itabaiana in JanuaryBrazil · 44 kmHigh 31.0°C · Low 22.6°C · 52 mm rain
- Lagarto in JanuaryBrazil · 50 kmHigh 31.2°C · Low 22.8°C · 47 mm rain
- Arapiraca in JanuaryBrazil · 152 kmHigh 31.7°C · Low 22.6°C · 34 mm rain
- Alagoinhas in JanuaryBrazil · 182 kmHigh 31.8°C · Low 22.9°C · 57 mm rain
- Serrinha in JanuaryBrazil · 209 kmHigh 31.7°C · Low 21.8°C · 54 mm rain
- Paulo Afonso in JanuaryBrazil · 210 kmHigh 33.5°C · Low 22.8°C · 38 mm rain
- Dias d'Ávila in JanuaryBrazil · 214 kmHigh 31.3°C · Low 23.6°C · 74 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.