Climate averages 1991–2020
São Cristóvão weather
in May.
A warm, wet month: the joint 7th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a warm month in São Cristóvão: daytime highs average 27.2°C and nights cool to about 23.6°C. By daytime temperature it is the joint 7th warmest of the 12 months.
Expect about 157 mm of rain on roughly 23 days, which makes May a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 37 min on an average May day.
The nearest other city in this atlas is Aracaju (19 km away). In May its highs average 27.3°C, about as warm as São Cristóvão, with 185 mm of rain.
Among the 448 cities listed in Brazil, São Cristóvão ranks joint 139th of 448 for the warmest May highs and joint 402nd of 448 for the driest May (rainfall, lowest first). The mean May high of those 448 cities is 25.3°C; São Cristóvão is 1.9°C warmer than that mean.
From May to June, average highs fall by 1.2°C to 26.0°C, and monthly rainfall falls from 157 mm to 148 mm.
The annual picture
May 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, selected | 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
May in nearby cities
- Aracaju in MayBrazil · 19 kmHigh 27.3°C · Low 23.8°C · 185 mm rain
- Itabaiana in MayBrazil · 44 kmHigh 27.8°C · Low 21.6°C · 83 mm rain
- Lagarto in MayBrazil · 50 kmHigh 28.1°C · Low 21.8°C · 83 mm rain
- Arapiraca in MayBrazil · 152 kmHigh 28.0°C · Low 21.5°C · 74 mm rain
- Alagoinhas in MayBrazil · 182 kmHigh 27.9°C · Low 21.5°C · 95 mm rain
- Serrinha in MayBrazil · 209 kmHigh 27.7°C · Low 20.4°C · 48 mm rain
- Paulo Afonso in MayBrazil · 210 kmHigh 29.8°C · Low 21.7°C · 30 mm rain
- Dias d'Ávila in MayBrazil · 214 kmHigh 27.6°C · Low 22.4°C · 140 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.