Climate averages 1991–2020
Serra weather
in September.
A warm, moderately wet month: the joint 8th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Serra: daytime highs average 25.5°C and nights cool to about 19.3°C. By daytime temperature it is the joint 8th warmest of the 12 months.
Expect about 50 mm of rain on roughly 10 days, which makes September a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 58 min on an average September day.
The nearest other city in this atlas is Cariacica (19 km away). In September its highs average 25.3°C, about as warm as Serra, with 66 mm of rain.
Among the 448 cities listed in Brazil, Serra ranks joint 321st of 448 for the warmest September highs and joint 175th of 448 for the driest September (rainfall, lowest first). The mean September high of those 448 cities is 27.5°C; Serra is 2.0°C cooler than that mean.
From September to October, average highs rise by 1.0°C to 26.5°C, and monthly rainfall rises from 50 mm to 93 mm.
The annual picture
September 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
Serra climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.9°C22.9°C | 22.9°C | 101 | 12.1 | 13.213 h |
| February | 29.3°C23.1°C | 23.1°C | 69 | 11.8 | 12.813 h |
| March | 28.6°C22.9°C | 22.9°C | 122 | 15.5 | 12.212 h |
| April | 27.1°C21.8°C | 21.8°C | 85 | 13.8 | 11.612 h |
| May | 25.5°C19.9°C | 19.9°C | 60 | 10.5 | 11.211 h |
| June | 24.7°C18.7°C | 18.7°C | 34 | 7.8 | 10.911 h |
| July | 24.1°C18.1°C | 18.1°C | 41 | 9.3 | 11.011 h |
| August | 24.4°C18.1°C | 18.1°C | 41 | 9.0 | 11.411 h |
| September, selected | 25.5°C19.3°C | 19.3°C | 50 | 10.2 | 12.012 h |
| October | 26.5°C20.5°C | 20.5°C | 93 | 10.8 | 12.513 h |
| November | 26.7°C21.3°C | 21.3°C | 177 | 15.4 | 13.113 h |
| December | 28.1°C22.4°C | 22.4°C | 156 | 14.6 | 13.313 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
September in nearby cities
- Cariacica in SeptemberBrazil · 19 kmHigh 25.3°C · Low 19.0°C · 66 mm rain
- Vila Velha in SeptemberBrazil · 22 kmHigh 25.3°C · Low 19.8°C · 50 mm rain
- Aracruz in SeptemberBrazil · 34 kmHigh 26.7°C · Low 18.9°C · 40 mm rain
- Viana, Brazil in SeptemberBrazil · 35 kmHigh 26.2°C · Low 19.2°C · 63 mm rain
- Guarapari in SeptemberBrazil · 64 kmHigh 25.8°C · Low 20.1°C · 57 mm rain
- Colatina in SeptemberBrazil · 74 kmHigh 28.2°C · Low 19.2°C · 21 mm rain
- Linhares in SeptemberBrazil · 86 kmHigh 27.2°C · Low 19.3°C · 45 mm rain
- Cachoeiro de Itapemirim in SeptemberBrazil · 116 kmHigh 27.2°C · Low 17.8°C · 76 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 Serra) is explained once on the Serra year overview and on the Sources, method and limits page.
Vila Velha lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.