Petrópolis Weather in September
Petrópolis in September
The short of it: Petrópolis in September averages a high of 24 °C (75 °F) and a low of 12 °C (54 °F), with 70 mm (2.8 in) of rain and about 12 h 0 min of daylight. Rated 4 of 5 for a visit; the best months are August and June. Source: TerraClimate climate normals, 1991–2020.
Average high 24° · low 12° · rain 70 mm · daylight 12 h 0 min
✦✦✦✦ Recommended for a visit · best months: August & June
Thirty years of records give Petrópolis an average September high of 24°, a low of 12° and some 70 mm of rain. Much like August: highs about 24°, nights near 12°. Easy travelling weather. Wet spells are common — about 70 mm, the 9th wettest month.
The sun is up for about 12 h 0 min in mid-September, 39 minutes more than a month before.
For the traveller: pack light clothes and a jacket for the evening, and an oilskin besides. The Almanac rates September 4 of 5 for a visit; the finest months here are August and June.
Against its neighbours, Petrópolis runs cooler than most and wetter than most in September. Guapimirim, 21 km to the E, is 3° warmer by day.
September in Petrópolis, by the numbers
- Warmth rank
- 8th warmest of 12
- Rain rank
- 9th wettest of 12
- Versus August
- 1° warmer, 22 mm more rain
- Versus October
- about the same
- Day–night spread
- 12°
- Snow season
- seldom any
- Daylight, mid-month
- 12 h 0 min
- Average wind
- 10 km/h
Neighbouring Towns
September averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| GuapimirimRio de Janeiro | 21 km E | 27° | 16° | 44 mm |
| MagéRio de Janeiro | 22 km SE | 28° | 17° | 42 mm |
| TeresópolisRio de Janeiro | 23 km ENE | 23° | 11° | 63 mm |
| São PedroRio de Janeiro | 24 km ENE | 23° | 11° | 63 mm |
| Paty do AlferesRio de Janeiro | 26 km WNW | 25° | 13° | 55 mm |
| Miguel PereiraRio de Janeiro | 30 km W | 25° | 13° | 54 mm |
| ArealRio de Janeiro | 31 km NNE | 26° | 14° | 50 mm |
| FreguesiaRio de Janeiro | 32 km S | 28° | 17° | 46 mm |