Montevideo Weather in September
Montevideo in September
The short of it: Montevideo in September averages a high of 18 °C (64 °F) and a low of 9 °C (48 °F), with 79 mm (3.1 in) of rain and about 11 h 56 min of daylight. Rated 3 of 5 for a visit; the best months are December and November. Source: TerraClimate climate normals, 1991–2020.
Average high 18° · low 9° · rain 79 mm · daylight 11 h 56 min
✦✦✦ Fair for a visit · best months: December & November
Thirty years of records give Montevideo an average September high of 18°, a low of 9° and some 79 mm of rain. Much like August: highs about 18°, nights near 9°. A wool coat will serve you well. Wet spells are common — about 79 mm, the 5th wettest month.
The sun is up for about 11 h 56 min in mid-September, 66 minutes more than a month before.
For the traveller: pack layers, a wool coat and stout boots, and an oilskin besides. The Almanac rates September 3 of 5 for a visit; the finest months here are December and November.
Against its neighbours, Montevideo runs cooler than most and drier than most in September. Paso de Carrasco, 13 km to the ENE, sees much the same highs.
September in Montevideo, by the numbers
- Warmth rank
- 9th warmest of 12
- Rain rank
- 5th wettest of 12
- Versus August
- 2° warmer, 4.0 mm less rain
- Versus October
- 3° colder
- Day–night spread
- 9°
- Snow season
- seldom any
- Daylight, mid-month
- 11 h 56 min
- Average wind
- 18 km/h
Neighbouring Towns
September averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| Paso de CarrascoCanelones | 13 km ENE | 18° | 9° | 85 mm |
| Barra de CarrascoCanelones | 15 km ENE | 18° | 9° | 85 mm |
| AbayubaMontevideo Department | 16 km N | 18° | 9° | 83 mm |
| La PazCanelones | 16 km NNW | 18° | 9° | 83 mm |
| Pajas BlancasMontevideo Department | 17 km NW | 18° | 9° | 78 mm |
| Colonia NicolichCanelones | 18 km ENE | 18° | 9° | 89 mm |
| Santiago VázquezMontevideo Department | 19 km NW | 18° | 9° | 80 mm |
| Las PiedrasCanelones | 19 km N | 18° | 8° | 85 mm |