Punta del Diablo weather in September

September in Punta del Diablo: cool, rainy, with clean air — a good time to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Punta del Diablo🇺🇾 Uruguay · Pampas & Uruguay · Beach65
  1. 87Jan
  2. 89Feb
  3. 86Mar
  4. 75Apr
  5. 68May
  6. 60Jun
  7. 58Jul
  8. 63Aug
  9. 65Sep
  10. 73Oct
  11. 81Nov
  12. 87Dec

#9 of 12 months in Punta del Diablo · #1050 of 1413 destinations to visit in September · comfort 65/100 (tier C)

Days
17°C
Nights
12°C
Wet days
10
Sun
8 h
Humidity
82%
Daylight
12 h
Punta del Diablo, Uruguay
Photo: Diego Gonzalez · Pexels

Traveller notes on Punta del Diablo in September

Other months in Punta del Diablo

Uruguay forum threads describe January as genuinely hot and squarely peak season here, running mid-December through late February, with restaurants, shacks and the town fully open and lively. Posters were clear this is the busiest and most crowded the fishing-village vibe gets all year, a real trade-off against the quieter, more tranquil feel December or March offer instead. Despite the crowds, several regulars insisted Punta del Diablo stays notably more laid-back and less commercial than bigger Uruguayan beach towns like Punta del Este even at the height of summer season.
RochaCoastUruguayRegular · January · 1 month ago · Read more on Tripadvisor ↗
Forum posters describe early-to-mid December as a genuinely good window - the town is just starting to wake up for the season (which properly runs mid-December through late February) without yet being crowded, unlike the packed, busy stretch from December 26 through January that posters specifically flag as the peak-crowd period to plan around. Weather-wise, visitors describe a real mix within a single December stay - some rain and wind interspersed with delightful sunny, warm stretches - so a flexible itinerary and layers for a breezy day are standard advice. One practical nuisance mentioned by more than one visitor: mosquitoes are a real presence, so repellent is worth packing regardless of which December week you choose.
Tripadvisor community · December · 1 month ago · Read more on Tripadvisor ↗

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Punta del Diablo climate normals — September

Daytime high17°C / 62°F🙂 cool
Nighttime low12°C / 53°F
Feels like (high)15°C / 59°F
Sea temperature14°C / 57°F🥶 cold sea
Rainfall89 mm / 3.5 in🌧 rainy
Rainy days10 days
Humidity82%💦 very humid
Dew point11°C / 51°F
Sunshine8 h/day
Daylight11.9 h
Wind23 km/h / 14 mph
Air quality (US AQI)37🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Punta del Diablo in September

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Shoulder seasonschool holidays in 2 of the markets that fill it, an ordinary month(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Best months for Punta del Diablo's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Fair weatherPunta del Diablo's weather peaks December–February.

JFMAMJJASOND

Best weatherFair weatherToughest weather

What's on in Punta del Diablo in September

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Off-season

    15 Mar – 30 Nov · usuallyClosures

    Outside the summer most of the restaurants and clubs close and the village goes back to a few hundred people and its fishing boats. The surf is better and there is nobody on the beach.

  • Nature

    Southern right whales

    1 Jul – 31 OctWhale season

    The Rocha coast sits on the right whales' route from July to October, and the rocky points here are one of the places you can pick them up from the shore without a boat. No guarantees on a given day. Source ↗

What's on around the world in September →

Nearby, and something's on

Within 300 km of Punta del Diablo — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Punta del Diablo?

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Punta del Diablo in September — FAQ

Is September a good time to visit Punta del Diablo?
September in Punta del Diablo: cool, rainy, with clean air — a good time to visit. It ranks #9 of 12 months for Punta del Diablo on SeasonMap's comfort score (65/100).
What is the weather like in Punta del Diablo in September?
In September, Punta del Diablo averages a daily high of 16.5°C and a low of 11.5°C, with about 89.4 mm of rain over roughly 9.5 rainy days.
What is the air quality in Punta del Diablo in September?
Punta del Diablo has a mean US Air Quality Index of about 37 in September.

Within 300 km: Montevideo's Dia del Patrimonio around 28 Sep – 12 Oct.