Colonia del Sacramento weather by month
The best time to visit Colonia del Sacramento is April, October and November — 91/100 in November, 25°C and 8 rainy days. The best season is spring, September to November (88/100 on average).
The worst month is July at 75/100 — cool, a little rain, clean air. See July →
Updated September 2026 · climate normals from ERA5 reanalysis
Planning the wider trip? Best time to visit Uruguay →
Best season: September to November (88/100 on average) · worst July (75/100)
- Days
- 25°C
- Nights
- 16°C
- Wet days
- 8
- Sun
- 11.4 h
- Humidity
- 66%
- Daylight
- 14 h
Colonia del Sacramento, month by month
Comfort score out of 100 for the kind of trip Colonia del Sacramento is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.
What's on in Colonia del Sacramento through the year
Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.
Crowds in Colonia del Sacramento in November
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.
Busyone of its best months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Traveller notes on Colonia del Sacramento
What people who have been say about the place — the year-round notes first, then month by month.
Colonia's own forum doesn't have much May-specific weather chatter, but one useful data point came up in a beach thread: swimming season here doesn't really start until around Christmas, which confirms May sits well into the cooler off-season. The destination's own climate record fills in the rest - mild autumn days in the high teens C, cool nights, and only occasional rain. It's actually a pleasant month for what Colonia is really known for: wandering the cobblestone, Portuguese-influenced old town without summer crowds or heat.
Forum posters are candid that November weather in Uruguay isn't a guaranteed warm, sunny stretch - it's generally decent for touring but shouldn't be assumed reliably nice. For the town itself, posters consistently praise the UNESCO-listed historic quarter (founded 1680) for its Portuguese-influenced architecture and winding streets, often compared to old Lisbon, calling it clean, safe, and notably friendly and slow-paced. The fast ferry from Buenos Aires (as short as 15 minutes on some routes) makes it an easy day trip or overnight, and posters recommend an early start and staying at one of the town's posadas to properly soak in the pace rather than rushing through on a single-day visit.
Add your own note from Colonia del Sacramento's card on the map.