Colonia del Sacramento weather in March
March in Colonia del Sacramento: warm, rainy, with clean air — an excellent time to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#6 of 12 months in Colonia del Sacramento · #389 of 1413 destinations to visit in March · comfort 83/100 (tier A)
- Days
- 26°C
- Nights
- 18°C
- Wet days
- 9
- Sun
- 9.9 h
- Humidity
- 72%
- Daylight
- 12 h
Traveller notes on Colonia del Sacramento in March
Other months in Colonia del Sacramento
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.
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Colonia del Sacramento climate normals — March
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Colonia del Sacramento in March
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.
Peak crowdsUruguayan Carnaval, Semana de Turismo, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Colonia del Sacramento'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 weatherColonia del Sacramento's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Colonia del Sacramento in March
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Festival
Uruguayan Carnaval
25 Jan – 10 Mar · usuallyCarnivalCrowdedUruguay runs the longest carnival in the world — weeks of neighbourhood tablados and murga stages — and Colonia fills for the two national holidays that close it. Source ↗
- Holiday
Semana de Turismo
20 Mar – 20 Apr · usuallyEaster & Holy WeekCrowdedBook earlyClosuresUruguay's Easter week is a full national holiday and the whole country goes on the road. The ferries from Buenos Aires and the hotels inside the walls are booked out for it. Source ↗
Nearby, and something's on
Within 300 km of Colonia del Sacramento — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Colonia del Sacramento?
Colonia del Sacramento in March — FAQ
- Is March a good time to visit Colonia del Sacramento?
- March in Colonia del Sacramento: warm, rainy, with clean air — an excellent time to visit. It ranks #6 of 12 months for Colonia del Sacramento on SeasonMap's comfort score (83/100).
- What is the weather like in Colonia del Sacramento in March?
- In March, Colonia del Sacramento averages a daily high of 26°C and a low of 17.9°C, with about 119 mm of rain over roughly 8.7 rainy days.
- What is the air quality in Colonia del Sacramento in March?
- Colonia del Sacramento has a mean US Air Quality Index of about 29 in March.
Within 300 km: Montevideo's Uruguayan carnival on 22 Jan – 8 Mar.