Best time to visit Montevideo
Uruguay · Americas · Subtropical climate · Southern hemisphere
August
August is the canonical best window — average daytime highs of 14 °C and 80 mm of rain across those months. The wettest month is April (116 mm) and the driest is August (80 mm).
1 month · Winter
Good · 78/100
Mild conditions with moderate annual rainfall (1146 mm); the canonical best window is August.
- Recommended window
- 1 month
- Canonical best months
- Climate zone
- Subtropical
- NASA POWER normals
- Dominant season
- Winter
- Derived
- Climate score
- Good · 78/100
- Real field
- Typical stay
- 3 days
- Real field
Climate year
● recommended window · fixed scales −15–40 °C · 0–800 mm · 0–31 rain days · use ← → to change month
August
Winter · In recommended window
Favourable month (R1–R7) inside the canonical best-time window
- High / Low
- 14.1° / 9.3°C
- Mean
- 11.4°C
- Rain
- 79.8 mm
- Rain days (≥1 mm)
- 0.3
- Daylight
- 10.8 h
When to go
Go in August
August is the canonical best window — average daytime highs of 14 °C and 80 mm of rain across those months. The wettest month is April (116 mm) and the driest is August (80 mm).
Mild conditions with moderate annual rainfall (1146 mm); the canonical best window is August.
Read the full Montevideo destination guide- Best
- Aug1/12
- Good
- —0/12
- Mixed
- Jan · Feb · Mar · Apr · May · Jun · Jul · Sep · Oct · Nov · Dec11/12
- Avoid
- —0/12
Distribution across the twelve months
Why these months?
Montevideo's canonical best-time window is August — 1 month of the year. That window is derived from the R1–R7 classification of NASA POWER climate normals, and it is the primary signal behind the verdicts above.
Inside the window, NASA POWER climate normals for a subtropical climate in the southern hemisphere read Mild with Low precipitation — 1991–2020 monthly averages, not a forecast. Outside it, month-by- month verdicts come from the R1–R7 climate classification over the same dataset.
The other 11 months sit outside the window. No month reads as least favourable on the pattern.
Signals — Best: R1–R7 favourable months · Good / Mixed: R1–R7 workable · Avoid: R1–R7 challenging · climate normals: NASA POWER 1991–2020
Read a single month
● marks a month inside the recommended window · use ← → to change month
August
Winter · In recommended window
- Temperature
- 14.1° / 9.3°C
- Precipitation
- 79.8 mm
- Rain days (≥1 mm)
- 0.3
- Daylight
- 10.8 h
Avg high 14.1°C / avg low 9.3°C · 79.8 mm precipitation over 0.3 days with ≥1 mm rain.
Temperature, precipitation and rain days are 1991–2020 NASA POWER climate normals; daylight hours are astronomical. The verdict comes from the R1–R7 climate classification.
All twelve months
Twelve months of NASA POWER climate normals for Montevideo (1991–2020 average), side by side with the travel verdict: whether a month is Favourable, Workable or Challenging (R1–R7 classification), and whether it falls inside the canonical best-time window. Historical climate normals — not a forecast.
| Month | Season | Temperature | Precipitation | Month readout | Verdict |
|---|---|---|---|---|---|
| January | Summer | 26.1° / 20.0°C | 96.1 mm · 0.3 rain days | Avg high 26.1°C / avg low 20.0°C · 96.1 mm precipitation over 0.3 days with ≥1 mm rain. | Mixed |
| February | Summer | 25.5° / 20.1°C | 97.2 mm · 0.3 rain days | Avg high 25.5°C / avg low 20.1°C · 97.2 mm precipitation over 0.3 days with ≥1 mm rain. | Mixed |
| March | Autumn | 24.0° / 18.8°C | 105.2 mm · 0.3 rain days | Avg high 24.0°C / avg low 18.8°C · 105.2 mm precipitation over 0.3 days with ≥1 mm rain. | Mixed |
| April | Autumn | 20.5° / 15.9°C | 116.5 mm · 0.3 rain days | Avg high 20.5°C / avg low 15.9°C · 116.5 mm precipitation over 0.3 days with ≥1 mm rain. | Mixed |
| May | Autumn | 17.0° / 12.9°C | 88.8 mm · 0.3 rain days | Avg high 17.0°C / avg low 12.9°C · 88.8 mm precipitation over 0.3 days with ≥1 mm rain. | Mixed |
| June | Winter | 13.9° / 9.9°C | 92.3 mm · 0.3 rain days | Avg high 13.9°C / avg low 9.9°C · 92.3 mm precipitation over 0.3 days with ≥1 mm rain. | Mixed |
| July | Winter | 12.5° / 8.3°C | 89.7 mm · 0.3 rain days | Avg high 12.5°C / avg low 8.3°C · 89.7 mm precipitation over 0.3 days with ≥1 mm rain. | Mixed |
| Augustinside the recommended window; | Winter | 14.1° / 9.3°C | 79.8 mm · 0.3 rain days | Avg high 14.1°C / avg low 9.3°C · 79.8 mm precipitation over 0.3 days with ≥1 mm rain. | Best |
| September | Spring | 15.5° / 10.5°C | 88.2 mm · 0.3 rain days | Avg high 15.5°C / avg low 10.5°C · 88.2 mm precipitation over 0.3 days with ≥1 mm rain. | Mixed |
| October | Spring | 18.5° / 13.1°C | 101.3 mm · 0.3 rain days | Avg high 18.5°C / avg low 13.1°C · 101.3 mm precipitation over 0.3 days with ≥1 mm rain. | Mixed |
| November | Spring | 21.6° / 15.6°C | 97.9 mm · 0.3 rain days | Avg high 21.6°C / avg low 15.6°C · 97.9 mm precipitation over 0.3 days with ≥1 mm rain. | Mixed |
| December | Summer | 24.6° / 18.1°C | 93.5 mm · 0.3 rain days | Avg high 24.6°C / avg low 18.1°C · 93.5 mm precipitation over 0.3 days with ≥1 mm rain. | Mixed |
● marks a month inside the canonical best-time window
- Best
- Favourable month (R1–R7) inside the canonical best-time window
- Good
- Workable month (R1–R7) — a viable alternative outside the stated window
- Mixed
- Transitional month — workable with a flexible plan
- Avoid
- Challenging month (R1–R7) — least favourable climate pattern
Method: temperature and precipitation are 1991–2020 climate normals (monthly means); verdicts combine the R1–R7 climate classification with the canonical best-time window. No daily forecast, crowd level or price index is claimed.
Climate data source: NASA POWER (NASA Langley Research Center) · Climatology / Daily / Monthly point APIs · 1991–2020 · UTC+00:00 daily boundary.
Season by season
The recommended window (August) runs through Winter. Below, each season is read on two axes: the NASA POWER climate normals for Montevideo's 1991–2020 record, and how much of it sits inside the canonical best-time window.
Spring
Sep · Oct · Nov
Mild / Warm · Low / Moderate precipitation
Avg high 15.5°C / avg low 10.5°C · 88.2 mm precipitation over 0.3 days with ≥1 mm rain.
Outside the recommended window
Summer
Jan · Feb · Dec
Warm · Low precipitation
Avg high 26.1°C / avg low 20.0°C · 96.1 mm precipitation over 0.3 days with ≥1 mm rain.
Outside the recommended window
Autumn
Mar · Apr · May
Mild / Warm · Low / Moderate precipitation
Avg high 24.0°C / avg low 18.8°C · 105.2 mm precipitation over 0.3 days with ≥1 mm rain.
Outside the recommended window
Winter
Jun · Jul · Aug
Mild · Low precipitation
Avg high 13.9°C / avg low 9.9°C · 92.3 mm precipitation over 0.3 days with ≥1 mm rain.
1 of 3 months inside the recommended window
Temperature and precipitation are 1991–2020 NASA POWER climate normals (qualitative buckets are derived from the monthly values); the season names follow the destination's hemisphere, and daylight hours are astronomical.
Trip shape
- Typical stay
- 3 days
- Daily budget
- 85 UYU
- Currency
- UYU $U
- Time zone
- America/Montevideo
- Airport
- MVD · Montevideo
- Travel style
- Relaxed
- Region
- Americas
Frequently asked questions
What are the best months to visit Montevideo?
The best months to visit Montevideo are August, based on the R1–R7 classification of NASA POWER 1991–2020 climate normals. August is the canonical best window — average daytime highs of 14 °C and 80 mm of rain across those months. The wettest month is April (116 mm) and the driest is August (80 mm).
What is the weather like in Montevideo?
Montevideo is rated Good for climate, with a score of 78/100. Mild conditions with moderate annual rainfall (1146 mm); the canonical best window is August.
How many days do you need in Montevideo?
We recommend 3 days in Montevideo, ideally placed inside the recommended window of August.
Plan a August trip to Montevideo
The recommended window is August. The planner opens with Montevideo prefilled — set your dates inside that window and build the route around it.
Plan around this window
Climate data source: NASA POWER (NASA Langley Research Center) · Climatology / Daily / Monthly point APIs · 1991–2020 · accessed 2026-09-13 · dataset nasa-power-canonical-production-v1.2-wave2