Montevideo weather by month & the best time to visit
Uruguay · coastal city break · humid subtropical climate
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The best time to visit Montevideo is December — its sunniest month (Sunshine Score 80/100), with November and January close behind. Montevideo averages about 2,791 hours of sunshine a year. Daytime highs around 25°C / 77°F and roughly 86 mm of rain in December.
When is the best time to visit Montevideo?
For sunshine, the best time to visit Montevideo is December, then November and January. The dullest month is July (26/100, 92 mm of rain). The full month-by-month picture is in the table below.
How sunny is Montevideo?
Montevideo gets a lot of sun: around 2,791 hours a year. 54 Sunshine Score points separate December (80) from July (26), so the month you pick matters. Montevideo is the sunniest of the 3 destinations tracked in Uruguay. The year's 1,184 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 77 | 26° / 79°F | 20° / 68°F | 102 mm | 12 | 25° / 77°F |
| February | 76 | 25° / 77°F | 20° / 68°F | 106 mm | 11 | 25° / 77°F |
| March | 74 | 24° / 75°F | 18° / 64°F | 118 mm | 9 | 23° / 73°F |
| April | 75 | 20° / 68°F | 16° / 61°F | 114 mm | 6 | 20° / 68°F |
| May | 60 | 17° / 63°F | 12° / 54°F | 84 mm | 3 | 14° / 57°F |
| June | 39 | 14° / 57°F | 9° / 48°F | 98 mm | 2 | 13° / 55°F |
| July | 26 | 12° / 54°F | 8° / 46°F | 92 mm | 2 | 10° / 50°F |
| August | 40 | 14° / 57°F | 9° / 48°F | 89 mm | 4 | 11° / 52°F |
| September | 45 | 15° / 59°F | 10° / 50°F | 96 mm | 6 | 14° / 57°F |
| October | 64 | 18° / 64°F | 13° / 55°F | 103 mm | 8 | 19° / 66°F |
| November | 78 | 22° / 72°F | 16° / 61°F | 96 mm | 10 | 22° / 72°F |
| December | 80 | 25° / 77°F | 18° / 64°F | 86 mm | 12 | 23° / 73°F |
Sea temperature in Montevideo by month
The sea off Montevideo is warmest in January at around 25°C / 77°F, and coolest in July at 10°C / 50°F. The water sits at a comfortable 21°C or warmer roughly 5 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Head-to-head
How Montevideo compares month by month: Montevideo vs Buenos Aires (Ezeiza) · Montevideo vs Porto Alegre · Montevideo vs Rosario · all comparisons
Montevideo: questions and answers
What kind of destination is Montevideo?
Montevideo is a coastal city break in Uruguay with a humid subtropical climate — the sea reaches 25°C at its warmest and is swimmable (21°C+) about 5 months a year.
How many hours of sunshine does Montevideo get a year?
Montevideo gets about 2,791 hours of sunshine a year, at its best around December.
When is the best time to visit Montevideo?
The sunniest time to visit Montevideo is December, when the Sunshine Score peaks at 80/100 (with November and January close behind). Expect daytime highs around 25°C / 77°F.
What is the least sunny month in Montevideo?
July is the least sunny month in Montevideo, scoring 26/100 with about 92 mm of rain.
Is Montevideo the sunniest place in Uruguay?
Yes — with about 2,791 hours of sunshine a year, Montevideo has the most annual sunshine of the 3 Uruguay destinations tracked by Sunshine Atlas.
What is the sea temperature in Montevideo?
The sea in Montevideo ranges from about 10°C (July) to 25°C (January). Month-by-month sea temperatures are on this page.
How strong is the sun in Montevideo?
The typical midday UV index in Montevideo peaks around 12 (extreme) in January, easing to about 2 (low) in June. Month-by-month midday UV values are in the UV column of the table on this page.
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