Buenos Aires (Ezeiza) vs Montevideo: which is sunnier?
🇦🇷 Argentina vs 🇺🇾 Uruguay · 229 km apart · long-term climate normals (NASA POWER, 2001–2020)
Buenos Aires (Ezeiza) and Montevideo are virtually tied for annual sunshine — about 2,741 vs 2,791 hours a year. Buenos Aires (Ezeiza) has the higher Sunshine Score in 7 of 12 months, Montevideo in 1 (4 within 2 points).
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
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At a glance
| Buenos Aires (Ezeiza) | Montevideo | |
|---|---|---|
| Sunshine hours / year | 2,741 | 2,791 |
| Sunniest month | December (79/100) | December (80/100) |
| Nov–Feb average score | 76/100 | 78/100 |
| Jun–Aug average score | 49/100 | 35/100 |
| Rain / year | 1,067 mm | 1,184 mm |
| Peak midday UV | 12 (extreme) | 12 (extreme) |
Buenos Aires (Ezeiza) vs Montevideo month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Buenos Aires (Ezeiza) | Montevideo | Buenos Aires (Ezeiza) | Montevideo | Buenos Aires (Ezeiza) | Montevideo | |
| January | 76 | 77 | 32° | 26° | 103 | 102 |
| February | 73 | 76 | 30° | 25° | 119 | 106 |
| March | 73 | 74 | 27° | 24° | 118 | 118 |
| April | 78 | 75 | 22° | 20° | 96 | 114 |
| May | 69 | 60 | 18° | 17° | 70 | 84 |
| June | 50 | 39 | 15° | 14° | 48 | 98 |
| July | 41 | 26 | 14° | 12° | 68 | 92 |
| August | 55 | 40 | 16° | 14° | 69 | 89 |
| September | 75 | 45 | 19° | 15° | 75 | 96 |
| October | 75 | 64 | 22° | 18° | 110 | 103 |
| November | 77 | 78 | 26° | 22° | 101 | 96 |
| December | 79 | 80 | 30° | 25° | 90 | 86 |
The sunnier month by month: Jan even · Feb Montevideo · Mar even · Apr Buenos Aires (Ezeiza) · May Buenos Aires (Ezeiza) · Jun Buenos Aires (Ezeiza) · Jul Buenos Aires (Ezeiza) · Aug Buenos Aires (Ezeiza) · Sep Buenos Aires (Ezeiza) · Oct Buenos Aires (Ezeiza) · Nov even · Dec even.
When to pick which
- November–February: too close to call — Buenos Aires (Ezeiza) averages 76/100, Montevideo 78/100. Buenos Aires (Ezeiza) is the warmer, around 30°C daytime highs vs 25°C.
- March–May: Buenos Aires (Ezeiza) (average score 73/100 vs 70). Buenos Aires (Ezeiza) is the warmer, around 22°C daytime highs vs 20°C.
- June–August: Buenos Aires (Ezeiza) (average score 49/100 vs 35). Buenos Aires (Ezeiza) is the warmer, around 15°C daytime highs vs 13°C.
- September–October: Buenos Aires (Ezeiza) (average score 75/100 vs 55). Buenos Aires (Ezeiza) is the warmer, around 21°C daytime highs vs 17°C.
Full month-by-month guides: Buenos Aires (Ezeiza) weather by month · Montevideo weather by month · Best time to visit Argentina.
More comparisons: Buenos Aires (Ezeiza) vs Cordoba · Buenos Aires (Ezeiza) vs Rosario · Montevideo vs Porto Alegre · Montevideo vs Rosario · all head-to-heads