São Paulo vs Rio De Janeiro: which is sunnier?
🇧🇷 Brazil vs 🇧🇷 Brazil · 336 km apart · long-term climate normals (NASA POWER, 2001–2020)
Rio De Janeiro is the sunnier overall: about 2,288 hours of sunshine a year to São Paulo's 2,156. Rio De Janeiro has the higher Sunshine Score in 1 of 12 months; the other 11 are within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.


At a glance
| São Paulo | Rio De Janeiro | |
|---|---|---|
| Sunshine hours / year | 2,156 | 2,288 |
| Sunniest month | August (85/100) | August (85/100) |
| Nov–Feb average score | 64/100 | 65/100 |
| Jun–Aug average score | 82/100 | 84/100 |
| Rain / year | 1,381 mm | 1,470 mm |
| Peak midday UV | 10 (very high) | 11 (extreme) |
São Paulo vs Rio De Janeiro month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| São Paulo | Rio De Janeiro | São Paulo | Rio De Janeiro | São Paulo | Rio De Janeiro | |
| January | 64 | 65 | 27° | 29° | 228 | 208 |
| February | 64 | 65 | 27° | 29° | 178 | 152 |
| March | 64 | 65 | 26° | 28° | 153 | 173 |
| April | 75 | 74 | 25° | 27° | 91 | 101 |
| May | 79 | 79 | 22° | 25° | 68 | 71 |
| June | 81 | 83 | 22° | 25° | 55 | 49 |
| July | 80 | 84 | 22° | 25° | 62 | 45 |
| August | 85 | 85 | 23° | 25° | 37 | 42 |
| September | 79 | 80 | 25° | 26° | 68 | 69 |
| October | 72 | 72 | 26° | 27° | 106 | 108 |
| November | 64 | 65 | 26° | 27° | 151 | 220 |
| December | 64 | 65 | 27° | 28° | 184 | 232 |
The sunnier month by month: Jan even · Feb even · Mar even · Apr even · May even · Jun even · Jul Rio De Janeiro · Aug even · Sep even · Oct even · Nov even · Dec even.
When to pick which
- November–February: too close to call — São Paulo averages 64/100, Rio De Janeiro 65/100. Daytime highs are similar (27°C vs 28°C).
- March–May: too close to call — São Paulo averages 73/100, Rio De Janeiro 73/100. Rio De Janeiro is the warmer, around 27°C daytime highs vs 24°C.
- June–August: too close to call — São Paulo averages 82/100, Rio De Janeiro 84/100. Rio De Janeiro is the warmer, around 25°C daytime highs vs 22°C.
- September–October: too close to call — São Paulo averages 76/100, Rio De Janeiro 76/100. Daytime highs are similar (26°C vs 27°C).
Full month-by-month guides: São Paulo weather by month · Rio De Janeiro weather by month · Best time to visit Brazil.
More comparisons: São Paulo vs Campinas · São Paulo vs Ribeirão Preto · Rio De Janeiro vs Belo Horizonte · Rio De Janeiro vs Campinas · Rio De Janeiro vs Vitória · all head-to-heads