Belém vs São Luís: which is sunnier?
🇧🇷 Brazil vs 🇧🇷 Brazil · 490 km apart · long-term climate normals (NASA POWER, 2001–2020)
Belém and São Luís are virtually tied for annual sunshine — about 2,385 vs 2,413 hours a year. São Luís has the higher Sunshine Score in 6 of 12 months; the other 6 are 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
| Belém | São Luís | |
|---|---|---|
| Sunshine hours / year | 2,385 | 2,413 |
| Sunniest month | August (76/100) | October (90/100) |
| Nov–Feb average score | 66/100 | 77/100 |
| Jun–Aug average score | 71/100 | 77/100 |
| Rain / year | 2,568 mm | 1,717 mm |
| Warmest sea | 31°C / 88°F | 31°C / 88°F |
| Peak midday UV | 11 (extreme) | 11 (extreme) |
Belém vs São Luís month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Belém | São Luís | Belém | São Luís | Belém | São Luís | Belém | São Luís | |
| January | 65 | 66 | 29° | 29° | 311 | 191 | 30° | 30° |
| February | 65 | 66 | 28° | 28° | 369 | 247 | 30° | 30° |
| March | 65 | 66 | 28° | 28° | 411 | 322 | 30° | 30° |
| April | 65 | 66 | 28° | 28° | 383 | 357 | 30° | 31° |
| May | 65 | 66 | 28° | 28° | 275 | 238 | 31° | 31° |
| June | 65 | 66 | 29° | 28° | 171 | 149 | 31° | 31° |
| July | 71 | 77 | 29° | 29° | 119 | 88 | 31° | 30° |
| August | 76 | 89 | 31° | 31° | 93 | 23 | 31° | 30° |
| September | 71 | 89 | 33° | 31° | 75 | 23 | 30° | 29° |
| October | 71 | 90 | 33° | 31° | 79 | 15 | 30° | 29° |
| November | 68 | 90 | 33° | 31° | 94 | 17 | 30° | 29° |
| December | 65 | 84 | 31° | 31° | 188 | 47 | 30° | 29° |
The sunnier month by month: Jan even · Feb even · Mar even · Apr even · May even · Jun even · Jul São Luís · Aug São Luís · Sep São Luís · Oct São Luís · Nov São Luís · Dec São Luís.
When to pick which
- November–February: São Luís (average score 77/100 vs 66). Daytime highs are similar (30°C vs 30°C).
- March–May: too close to call — Belém averages 65/100, São Luís 66/100. Daytime highs are similar (28°C vs 28°C).
- June–August: São Luís (average score 77/100 vs 71). Daytime highs are similar (30°C vs 29°C).
- September–October: São Luís (average score 90/100 vs 71). Belém is the warmer, around 33°C daytime highs vs 31°C.
Sea temperature
Both seas peak at 31°C / 88°F. Swimmable water (21°C+): Belém all year, São Luís all year. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Belém weather by month · São Luís weather by month · Best time to visit Brazil.
More comparisons: Belém vs Macapá · Belém vs Marabá · Belém vs Cayenne · São Luís vs Teresina · São Luís vs Marabá · São Luís vs Cruz · all head-to-heads