Temperature
Warm by day, mild at night.
Blumenau is usually most comfortable in April, May, July, and August. Typical daytime highs range from 70–85°F across the year. Rain is frequent in many months.

Warm by day, mild at night.
It rains on most days. About 18 wet days, more than in most months.
Cloudier spells limit sunshine.
Warm days, with humid periods.
In November, afternoons feel about 80° and nights feel near 68°.
Mostly cloudy skies this month.
Calm winds are typical in November.
November late afternoons are around 77°F, easing to about 70°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 85 | 70 | 9.2 | 23 | 9.7 | 84 |
| Feb | 85 | 70 | 8.5 | 20 | 9.6 | 84 |
| Mar | 83 | 68 | 5.9 | 20 | 9.2 | 85 |
| Apr | 79 | 64 | 3.7 | 12 | 8.6 | 85 |
| May | 74 | 59 | 4.3 | 11 | 7.6 | 85 |
| Jun | 71 | 56 | 4.2 | 10 | 6.9 | 86 |
| Jul | 70 | 54 | 3.8 | 10 | 7.1 | 85 |
| Aug | 72 | 56 | 3.8 | 10 | 7.6 | 85 |
| Sep | 73 | 59 | 6.2 | 13 | 7.0 | 85 |
| Oct | 76 | 62 | 5.9 | 17 | 7.1 | 85 |
| Nov | 79 | 65 | 6.0 | 18 | 8.7 | 83 |
| Dec | 83 | 68 | 6.9 | 19 | 9.6 | 82 |
Similar climates
Want a side-by-side climate view? Compare Blumenau with Buenos Aires.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 27, 2026
Data & methodology