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Weather & Climate
Viana, Maranhão, Brazil
Overview
Available climate summaries for Viana. Origins and reference periods are unverified; stored values may include AI estimates. Treat these as estimates until independently verified.
Key Metrics
Annual Avg
27.5°C
Summer Avg
27.5°C
Winter Avg
26.4°C
Record High
39.6°C
Record Low
19.6°C
Annual Precipitation
1704.6 mm
Avg Humidity
79%
Summer Humidity
78%
Winter Humidity
83%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 38.4° | 27.3° | 21.3° | 201.8 | 79% | 151 | 13.9 |
| Feb | 35.6° | 26.3° | 21.7° | 266.6 | 87% | 137 | 12.5 |
| Mar | 35.7° | 26.1° | 21.6° | 323.9 | 90% | 152 | 11.3 |
| Apr | 31.7° | 26° | 21.8° | 336 | 92% | 147 | 10.4 |
| May | 31.4° | 26.2° | 21.8° | 220.4 | 91% | 155 | 10.5 |
| Jun | 33.2° | 25.9° | 19.6° | 122.1 | 89% | 155 | 11.3 |
| Jul | 36.4° | 25.9° | 19.6° | 64.8 | 86% | 168 | 12.1 |
| Aug | 37.6° | 27.4° | 19.6° | 21.4 | 75% | 179 | 13.4 |
| Sep | 38.8° | 29.4° | 20.9° | 21.9 | 63% | 178 | 14.2 |
| Oct | 39.2° | 30.1° | 22.2° | 17.4 | 60% | 177 | 15.2 |
| Nov | 39.5° | 29.9° | 22.5° | 35.4 | 62% | 159 | 15.6 |
| Dec | 39.6° | 29° | 21.9° | 72.9 | 68% | 153 | 14.5 |
Data sources
Estimates and unverified origins
Oyster List climate data - Climate origins are unverified. Available methods include historical APIs and AI estimates; stored rows do not identify the original dataset, reference period, or model for each value. Treat these summaries as estimates until independently verified. Record updated 2026-03-21.
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