Rio de Janeiro, Brazil · population 71,944 · 38 weather stations within 200 km · records 1781 to 2025
Tres Rios has an average annual daytime high of 27.7°C, based on the 1951 to 1980 baseline. Its warmest month is February, when highs typically reach 30.8°C, and its coldest is July, with overnight lows near 12.3°C.
These figures reflect annual averages, not single-day records. Daily observations are outside this dataset's precision.
Since 1900, Tres Rios's average temperature has risen by +1.8°C. Compared to the earliest station records that begin in 1781, warming totals +1.8°C.
20-year smoothed annual temperature reconstructed from station anomalies. Dashed line: 1951–1980 baseline.
Daytime highs sit within a comfortable 15°C to 26°C range.
Tres Rios's average annual daytime high is 27.7°C, based on the 1951 to 1980 baseline period. The warmest month is February, with highs averaging 30.8°C, and the coldest is July, with lows averaging 12.3°C.
February is the warmest month in Tres Rios, with typical daytime highs of 30.8°C.
2023 is the hottest year on record for Tres Rios, running +2.2°C above the 1951 to 1980 baseline.
Yes. Since 1900, Tres Rios has warmed by roughly +1.8°C.
May to July typically offers the most comfortable daytime highs, in the 15°C to 26°C range.
Baseline period 1951 to 1980. Monthly averages are the mean of station observations weighted by proximity. Warming trend is the 20-year smoothed anomaly against that baseline.