Similar Climates › City Pairings › Porto Alegre ≈ Baton Rouge
City Pairings
close match
Porto Alegre, Brazil and Baton Rouge, Louisiana are a close climate match — 7,943 km (4,936 mi) apart. Porto Alegre is Köppen zone Cfa; Baton Rouge is Cfa.
See Porto Alegre on the interactive map →Looking outward from Porto Alegre, the atlas lands on Baton Rouge in the same humid subtropical (Cfa) zone — a distant place whose seasons still rise and fall with this city's. The hemispheres disagree on the calendar, so Porto Alegre’s January is compared with Baton Rouge’s July. From Porto Alegre's point of view, Baton Rouge sits about 7,943 km (4,936 mi) out — far enough to feel like another place, close enough on the numbers to stand in.
For Porto Alegre, Baton Rouge is a close outward match: weather there should feel familiar if you know this city. July by 4°C (Baton Rouge cooler); January means differ by 2°C (Baton Rouge warmer). Rainfall shifts more: Baton Rouge is 15 mm wetter in January.
Sunshine stays close: Baton Rouge at 9.0 h/day on average versus 9.1 h/day in Porto Alegre (January 10.7 h / 11 h, July 7.3 h / 7.1 h). PM2.5 averages stay near each other (11 µg/m³ in Baton Rouge, 10 in Porto Alegre). Humidity: dew point in Baton Rouge runs about 5°C lower in July (6°C vs 11°C), so the air feels drier.
January & July · °C and mm
Porto Alegre is in the southern hemisphere, so its July lines up with Baton Rouge's January — the bars above pair each city's summer and winter, not the calendar month.
Compare Porto Alegre and Baton Rouge month by month on the interactive map →
See Baton Rouge's climate twin on its own page.
On Similar Climates, Baton Rouge, Louisiana is the closest distant match for Porto Alegre, Brazil — scored close, about 7,943 km (4,936 mi) away.
Porto Alegre and Baton Rouge are separated by roughly 7,943 km (4,936 mi) on the great-circle route.
No — they sit in opposite hemispheres, so seasons run about six months apart: Baton Rouge’s July pairs with Porto Alegre’s January in the comparison.
Yes — both are humid subtropical (Cfa).
Porto Alegre has a humid subtropical climate (Cfa). January averages a high of 31°C and a low of 21°C with 135 mm of rain; July averages 20°C / 10°C and 125 mm.
Porto Alegre averages about 11 hours of sunshine a day in January and 7.1 hours in July.
January PM2.5 averages about 9.8 µg/m³ (US AQI 49); July averages 10.6 µg/m³ (US AQI 48).
Other close climate matches for Porto Alegre: New Orleans (fair), Atlanta (fair), Raleigh (fair).
All humid subtropical (Cfa) cities on Similar Climates →
Explore Porto Alegre and Baton Rouge on the interactive map →