Similar Climates › City Pairings › Fortaleza ≈ San Juan
City Pairings
close match
Fortaleza, Brazil and San Juan, Puerto Rico are a close climate match — 3,900 km (2,423 mi) apart. Fortaleza is Köppen zone As; San Juan is Af.
See Fortaleza on the interactive map →Fortaleza is classed tropical savanna, dry summer (As) while San Juan is tropical rainforest (Af) — different Köppen labels, but January and July still land close enough to pair. They are about 3,900 km (2,423 mi) apart, so San Juan is a reachable stand-in when you want Fortaleza’s weather elsewhere.
It is a close match: day-to-day weather in San Juan should feel familiar if you know Fortaleza. January means differ by 2°C (San Juan cooler); July by 1°C (San Juan warmer). Rainfall shifts more: San Juan is 50 mm wetter in July.
Sunshine stays close: San Juan at 11.4 h/day on average versus 10.7 h/day in Fortaleza (January 10.8 h / 10.6 h, July 12 h / 10.8 h). PM2.5 averages stay near each other (10 µg/m³ in San Juan, 10 in Fortaleza). Dew points differ modestly (January 20°C vs 23°C; July 23°C vs 21°C).
January & July · °C and mm
Compare Fortaleza and San Juan month by month on the interactive map →
See San Juan's climate twin on its own page.
On Similar Climates, San Juan, Puerto Rico is the closest distant match for Fortaleza, Brazil — scored close, about 3,900 km (2,423 mi) away.
Fortaleza and San Juan are separated by roughly 3,900 km (2,423 mi) on the great-circle route.
Yes — both cities are in the same hemisphere, so summer and winter fall in the same calendar months.
No — Fortaleza is tropical savanna, dry summer (As) and San Juan is tropical rainforest (Af), but the January and July numbers still align closely enough to pair.
Fortaleza has a tropical savanna, dry summer climate (As). January averages a high of 31°C and a low of 24°C with 100 mm of rain; July averages 30°C / 23°C and 85 mm.
Fortaleza averages about 10.6 hours of sunshine a day in January and 10.8 hours in July.
January PM2.5 averages about 11.6 µg/m³ (US AQI 54); July averages 9.3 µg/m³ (US AQI 48).
Other close climate matches for Fortaleza: Cebu City (close), Bridgetown (close), Nouméa (fair).
All tropical savanna, dry summer (As) cities on Similar Climates →
Explore Fortaleza and San Juan on the interactive map →