What is the weather like in Lake Atitlán vs San Juan del Sur in September?

In September, Lake Atitlán averages 23°C high / 18°C low with about 369 mm of rain; San Juan del Sur averages 31°C high / 25°C low with about 252 mm.

Lake Atitlán vs San Juan del Sur in September

San Juan del Sur is the better pick in September — 68 vs 60 on SeasonMap's comfort score. San Juan del Sur is sweltering, soaked, clean air, while Lake Atitlán is warm, soaked, muggy air.

Lake Atitlán vs San Juan del Sur — September climate, side by side

	🇬🇹 Lake Atitlán	🇳🇮 San Juan del Sur
Comfort score	60/100 (C)	68/100 (C)
Feels-like high	27°C	37°C
Avg high / low	23° / 18°	31° / 25°
Rainfall	369 mm	252 mm
Rainy days	27	27
Humidity	88%	85%
Air quality (AQI)	58	26

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Lake Atitlán vs San Juan del Sur in September — FAQ

Is September better in Lake Atitlán or San Juan del Sur?: San Juan del Sur is the better pick in September — 68 vs 60 on SeasonMap's comfort score. San Juan del Sur is sweltering, soaked, clean air, while Lake Atitlán is warm, soaked, muggy air.
What is the weather like in Lake Atitlán vs San Juan del Sur in September?: In September, Lake Atitlán averages 23°C high / 18°C low with about 369 mm of rain; San Juan del Sur averages 31°C high / 25°C low with about 252 mm.