Daytime highs, nighttime lows and the warmest cities in North Puerto Rico, Puerto Rico this September.
North Puerto Rico, Puerto Rico, a region in Puerto Rico, typically experiences very warm weather in September, with maximum daytime temperatures around 31°C (88°F) and nighttime temperatures around 25°C (77°F) in San Juan.
Curious about the September temperatures in the prime spots of North Puerto Rico? Navigate the map below and tap on a destination dot for more detailed stats.
Check the conditions for any month of the year.
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across North Puerto Rico.
Marker color shows the average daytime high temperature in September: blue is cold, red is hot.
San Juan averages a daytime high of 31°C (88°F) in September, which is very high for North Puerto Rico, Puerto Rico.
Nighttime temperatures in San Juan typically drop to around 25°C (77°F) in September.
The weather is predominantly sunny, with an estimated total of around 236 hours of sunshine in San Juan. This means many sunny days, which creates a cheerful atmosphere during this month.
The water temperature averages approximately 29°C (84°F) in San Juan this month, warm, bath-like water that stays very comfortable for a long swim.
We have much more information about the climate in North Puerto Rico.
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