The temperatures in Fajardo during September are extremely high, between 27°C and hot as 29°C, drinking water regularly is advisable.
You can expect about 3 to 8 days of rain in Fajardo during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Fajardo in September 2025.
If you’re planning to visit Fajardo in the near future, we highly recommend that you review the 14 day weather forecast for Fajardo before you arrive.
Temperatures
29° / 27°
Rainy Days
6
Snowy Days
0
Dry Days
24
Rainfall
138
mm
Sun Hours
11.5
Hrs
