North Puerto Rico Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in North Puerto Rico, Puerto Rico in September.

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San Juan Bayamon Isabela Manati

Planning a getaway to North Puerto Rico, Puerto Rico this September and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What to Expect in North Puerto Rico in September

North Puerto Rico, Puerto Rico is a region in Puerto Rico. September in North Puerto Rico generally has very warm temperatures, with precipitation levels ranging from high to heavy.

Temperatures

You can expect very warm maximum daytime temperatures of around 31°C (88°F) and nighttime temperatures around 25°C (77°F) in San Juan. While the given temperatures for day and night are typical, there may be days that feel warmer. Make sure you're dressed in a way that keeps you cool and comfortable.

For specific regional insights in North Puerto Rico, Puerto Rico, refer to the map provided below.

Precipitation

In September, precipitation varies across different areas. From high rainfall in Dorado with an average of 145 mm (5.7 in) to heavy rainfall in Arecibo with 170 mm (6.7 in). Based on our climate, it is the month with the most precipitation throughout the year in San Juan.

Average sunshine

Plenty of sunshine can be expected in numerous places in September. San Juan typically receives 236 hours of sunlight, making it ideal for those seeking sunny weather.

Explore North Puerto Rico by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Best Places to Visit in North Puerto Rico in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across North Puerto Rico.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in North Puerto Rico

What is the weather like in September for some of the most popular destinations in North Puerto Rico, Puerto Rico?

Temperature range in North Puerto Rico (September)

Precipitation variation in North Puerto Rico (September)

San Juan

In September San Juan generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 25°C (77°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
31°C (88°F)
31°C (88°F)
31°C (88°F)
Min temperature
25°C (77°F)
25°C (77°F)
25°C (77°F)
Monthly sun hours
267 hours
236 hours
228 hours
Monthly rainfall
118 mm (4.6 in)
159 mm (6.3 in)
146 mm (5.7 in)
Monthly rainy days
20 days
18 days
18 days
Weather conditions
tolerable
tolerable
tolerable
Climate in San Juan →

Bayamon

In September Bayamon generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 25°C (77°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
31°C (88°F)
31°C (88°F)
31°C (88°F)
Min temperature
25°C (77°F)
25°C (77°F)
24°C (75°F)
Monthly sun hours
267 hours
236 hours
228 hours
Monthly rainfall
107 mm (4.2 in)
155 mm (6.1 in)
140 mm (5.5 in)
Monthly rainy days
20 days
18 days
18 days
Weather conditions
tolerable
tolerable
tolerable
Climate in Bayamon →

Isabela

In September Isabela generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 26°C (79°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
31°C (88°F)
30°C (86°F)
30°C (86°F)
Min temperature
26°C (79°F)
26°C (79°F)
25°C (77°F)
Monthly rainfall
116 mm (4.6 in)
156 mm (6.1 in)
127 mm (5 in)
Monthly rainy days
19 days
17 days
18 days
Weather conditions
tolerable
tolerable
tolerable
Climate in Isabela →

Manati

In September Manati generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 25°C (77°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
32°C (90°F)
31°C (88°F)
31°C (88°F)
Min temperature
25°C (77°F)
25°C (77°F)
24°C (75°F)
Monthly sun hours
267 hours
236 hours
228 hours
Monthly rainfall
107 mm (4.2 in)
164 mm (6.5 in)
144 mm (5.7 in)
Monthly rainy days
19 days
18 days
18 days
Weather conditions
tolerable
tolerable
tolerable
Climate in Manati →

Dorado

In September Dorado generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 25°C (77°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
32°C (90°F)
31°C (88°F)
31°C (88°F)
Min temperature
25°C (77°F)
25°C (77°F)
25°C (77°F)
Monthly sun hours
267 hours
236 hours
228 hours
Monthly rainfall
96 mm (3.8 in)
145 mm (5.7 in)
130 mm (5.1 in)
Monthly rainy days
20 days
18 days
18 days
Weather conditions
pleasant
tolerable
tolerable
Climate in Dorado →

Is your destination not in the list? Have a look at all destinations in North Puerto Rico, in Puerto Rico.

Popular cities in September

Day & night temperatures, rainfall and average weather in North Puerto Rico in September.

City Weather Day temp Night temp Rainfall
San Juan 31°C (88°F) 25°C (77°F) 159 mm (6.3 in)
Bayamon 31°C (88°F) 25°C (77°F) 155 mm (6.1 in)
Isabela 30°C (86°F) 26°C (79°F) 156 mm (6.1 in)
Manati 31°C (88°F) 25°C (77°F) 164 mm (6.5 in)
Dorado 31°C (88°F) 25°C (77°F) 145 mm (5.7 in)
Carolina 31°C (88°F) 25°C (77°F) 167 mm (6.6 in)

North Puerto Rico weather in September: frequently asked questions

What is the weather like in North Puerto Rico, Puerto Rico in September?

North Puerto Rico, Puerto Rico typically experiences unpleasant weather in September, part of the season. Daytime highs in San Juan average around 31°C (88°F), and temperatures drop to about 25°C (77°F) at night.

What is the average temperature in North Puerto Rico, Puerto Rico in September?

Average temperatures in North Puerto Rico, Puerto Rico during September range from a nighttime low near 25°C (77°F) to a daytime high around 31°C (88°F) in San Juan.

Does North Puerto Rico, Puerto Rico get a lot of rain in September?

San Juan typically receives notable rainfall in September, about 159 mm (6.3 in) on average across North Puerto Rico, Puerto Rico.

Is September a Good Time to Visit North Puerto Rico, Puerto Rico?

In our opinion, September may not be the ideal time to visit North Puerto Rico, Puerto Rico due to the typically tolerable weather in San Juan.

Generally speaking, the best visiting conditions can be found in January, February, March and December offering mostly perfect weather in San Juan. On the other hand, the weather in May, July, August, September, October and November tend to be unpleasant.

Interested in more climate information?

We have much more information about the climate in North Puerto Rico.

Weather and climate has detailed information for every country in the world. Are you going to Puerto Rico? Get detailed historical weather averages for many cities in Puerto Rico.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.