Costa RicaThe weather in September in Puntarenas
It's warm in September in Puntarenas with an average temperature of 29°C. Temperatures this month range from a low of 28°C to a high of 30°C. At night, you can expect temperatures between 21°C and 22°C.
Looking for sun? September isn’t a good month to be in Puntarenas. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Puntarenas, Costa Rica. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 35°C in 2014, Puntarenas reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 23°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 16°C to a highest value of 26°C.
Rainfall amount
In September, there is an average of 393 mm of precipitation, spread over 28 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in September for Puntarenas
Click on any day in September to get detailed info about the usual weather on that day in Puntarenas. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Puntarenas | New York | |
|---|---|---|
| Average temperature | 29°C | 27°C |
| Max. temperature | 30°C | 31°C |
| Min. temperature | 21°C | -5°C |
| Total precipitation | 393 mm | 57 mm |
| Rainy days | 28 days | 9 days |
Start of September
The month of September starts in Puntarenas with hot temps, averaging around 30°C during the day and nights around 22°C.
Mid September
By mid-September, daytime temps stay steady at around 30°C, with nights around 22°C. There’s a high chance of precipitation during this time.
End of September
By the end of September, the average daytime temperature in Puntarenas is around 30°C, while nighttime temps are about 22°C. There’s a significant chance of many days with precipitation.
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UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
The hurricane season in Puntarenas runs from June to November.
Check out the climate of Puntarenas for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in September in Puntarenas, Costa Rica. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Puntarenas
Temperature in September in Puntarenas over the years
Precipitation charts
These charts show the average amount of precipitation in September in Puntarenas, Costa Rica. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Puntarenas
Total precipitation in September in Puntarenas over the years
Daily UV index in September in Puntarenas
This chart shows the average daily UV index in September in Puntarenas, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in Puntarenas
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Average weather in Puntarenas by month
Click on a month below to see detailed weather info for Puntarenas. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.