Costa RicaThe weather in September in Marañonal
It's warm in September in Marañonal with an average temperature of 29°C. Temperatures this month range from a low of 28°C to a high of 29°C. At night, you can expect temperatures between 20°C and 21°C.
Looking for sun? September isn’t a good month to be in Marañonal. 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 Marañonal, 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 36°C in 2023, Marañonal reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 23°C in 2014. The extreme nighttime temperatures ranged from a lowest recorded value of 10°C to a highest value of 25°C.
Rainfall amount
In September, there is an average of 301 mm of precipitation, spread over 26 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in September for Marañonal
Click on any day in September to get detailed info about the usual weather on that day in Marañonal. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Marañonal | New York | |
|---|---|---|
| Average temperature | 29°C | 27°C |
| Max. temperature | 29°C | 31°C |
| Min. temperature | 20°C | -5°C |
| Total precipitation | 301 mm | 57 mm |
| Rainy days | 26 days | 9 days |
Start of September
The month of September starts in Marañonal with hot temps, averaging around 29°C during the day and nights around 21°C.
Mid September
By mid-September, daytime temps stay steady at around 29°C, with nights around 21°C. There’s a high chance of precipitation during this time.
End of September
By the end of September, the average daytime temperature in Marañonal is around 29°C, while nighttime temps are about 21°C. There’s a significant chance of many days with precipitation.
UV index
The UV index is a maximum of 9 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 Marañonal runs from June to November.
Check out the climate of Marañonal for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in September in Marañonal, 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 Marañonal
Temperature in September in Marañonal over the years
Precipitation charts
These charts show the average amount of precipitation in September in Marañonal, 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 Marañonal
Total precipitation in September in Marañonal over the years
Daily UV index in September in Marañonal
This chart shows the average daily UV index in September in Marañonal, 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 Marañonal
Have you been to Marañonal in September?
Share your weather experience in September in Marañonal.
Average weather in Marañonal by month
Click on a month below to see detailed weather info for Marañonal. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.