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Costa RicaThe weather in September in Colonia Dos Ríos
It's warm in September in Colonia Dos Ríos with an average temperature of 28°C. Temperatures this month range from a low of 27°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 Colonia Dos Ríos. 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 Colonia Dos Ríos, 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 34°C in 2021, Colonia Dos Ríos 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 16°C to a highest value of 24°C.
Rainfall amount
In September, there is an average of 362 mm of precipitation, spread over 27 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in September for Colonia Dos Ríos
Click on any day in September to get detailed info about the usual weather on that day in Colonia Dos Ríos. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Colonia Dos Ríos | New York | |
|---|---|---|
| Average temperature | 28°C | 27°C |
| Max. temperature | 29°C | 31°C |
| Min. temperature | 20°C | -5°C |
| Total precipitation | 362 mm | 57 mm |
| Rainy days | 27 days | 9 days |
Start of September
The month of September starts in Colonia Dos Ríos with hot temps, averaging around 28°C during the day and nights around 21°C.
Mid September
By mid-September, daytime temps rise to 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 Colonia Dos Ríos is around 29°C, while nighttime temps are about 21°C. There’s a significant chance of many days with precipitation.
Find affordable trips to Colonia Dos Ríos
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 Colonia Dos Ríos runs from June to November.
Check out the climate of Colonia Dos Ríos for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in September in Colonia Dos Ríos, 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 Colonia Dos Ríos
Temperature in September in Colonia Dos Ríos over the years
Precipitation charts
These charts show the average amount of precipitation in September in Colonia Dos Ríos, 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 Colonia Dos Ríos
Total precipitation in September in Colonia Dos Ríos over the years
Daily UV index in September in Colonia Dos Ríos
This chart shows the average daily UV index in September in Colonia Dos Ríos, 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 Colonia Dos Ríos
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Average weather in Colonia Dos Ríos by month
Click on a month below to see detailed weather info for Colonia Dos Ríos. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.