Temperatures in September
It's cool to moderate in September in San Carlos with an average temperature of 18°C. Temperatures this month range from a low of 15°C to a high of 20°C. At night, you can expect temperatures between 8°C and 11°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for San Carlos in September. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of September
The month of September starts in San Carlos with cool temperatures, averaging around 17°C during the day and nights close to 10°C. Plenty of days with a chance of precipitation.
Mid-September
By mid-September, the average daytime temperature rises to around 18°C, with nights close to 10°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of September
By the end of September, the average daytime temperature in San Carlos will be around 19°C, with nights close to 11°C. A shower might show up, but overall the weather will be dry and sunny.
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Precipitation in September
In September, there is an average of 118 mm of precipitation, spread over 8 days. The wind speed is around 5 Bft, mostly coming from the Southeast.
The average precipitation chance is 27% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for San Carlos. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
San Carlos in September |
London | ||
|---|---|---|---|
 Average Temperature |
18°C | 20°C | |
 High Temp |
20°C | 22°C | |
| Low Temp |
15°C | 17°C | |
 Total Precipitation |
118 mm | 44 mm | |
| Rainy Days |
8 days | 8 days | |
August
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.
Is September a good time to visit San Carlos?
After some sun? Then September isn’t the best time to be in San Carlos. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for San Carlos in September
With 30°C, San Carlos hit the highest temperature in the last 10 years in September 2018. The lowest daytime temperature in this month was 9°C in 2019. The extreme night temperatures ranged from a low of 2°C to a high of 17°C.
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Daily Temperature in September in San Carlos
This chart shows the average daily temperatures, both day and night, for each day in September in San Carlos, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in San Carlos
The chart below shows the average daily precipitation in September for San Carlos, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 8 days of rain in San Carlos.
Daily UV Index in September in San Carlos
This chart shows the average daily UV index in September in San Carlos, 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.
Temperature in September in San Carlos Over the Years
This chart shows the average temperature in September in San Carlos, measured in degrees Celsius, over the past years.
Total Precipitation in September in San Carlos Over the Years
This chart shows the average precipitation in September in San Carlos, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for San Carlos
Click on a specific day in September for detailed info on the typical weather on that day in San Carlos. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in San Carlos
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Average Weather in San Carlos by Month
Click on a month below to see detailed weather info for San Carlos. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of San Carlos for all months at once
