Average weather for San Marcos in October
It's warm in October in San Marcos with an average temperature of 24°C. Temperatures this month range from a low of 23°C to a high of 25°C. At night, you can expect temperatures between 11°C and 14°C.
Start of October
The month of October starts in San Marcos with warm temps, averaging around 25°C during the day and nights around 13°C. There are plenty of days with a good chance of precipitation.
Mid October
By mid-October, daytime temps drop to around 24°C, with nights around 13°C. There’s a high chance of precipitation during this time.
End of October
By the end of October, the average daytime temperature in San Marcos is around 24°C, while nighttime temps are about 13°C. There’s a significant chance of many days with precipitation.
In October, there is an average of 295 mm of precipitation, spread over 28 days. The wind speed is around 4 Bft, mostly coming from the East.
San Marcos in October |
New York | ||
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24°C | 21°C | |
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25°C | 26°C | |
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23°C | -5°C | |
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295 mm | 119 mm | |
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28 days | 13 days |
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 October a good time to visit San Marcos?
Looking for sun? October isn’t a good month to be in San Marcos. The temperature is nice, but there’s too much chance of rain.
The hurricane season in San Marcos runs from June to November.
Temperature records
With 34°C in 2019, San Marcos reached the highest temperature in October over the past 10 years. The lowest daytime temperature in this month was 16°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 4°C to a highest value of 19°C.
Check out the climate of San Marcos for all months and discover the best travel time
Daily Temperature in October in San Marcos
This chart shows the average daily high and low temperatures in October for San Marcos, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in October in San Marcos
The chart below shows the average daily precipitation in October for San Marcos, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed 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 it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for October, you can expect about 28 days of precipitation in San Marcos.
Daily UV index in October in San Marcos
This chart shows the average daily UV index in October in San Marcos, 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 October in San Marcos over the years
This chart shows the average temperature in October in San Marcos, measured in degrees Celsius, over the past few years.
Total precipitation in October in San Marcos over the years
This chart shows the average precipitation in October in San Marcos, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in October for San Marcos
Click on any day in October to get detailed info about the usual weather on that day in San Marcos. Check out the historical temperatures and precipitation over the past 10 years on this day.































Weather experiences in October in San Marcos
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Average weather in San Marcos by month
Click on a month below to see detailed weather info for San Marcos. 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 Marcos for all months at once