Temperatures in September
It's warm in September in Santiago Atitlán with an average temperature of 24°C. Temperatures this month range from a low of 22°C to a high of 26°C. At night, you can expect temperatures between 11°C and 13°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Santiago Atitlán 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 Santiago Atitlán with warm temperatures, averaging around 24°C during the day and nights close to 13°C. Plenty of days with a chance of precipitation.
Mid-September
By mid-September, the average daytime temperature stays the same at 24°C, with nights close to 13°C. The chance of precipitation is high during this period.
End of September
By the end of September, the average daytime temperature in Santiago Atitlán will be around 24°C, with nights close to 13°C. There’s a significant chance of many days with precipitation.
Discover cheap trips to Santiago Atitlán 
Precipitation in September
In September, there is an average of 433 mm of precipitation, spread over 29 days. The wind speed is around 4 Bft, mostly coming from the East.
The average precipitation chance this month is over 98%, so expect nearly daily rain in September.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Santiago Atitlán. 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.
Santiago Atitlán in September |
London | ||
|---|---|---|---|
 Average Temperature |
24°C | 20°C | |
 High Temp |
26°C | 22°C | |
| Low Temp |
22°C | 17°C | |
 Total Precipitation |
433 mm | 44 mm | |
| Rainy Days |
29 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 Santiago Atitlán?
After some sun? Then September isn’t the best time to be in Santiago Atitlán. The temperature is pleasant, but there’s too much chance of rain this month.
The hurricane season in Santiago Atitlán runs from June to November.
Temperature records for Santiago Atitlán in September
With 51°C, Santiago Atitlán hit the highest temperature in the last 10 years in September 2014. The lowest daytime temperature in this month was 17°C in 2019. The extreme night temperatures ranged from a low of 6°C to a high of 18°C.
Check out the climate of Santiago Atitlán for all months and discover the best travel time
Plan your next holiday
Don’t miss the best holiday deals for Santiago Atitlán and see what our partners have for you.
Daily Temperature in September in Santiago Atitlán
This chart shows the average daily temperatures, both day and night, for each day in September in Santiago Atitlán, 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 Santiago Atitlán
The chart below shows the average daily precipitation in September for Santiago Atitlán, 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 29 days of rain in Santiago Atitlán.
Daily UV Index in September in Santiago Atitlán
This chart shows the average daily UV index in September in Santiago Atitlán, 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 Santiago Atitlán Over the Years
This chart shows the average temperature in September in Santiago Atitlán, measured in degrees Celsius, over the past years.
Total Precipitation in September in Santiago Atitlán Over the Years
This chart shows the average precipitation in September in Santiago Atitlán, 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 Santiago Atitlán
Click on a specific day in September for detailed info on the typical weather on that day in Santiago Atitlán. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Santiago Atitlán
Have you been to Santiago Atitlán in September?
Share your weather experience in September in Santiago Atitlán.
Average Weather in Santiago Atitlán by Month
Click on a month below to see detailed weather info for Santiago Atitlán. 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 Santiago Atitlán for all months at once
