San Marcos in september: average Weather, Temperature and Climate
Weather in San Marcos in september 2026
The weather in San Marcos in september comes from statistical datas on the last years. You can view the weather statistics for all the month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
very bad weather
Weather at 6am
63°F
Moderate rain at times
51% of time
20%
15%
12%
Weather at 12pm
68°F
Moderate rain at times
68% of time
15%
9%
7%
Weather at 6pm
59°F
Heavy rain
65% of time
25%
5%
4%
Weather at 3am
63°F
51%
18%
14%
14%
Evolution of daily average temperature and precipitation in San Marcos in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in San Marcos in september.
The climate of San Marcos in september is very bad
The weather in september in San Marcos is wet (with 27.4in of rainfall over 28 days). The weather's not getting better compared to the previous month since in august there is an average of 24.6in of rainfall over 24 days.
The climate quite comfortable around this city this month. The thermometer averaged maximum of 68°F. The minimum is 61°F. Thus, the mean temperature average in september in San Marcos is 65°F. Note that these seasonal averages are in contrast with those observed in San Marcos in the month of september with a maximum record of 76°F in 2012 and a minimum record of 47°F in 2012.
On this month of september, day length in San Marcos is generally 12:13. The sun rises at 05:56 and sunset is at 18:09.
September: another location in Guatemala?
If you want to go to Guatemala in september, there are destinations with better weather than San Marcos:
In september, Champerico, Tecojate, El Paredon, Esquipulas, Iztapa and Monterrico have good weather.
Finally, Livingston, El Naranjo, Flores, Morales, Puerto Barrios and Puerto San José have a tolerable climate, but better than San Marcos.
Seasonal average climate and temperature of San Marcos in september
Check below seasonal norms These datas are generated from the weather statements of the past years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 65°F | ||||
| Highest temperature | 68°F | ||||
| Lowest temperature | 61°F | ||||
| Highest record temperature | 76°F (2012) | ||||
| Lowest record temperature | 47°F (2012) | ||||
| Number of days at +65°F | 28 day(s) (93%) | ||||
| Wind | |||||
| Wind speed | 7km/h | ||||
| Wind temperature | 61°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 27.4in | ||||
| Number of days with rainfall | 28 day(s) (92%) | ||||
| Record daily rainfall | 3.7in (2009) | ||||
| Other climate data | |||||
| Humidity | 92% | ||||
| Visibility | 8.13km | ||||
| Cloud cover | 47% | ||||
| UV index | 5 | ||||
| Daily sunshine hours | 12 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:56 | ||||
| Time of sunset | 18:09 | ||||
| Length of day | 12:13 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | very bad | ||||
How was the weather last september?
Here is the day by day recorded weather in San Marcos in september 2025:
59°F to 67°F
58°F to 68°F
58°F to 65°F
59°F to 68°F
54°F to 67°F
58°F to 67°F
58°F to 63°F
59°F to 65°F
58°F to 61°F
59°F to 63°F
59°F to 65°F
58°F to 65°F
58°F to 61°F
58°F to 61°F
58°F to 61°F
59°F to 63°F
59°F to 63°F
59°F to 61°F
59°F to 61°F
58°F to 59°F
59°F to 61°F
58°F to 61°F
58°F to 61°F
58°F to 65°F
59°F to 68°F
59°F to 68°F
59°F to 67°F
58°F to 65°F
59°F to 63°F
59°F to 63°F
Map: other cities in Guatemala in september
Cities near San Marcos:
| Quetzaltenango in september | very bad weather |
| Retalhuleu in september | bad weather |
| Ocos in september | good weather |
| Mazatenango in september | bad weather |
| Huehuetenango in september | very bad weather |
| Champerico in september | good weather |
| Santa Cruz del Quiché in september | bad weather |
| Panajachel in september | tolerable weather |
| Tulate in september | bad weather |
| Nentón in september | bad weather |
| El Semillero Barra Nahualate in september | tolerable weather |
| Santa Lucía Cotzumalguapa in september | tolerable weather |
Click over cities on the map for information about the weather in september.
San Marcos
perfect weather
good
tolerable
bad
very bad
Weather data for San Marcos in september:
Weather data for San Marcos for september are derived from an average of the weather forecast since 2009 in San Marcos. There is a margin of error and these forecasts are to be considered as general information only. The weather in San Marcos can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to San Marcos.