Guatemala City in September usually sees fair weather conditions, with an average daily high temperature of +77°F and roughly 0 sunny days. However, you should prepare for about 21 rainy days with an average precipitation of 123 mm. The weather is changeable so pack for every eventuality. Search flightsin one click on Avionero.
Average weather
☀️
+77°F
Avg. max. temperature
+54°F
Min.
+86°F
Max.
123 mm
Total precipitation
76%
Avg. humidity
2 m/s
Avg. wind
0 ☀️
Sunny Days
3 ⛅️
Cloudy
21 🌦
Rainy
Our opinion: Guatemala City has OK weather in September.
Average temperature in Guatemala City in September
Here are the expected maximum, average and minimum temperatures in Guatemala City for September based on the historical data.
Last Year
Historical Data
The temperature in September is +82°F on average, with a range between a maximum of +86°F during the day and a minimum of +59°F at night.
The average maximum temperature goes down 20% by the end of the month, compared with the beginning of the month, from +84°F to +79°F.
Is Guatemala City warm or cold in September?
Guatemala City is typically warm in September.
Maximum temperatures go down compared to the previous month from +79°F to +77°F. The minimum temperature also goes up from +59°F to +59°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how September is compared to other months in Guatemala City:
Climate in Guatemala City in September
Guatemala City weather looks like this, on average, in September and the surrounding months.
August
September
October
Avg. temperature
+79°F
+77°F
+75°F
Min. temperature
+54°F
+54°F
+48°F
Max. temperature
+86°F
+86°F
+84°F
Rainfall
69 mm
123 mm
81 mm
Wind
3 m/s
2 m/s
3 m/s
Humidity
72%
76%
76%
Air pressure
1014 HPa
1013 HPa
1013 HPa
Sunny days
0
0
1
Cloudy days
6
3
10
Rainy days
18
21
17
Snowy days
0
0
0
September typically has worse weather conditions compared to August.It’s getting colder in September. From +79°F in the day, the average maximum temperature lowers to +77°F.Prepare for more rain. Average rainfall goes from 69 mm to 123 mm.Humidity rises from 72% to 76%.Winds are calmer in comparison to August, going down from 3 m/s to 2 m/s on average.The amount of sunny days stay about the same, averaging 0 sunny days during the month.
October brings much the same weather, it remains ok.
Wind speed in Guatemala City in September based on historical data.
Last Year
Historical Data
The average wind speed is 4 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Guatemala City is gradually decreasing during September, going from 4 m/s to 3 m/s over the course of the month.
Rain
Amount of rainfall in mm during September in Guatemala City based on historical data.
Last Year
Historical Data
A chance of rain on a typical day in September stands at 63%, leading to total precipitation of around 71 mm. The maximum amount of rainfall per day is around 18 mm, which is considered light rain.September is a pretty wet month with over 19 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
September is one of the rainiest months in Guatemala City, here is a comparison with other months, total mm:
Guatemala City wettest month is June, where a typical day has a 67% chance of precipitation and 126 mm of rainfall per day. February, on the other hand, is the driest month with a mere 10% chance of precipitation and 2 mm of rainfall per day.
How was the weather last September in Guatemala City?
This is the weather in Guatemala City in September 2023:
1 September
☁️
+85°F
2 September
🌧️
+83°F
3 September
☁️
+82°F
4 September
☁️
+81°F
5 September
☁️
+81°F
6 September
☁️
+80°F
7 September
☁️
+84°F
8 September
☁️
+83°F
9 September
☁️
+80°F
10 September
☁️
+82°F
11 September
☁️
+81°F
12 September
☁️
+84°F
13 September
☁️
+81°F
14 September
☁️
+82°F
15 September
☁️
+81°F
16 September
☁️
+83°F
17 September
☁️
+82°F
18 September
☁️
+81°F
19 September
☁️
+82°F
20 September
☀️
+82°F
21 September
☁️
+82°F
22 September
☁️
+82°F
23 September
☀️
+86°F
24 September
☁️
+81°F
25 September
🌧️
+77°F
26 September
☁️
+82°F
27 September
☁️
+82°F
28 September
☁️
+80°F
29 September
☁️
+80°F
30 September
☁️
+80°F
In September 2023 Guatemala City had 2 sunny days, 26 cloudy days, and 2 rainy days. The average maximum temperature was +82°F, with an absolute maximum of +86°F and a minimum of +77°F. The average humidity was 69%, with a maximum of 100% and a minimum of 25%. The average wind speed was 4 m/s, with a maximum of 8 m/s and a minimum of 0 m/s.
Are you planning a trip in September?
Climate Change Over the Years
This is how Guatemala City climate has changed over the last 43 years.
The climate in Guatemala City in September has not changed that much over the last 43 years.
The average temperature was the lowest in 1979 (+75°F) and the highest in 2019 (+80°F). The driest year was 1986 with only 265 mm of rainfall, and the wettest year was 2022 with 1213 mm.
FAQ
Frequently asked questions about the weather in Guatemala City in September:
Is September a good time to visit Guatemala City?
It’s always a good time to visit Guatemala City, but the weather is changeable in September, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Guatemala City in September?
September is warm in Guatemala City. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.
Is Guatemala City rainy in September?
Guatemala City is often rainy in September. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Guatemala City in September?
Usually, it’s not very sunny in Guatemala City in September, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
For this page, we’ve looked at the typical weather in Guatemala City, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.