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Quito in September: Weather, Average temperature and Climate

Take a look at past year’s weather for Quito in September and see if it is worth visiting.
Check flight prices to Quito on Avionero:
September

Weather in Quito in September 2025

OK Weather
Mild
🌧️
Rainy
Quito in September usually sees fair weather conditions, with an average daily high temperature of +64°F and roughly 0 sunny days. However, you should prepare for about 26 rainy days with an average precipitation of 196 mm. The weather is changeable so pack for every eventuality. Search flights in one click on Avionero.

Average weather

☀️
+64°F
Avg. max. temperature
+39°F
Min.
+75°F
Max.
196 mm
Total precipitation
68%
Avg. humidity
1 m/s
Avg. wind
0 ☀️
Sunny Days
0 ⛅️
Cloudy
26 🌦
Rainy
Our opinion: Quito has OK weather in September.

Average temperature in Quito in September

Here are the expected maximum, average and minimum temperatures in Quito for September based on the historical data.
Last Year
Historical Data

The temperature in September is +68°F on average, with a range between a maximum of +72°F during the day and a minimum of +45°F at night.

The average maximum temperature goes down 20% by the end of the month, compared with the beginning of the month, from +70°F to +64°F.

Is Quito warm or cold in September?

Quito is typically mild in September.

Maximum temperatures go up compared to the previous month from +64°F to +64°F. The minimum temperature also goes up from +48°F to +48°F.

Pack a light jacket as it will be warm in the day and cool in the evenings.

September is one of the warmest months in Quito, here is the comparison with other months:

Climate in Quito in September

Quito weather looks like this, on average, in September and the surrounding months.
AugustSeptemberOctober
Avg. temperature
+64°F+64°F+64°F
Min. temperature
+39°F+39°F+41°F
Max. temperature
+73°F+75°F+75°F
Rainfall
122 mm196 mm249 mm
Wind
2 m/s1 m/s1 m/s
Humidity
63%68%75%
Air pressure
1023 HPa1023 HPa1023 HPa
Sunny days
000
Cloudy days
000
Rainy days
292624
Snowy days
000

September typically has worse weather conditions compared to August. The temperature levels stay the same in the area of +64°F for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 122 mm to 196 mm. Humidity rises from 63% to 68%. Winds are calmer in comparison to August, going down from 2 m/s to 1 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

Wind speed in Quito in September based on historical data.
Last Year
Historical Data

The average wind speed is 2 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Quito is gradually decreasing during September, going from 3 m/s to 1 m/s over the course of the month.

Rain

Amount of rainfall in mm during September in Quito based on historical data.
Last Year
Historical Data
A chance of rain on a typical day in September stands at 97%, leading to total precipitation of around 167 mm. The maximum amount of rainfall per day is around 16 mm, which is considered light rain. September is a pretty wet month with over 29 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how September is compared with other months in the amount of precipitation, total mm:
Quito wettest month is April, where a typical day has a 77% chance of precipitation and 290 mm of rainfall per day. July, on the other hand, is the driest month with a mere 94% chance of precipitation and 106 mm of rainfall per day.

How was the weather last September in Quito?

This is the weather in Quito in September 2023:
1 September
🌧️
+70°F
2 September
🌧️
+67°F
3 September
🌧️
+67°F
4 September
☁️
+67°F
5 September
☁️
+69°F
6 September
☀️
+70°F
7 September
☀️
+71°F
8 September
🌧️
+71°F
9 September
🌧️
+66°F
10 September
🌧️
+64°F
11 September
🌧️
+68°F
12 September
🌧️
+71°F
13 September
🌧️
+70°F
14 September
🌧️
+65°F
15 September
🌧️
+67°F
16 September
☁️
+70°F
17 September
☁️
+68°F
18 September
🌧️
+69°F
19 September
☁️
+69°F
20 September
🌧️
+70°F
21 September
☁️
+69°F
22 September
🌧️
+69°F
23 September
☀️
+69°F
24 September
☁️
+71°F
25 September
🌧️
+69°F
26 September
☁️
+67°F
27 September
☀️
+69°F
28 September
☁️
+67°F
29 September
🌧️
+69°F
30 September
☁️
+65°F
In September 2023 Quito had 4 sunny days, 10 cloudy days, and 16 rainy days. The average maximum temperature was +68°F, with an absolute maximum of +72°F and a minimum of +64°F. The average humidity was 70%, with a maximum of 100% and a minimum of 36%. The average wind speed was 2 m/s, with a maximum of 10 m/s and a minimum of 0 m/s.
Are you planning a trip in September?

Climate Change Over the Years

This is how Quito climate has changed over the last 43 years.

The climate in Quito in September has not changed that much over the last 43 years.

The average temperature was the lowest in 1999 (+60°F) and the highest in 2015 (+68°F). The driest year was 2013 with only 1896 mm of rainfall, and the wettest year was 1981 with 3381 mm.

FAQ

Frequently asked questions about the weather in Quito in September:

Is September a good time to visit Quito?

It’s always a good time to visit Quito, 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 Quito in September?

September has mild temperatures in Quito. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!

Is Quito rainy in September?

Quito 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 Quito in September?

Usually, it’s not very sunny in Quito in September, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Monthly weather in Quito

Source of the data

For this page, we’ve looked at the typical weather in Quito, 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.