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Lasso Weather in September
With daytime temperatures of 15°C (59°F) and nighttime lows of 5°C (41°F), September in Lasso brings moderate temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 126 mm (5 in) falls on average.
Rainfall in Lasso in September
Climate statistics over the past 30 years suggest around 13 days of rain, with 126 mm (5 in) average for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Lasso in September
Daytime highs in Lasso in September reach 15°C (59°F), with nights around 5°C (41°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights fall to 5°C (41°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Lasso in September
The month brings about 189 hours of sunlight, offering a comfortable mix of sun and overcast.If you prefer enjoying temperate temperatures and rain-free days, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Lasso Temperature in September
Min Temperature
5°C (41°F)
Max Temperature
15°C (59°F)
Chance of Rain
44%
Precipitation
126 mm (5 in)
Rainy days
13 days
Humidity
72% *
Sunshine
189 hours *
Percentage Sunshine
*
* Data from: Quito, Ecuador (67 KM, 42 Miles).
Lasso Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Lasso - and find the best time to visit.
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Lasso typically stay consistent throughout September, with daily highs averaging around 15°C (59°F). Nights are cool, with lows around 8°C (46°F).
Average temperatures in September
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Lasso in September
Browse day-by-day weather records for Lasso spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Lasso historical weather extremes in September
Based on 13 years of weather observations (2013-2026), these are the most extreme conditions recorded in Lasso.
- The warmest day in September was on September 21, 2025, with a maximum of 26°C (79°F).
- Lasso experienced its chilliest September day on September 6, 2021, reaching only 12°C (54°F).
- Nighttime temperatures dropped to -2°C (28°F) on September 17, 2023, marking the coldest September night on record.
- The wettest September day on record brought 24 mm (0.9 in) of precipitation to Lasso (September 30, 2024).
Best Places in Ecuador in September
Find out more about the weather in Ecuador and which places have the best travel conditions in this month. See all of Ecuador in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Lasso in September
The weather can swing between comfortable and chilly in September, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
What To Do in Lasso in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming5/10 -
Cycling5/10 -
Walking5/10 -
Camping3/10 -
Outdoor sports9/10
Lasso 3-Day Forecast
More climate data for Lasso
Temperature Rainfall Sunshine Humidity
See the full Lasso climate overview or explore weather in Ecuador.
Popular in September
Where to go in September - average daytime high across popular destinations.
Guayaquil
29°C (84°F) Montañita
25°C (77°F) Puerto Ayora26°C (79°F) Salinas23°C (73°F) Puerto Baquerizo Moreno
23°C (73°F) Quito
19°C (66°F) Baños17°C (63°F) Cuenca15°C (59°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The 10 most alternative cities in South America
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