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La Serena Weather in September
La Serena in September averages 19°C (66°F) during the day and 10°C (50°F) at night. Minimal rainfall is typical for this time of year.
Rainfall in La Serena in September
The climate data from previous years indicates about a single day of rain, averaging 6.2 mm (0.2 in) for the month. If rain does fall, it tends to be a moderate shower rather than anything heavy.
Temperature in La Serena in September
La Serena in September is worth a visit. The temperature is excellent, with 19°C (66°F) during the day and 10°C (50°F) at night. Even when the weather is stable, mornings and evenings can still feel distinctly cool. With lows of 10°C (50°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in La Serena in September
The area experiences a moderate amount of sunshine, with approximately 173 hours of sunlight expected. This means a decent mix of sun and overcast.If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit La Serena.
La Serena Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
19°C (66°F)
Chance of Rain
5%
Precipitation
6.2 mm (0.2 in)
Rainy days
a single day
Humidity
82%
Sunshine
173 hours
Percentage Sunshine
La Serena Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in La Serena - and find the best time to visit.
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in La Serena typically stay consistent throughout September, with daily highs averaging around 19°C (66°F). Nights are cool, with lows around 9°C (48°F).
Average temperatures in September
Historical weather records for La Serena in September
Browse day-by-day weather records for La Serena spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
La Serena historical weather extremes in September
Our historical data for La Serena spans 1993 to 2026, revealing these weather extremes.
- On September 29, 2021, temperatures climbed to 30°C (86°F), marking the warmest September day on record.
- La Serena experienced its chilliest September day on September 30, 2007, reaching only 11°C (52°F).
- The lowest overnight temperature recorded in September was 3°C (37°F) (September 16, 2013).
Best Places in Chile in September
Find out more about the weather in Chile and which places have the best travel conditions in this month. See all of Chile 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 La Serena in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Dry conditions mean you won't need to worry about rain protection. Bring sunglasses since you'll have some sunny periods throughout the month
What To Do in La Serena in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming6/10 -
Cycling10/10 -
Walking10/10 -
Barbeque7/10 -
Camping10/10 -
Outdoor sports10/10
La Serena 3-Day Forecast
More climate data for La Serena
Temperature Rainfall Sunshine Humidity
See the full La Serena climate overview or explore weather in Chile.
Popular in September
Where to go in September - average daytime high across popular destinations.
San Pedro de Atacama
21°C (70°F) Hanga Roa
21°C (70°F) La Serena19°C (66°F) Santiago18°C (64°F) Viña del Mar16°C (61°F) Concón16°C (61°F) Valparaíso15°C (59°F) Pucón
13°C (55°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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