Average weather for La Serena in September
It's cool to moderate in September in La Serena with an average temperature of 17°C. Temperatures this month range from a low of 16°C to a high of 18°C. At night, you can expect temperatures between 9°C and 11°C.
Start of September
The month of September starts in La Serena with cool temps, averaging around 17°C during the day and nights around 10°C. There’s little chance of precipitation. The weather’s mostly sunny and dry.
Mid September
By mid-September, daytime temps stay steady at around 17°C, with nights around 10°C. No precipitation expected during this period, so you can enjoy plenty of sunshine.
End of September
By the end of September, the average daytime temperature in La Serena is around 18°C, while nighttime temps are about 11°C. No precipitation expected at the end of the month; it’ll be mostly sunny.
Water temperature
The water temperature at La Serena is 15°C this month. This is probably too cold to swim without protective gear.
According to weather history, there is only 2,7 mm of precipitation in September. The wind speed is around 4 Bft, mostly coming from the West.
La Serena in September |
New York | ||
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17°C | 27°C | |
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18°C | 31°C | |
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16°C | -5°C | |
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2,7 mm | 57 mm | |
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1 day | 9 days |
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is September a good time to visit La Serena?
Looking for sun and warm weather? September isn’t a good month to be in La Serena. The temperatures are too low for a warm stay this month.
Temperature records
With 27°C in 2021, La Serena reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 12°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 4°C to a highest value of 13°C.
Check out the climate of La Serena for all months and discover the best travel time
Curious about the weather in other parts of Chile? Check out the climate and weather for spots like Santiago, Patagonia, Valparaíso, or explore other destinations in Chile.
Daily Temperature in September in La Serena
This chart shows the average daily high and low temperatures in September for La Serena, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in La Serena
The chart below shows the average daily precipitation in September for La Serena, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 1 day of precipitation in La Serena.
Daily UV index in September in La Serena
This chart shows the average daily UV index in September in La Serena, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in La Serena over the years
This chart shows the average temperature in September in La Serena, measured in degrees Celsius, over the past few years.
Total precipitation in September in La Serena over the years
This chart shows the average precipitation in September in La Serena, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for La Serena
Click on any day in September to get detailed info about the usual weather on that day in La Serena. Check out the historical temperatures and precipitation over the past 10 years on this day.






























Weather experiences in September in La Serena
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Average weather in La Serena by month
Click on a month below to see detailed weather info for La Serena. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of La Serena for all months at once