Temperatures in September
It's cool to moderate in September in Valparaíso with an average temperature of 18°C. Temperatures this month range from a low of 16°C to a high of 19°C. At night, you can expect temperatures between 8°C and 10°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Valparaíso in September. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of September
The month of September starts in Valparaíso with mild temperatures, averaging around 18°C during the day and nights close to 8°C. There’s little chance of precipitation. The weather is mostly sunny and dry.
Mid-September
By mid-September, the average daytime temperature stays the same at 18°C, with nights close to 9°C. Not much precipitation expected during this period. It’s mostly dry with sunshine.
End of September
By the end of September, the average daytime temperature in Valparaíso will be around 18°C, with nights close to 9°C. Barely any chance of precipitation. The weather will mostly be dry with lots of sunshine.
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Water temperature
The water temperature at Valparaíso is 15°C this month. This is probably too cold to swim without protective gear.
Precipitation in September
In September, there is an average of 17 mm of precipitation, spread over 3 days. The wind speed is around 4 Bft, mostly coming from the West.
The precipitation chance averages 10% per day this month.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Valparaíso. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Valparaíso in September |
London | ||
|---|---|---|---|
 Average Temperature |
18°C | 20°C | |
 High Temp |
19°C | 22°C | |
| Low Temp |
16°C | 17°C | |
 Total Precipitation |
17 mm | 44 mm | |
| Rainy Days |
3 days | 8 days | |
August
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 Valparaíso?
Want nice weather? Then September is a great time to be in Valparaíso. You’ll have pleasant temperatures and little chance of rain this month.
Temperature records for Valparaíso in September
With 31°C, Valparaíso hit the highest temperature in the last 10 years in September 2020. The lowest daytime temperature in this month was 11°C in 2018. The extreme night temperatures ranged from a low of 1°C to a high of 13°C.
Check out the climate of Valparaíso for all months and discover the best travel time
Curious about the climate in other parts of Chile? Check out the weather and climate in places like Santiago, Patagonia, San Pedro de Atacama, or have a look at other destinations in Chile.
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Daily Temperature in September in Valparaíso
This chart shows the average daily temperatures, both day and night, for each day in September in Valparaíso, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in Valparaíso
The chart below shows the average daily precipitation in September for Valparaíso, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown 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 rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 3 days of rain in Valparaíso.
Daily UV Index in September in Valparaíso
This chart shows the average daily UV index in September in Valparaíso, 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 Valparaíso Over the Years
This chart shows the average temperature in September in Valparaíso, measured in degrees Celsius, over the past years.
Total Precipitation in September in Valparaíso Over the Years
This chart shows the average precipitation in September in Valparaíso, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for Valparaíso
Click on a specific day in September for detailed info on the typical weather on that day in Valparaíso. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Valparaíso
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Average Weather in Valparaíso by Month
Click on a month below to see detailed weather info for Valparaíso. 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 Valparaíso for all months at once
