September weather forecast
Viña del Mar, Chile

Weather in September

The first month of the spring, September, is still a comfortable month in Viña del Mar, Chile, with an average temperature varying between 8.7°C (47.7°F) and 17.3°C (63.1°F).

Temperature

In Viña del Mar, the average high-temperature in September is essentially the same as in August - a still enjoyable 17.3°C (63.1°F). In Viña del Mar, in September, the average low-temperature is 8.7°C (47.7°F).

Humidity

July through September, with an average relative humidity of 72%, are the most humid months.

Rainfall

In Viña del Mar, during September, the rain falls for 4.2 days and regularly aggregates up to 15mm (0.59") of precipitation. In Viña del Mar, during the entire year, the rain falls for 33.7 days and collects up to 178mm (7.01") of precipitation.

Sea temperature

In September, the average sea temperature is 13.2°C (55.8°F).
Note: Swimming in 13.2°C (55.8°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

In September, the average length of the day in Viña del Mar is 11h and 55min.
On the first day of the month, sunrise is at 07:03 and sunset at 18:29 -04. On the last day of September, sunrise is at 07:24 and sunset at 19:47 -03.
Note: On Sunday, 04. September 2022, at 00:00, Daylight Saving Time starts, and the time zone changes from -04 to -03. Daylight Saving Time lasts until Sunday, 02. April 2023, at 00:00; consequently, the time zone reverts from -03 to -04.

Sunshine

The average sunshine in September in Viña del Mar is 8.6h.

UV index

May through October, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions - Protection against skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What are the most humid months in Viña del Mar?

The months with the highest humidity are July through September, with an average relative humidity of 72%.

What is the average humidity in September in Viña del Mar?

In September, the average relative humidity in Viña del Mar, Chile, is 72%.

How much does it rain in Viña del Mar in September?

In Viña del Mar, Chile, in September, during 4.2 rainfall days, 15mm (0.59") of precipitation is typically accumulated.

How cold is the water in September in Viña del Mar?

In Viña del Mar, in September, the average water temperature is 13.2°C (55.8°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

What is the average length of the day in September in Viña del Mar?

The average day length in September in Viña del Mar is 11h and 55min.

What time are sunrise and sunset in September in Viña del Mar?

On the first day of September, sunrise is at 07:03 and sunset at 18:29 -04. On the last day of the month, sunrise is at 07:24 and sunset at 19:47 -03.

When does Daylight Saving Time (DST) start in September in Viña del Mar?

On Sunday, 04. September 2022, at 00:00, Daylight Saving Time starts in Viña del Mar, and the time zone changes from -04 to -03. DST ends on Sunday, 02. April 2023, at 00:00.

How many hours of sunshine does Viña del Mar have in September?

The average sunshine duration in September in Viña del Mar is 8.6h.

When is the lowest UV index in Viña del Mar?

May through October, with an average maximum UV index of 4, are months with the lowest UV index.

What is the UV index reading in September in Viña del Mar?

In Viña del Mar, Chile, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.

Average temperature in September
Viña del Mar, Chile

Average temperature in September - Viña del Mar, Chile
  • Average high temperature in September: 17.3°C

The warmest months (with the highest average high temperature) are January and February (23.3°C).
The month with the lowest average high temperature is July (15.4°C).

  • Average low temperature in September: 8.7°C

The month with the highest average low temperature is January (14.7°C).
The coldest month (with the lowest average low temperature) is July (8.3°C).

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Average pressure in September
Viña del Mar, Chile

Average pressure in September - Viña del Mar, Chile
  • Average pressure in September: 1019.1mbar

The month with the highest atmospheric pressure is July (1019.5mbar).
The month with the lowest atmospheric pressure is February (1014.4mbar).

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Average wind speed in September
Viña del Mar, Chile

Average wind speed in September - Viña del Mar, Chile
  • Average wind speed in September: 12.2km/h

The windiest month (with the highest average wind speed) is November (13.6km/h).
The calmest month (with the lowest average wind speed) is May (10.3km/h).

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Average humidity in September
Viña del Mar, Chile

Average humidity in September - Viña del Mar, Chile
  • Average humidity in September: 72%

The months with the highest relative humidity are July, August and September (72%).
The month with the lowest relative humidity is April (66%).

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Average rainfall in September
Viña del Mar, Chile

Average rainfall in September - Viña del Mar, Chile
  • Average rainfall in September: 15mm

The wettest month (with the highest rainfall) is June (71mm).
The driest months (with the least rainfall) are January and February (0mm).

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Average rainfall days in September
Viña del Mar, Chile

Average rainfall days in September - Viña del Mar, Chile
  • Average rainfall days in September: 4.2 days

The month with the highest number of rainy days is June (6.8 days).
The month with the least rainy days is February (0.3 days).

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Average sea temperature in September
Viña del Mar, Chile

Average sea temperature in September - Viña del Mar, Chile
  • Average sea temperature in September: 13.2°C

The best month for swimming (with the highest average sea temperature) is February (17.9°C).
The coldest month (with the lowest average sea temperature) is July (13.1°C).

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Average daylight in September /
Average sunshine in September
Viña del Mar, Chile

Average daylight in September / Average sunshine in September - Viña del Mar, Chile
  • Average daylight in September: 11h and 55min

The month with the longest days is December (Average daylight: 14h and 17min).
The month with the shortest days is June (Average daylight: 10h and 1min).

  • Average sunshine in September: 8.6h

The month with the most sunshine is February (Average sunshine: 9.9h).
The month with the least sunshine is June (Average sunshine: 8h).

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Average sunshine days in September
Viña del Mar, Chile

Average sunshine days in September - Viña del Mar, Chile
  • Average sunshine days in September: 23.9 days

The months with the most sunshine days are January and March (30.3 days).
The month with the least sunshine days is June (22.7 days).

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Average UV index in September
Viña del Mar, Chile

Average UV index in September - Viña del Mar, Chile
  • Average UV index in September: 4

The months with the highest UV index are January, February, March, April, November and December (UV index 5).
The months with the lowest UV index are May, June, July, August, September and October (UV index 4).

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Average cloud cover in September
Viña del Mar, Chile

Average cloud cover in September - Viña del Mar, Chile
  • Average cloud cover in September: 25

The month with the most cloud cover is June (Cloud cover 28).
The month with the least cloud cover is February (Cloud cover 7).

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Average visibility in September
Viña del Mar, Chile

Average visibility in September - Viña del Mar, Chile
  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, May and June (10km).
The months with the lowest visibility are July, August, September, October, November and December (9km).

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