September weather forecastPunta Arenas, Chile

September

Weather in September

The advent of September in Punta Arenas marks the official arrival of spring. The weather is mild, with warming trends that lift event the most persistent winter chills. This transitional season harbors a mild equilibrium between the remnants of winter's chill and the incoming spring warmth. Temperatures hover in the region from 1.2°C (34.2°F) to 7.7°C (45.9°F). However, the weather often changes quickly, so it's advised to dress in layers.

Temperature

Punta Arenas, Chile, marks the arrival of September with an average high-temperature of a chilly 7.7°C (45.9°F), hardly different from August's 5.2°C (41.4°F). The temperature dips to an average of 1.2°C (34.2°F) during September nights.

Humidity

The average relative humidity in September is 79%.

Rainfall

September is the month with the least rainfall in Punta Arenas. Rain falls for 11 days and accumulates 27mm (1.06") of precipitation.

Sea temperature

In September, the average sea temperature in Punta Arenas is 5.9°C (42.6°F).
Note: Caution: 5.9°C (42.6°F) temperatures below 10°C (50°F) during swimming can result in intense cold shock and quickened breathing.

Daylight

The average length of the day in September is 11h and 43min.
On the first day of September, sunrise is at 07:20 and sunset at 18:06 -04. On the last day of the month, sunrise is at 07:10 and sunset at 19:56 -03.
Note: On Sunday, 08. September 2024, at 00:00, Daylight Saving Time starts, and the time zone changes from -04 to -03. Daylight Saving Time lasts until Sunday, 06. April 2025, at 00:00; consequently, the time zone reverts from -03 to -04.

Sunshine

The average sunshine in September is 5.2h.

UV index

In September, the average daily maximum UV index in Punta Arenas is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the UV index of 2 transforms into the following advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.

Updated: Jan 24, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Punta Arenas, in September, the average high-temperature is 7.7°C (45.9°F), and the average low-temperature is 1.2°C (34.2°F).

In Punta Arenas, the average relative humidity in September is 79%.

September is the month with the least rainfall. Rain falls for 11 days and accumulates 27mm (1.06") of precipitation.

In Punta Arenas, in September, it is raining for 11 days, with typically 27mm (1.06") of accumulated precipitation.

In Punta Arenas, Chile, the average seawater temperature in September is 5.9°C (42.6°F). Swimming in 5.9°C (42.6°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

In September, the average day length is 11h and 43min.

In September, on the first day of the month, sunrise is at 07:20 and sunset at 18:06 -04. On the last day of the month, in Punta Arenas, sunrise is at 07:10 and sunset at 19:56 -03.

On Sunday, 08. September 2024, at 00:00, Daylight Saving Time starts in Punta Arenas, and the time zone changes from -04 to -03. DST ends on Sunday, 06. April 2025, at 00:00.

In September, the average sunshine duration in Punta Arenas, Chile, is 5.2h.

In Punta Arenas, the average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

5.2°C

7.7°C

10.2°C

Average low temperature

Average humidity

Average rainfall

Average rainfall days

Average sea temperature

Average daylight

Average sunshine

Average UV index

Average temperature in September
Punta Arenas, Chile

Average high temperature in September: 7.7°C

The warmest month (with the highest average high temperature) is January (14.3°C).
The month with the lowest average high temperature is July (3.7°C).

Average low temperature in September: 1.2°C

The month with the highest average low temperature is January (6.8°C).
The coldest month (with the lowest average low temperature) is July (-1.1°C).

Average humidity in September
Punta Arenas, Chile

Average humidity in September: 79%

The month with the highest relative humidity is June (87%).
The months with the lowest relative humidity are January, November and December (72%).

Average rainfall in September
Punta Arenas, Chile

Average rainfall in September: 26.5mm

The wettest month (with the highest rainfall) is January (41.7mm).
The driest month (with the least rainfall) is September (26.5mm).

Average rainfall days in September
Punta Arenas, Chile

Average rainfall days in September: 11 days

The months with the highest number of rainy days are January and March (15 days).
The month with the least rainy days is October (10 days).

Average sea temperature in September
Punta Arenas, Chile

Average sea temperature in September: 5.9°C

The best month for swimming (with the highest average sea temperature) is February (10.3°C).
The coldest months (with the lowest average sea temperature) are July and August (5.8°C).

Average daylight in September /
Average sunshine in September
Punta Arenas, Chile

Average daylight in September: 11h and 42min

The month with the longest days is December (Average daylight: 16h and 54min).
The month with the shortest days is June (Average daylight: 7h and 36min).

Average sunshine in September: 5h and 12min

The month with the most sunshine is November (Average sunshine: 7h and 36min).
The month with the least sunshine is June (Average sunshine: 2h and 12min).