Santiago Metropolitan (Santiago)
September
Weather in Santiago Metropolitan for September 2025
Your guide to Santiago Metropolitan weather in September - trends and predictions
So far, September 2025 in Santiago Metropolitan is slightly warmer than the historical average by 1 °C.
The forecast for the coming days of September 2025 predicts a temperature of 22.4 °C , which is warmer than usual.
In general, the average temperature in Santiago Metropolitan at the beginning of September is 15.9 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 23.6 °C by the end of September.
Santiago Metropolitan experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 85.9 mm.
Temperatures
Rain 🌧️
20
Dry days
10
Rainy days
0
Snow days
16°/6°
Temperatures
11 km/h
Avg max wind
57 %
Avg humidity
Santiago Metropolitan Weather September
Move between months or click on a day
What’s the Weather Like in Santiago Metropolitan This September?
Discover the average temperatures and weather trends across Santiago Metropolitan’s cities this September.
Temperatures trend during September in Santiago Metropolitan
See the weather trend as well as the moving average line
September weather in Santiago Metropolitan day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain shower | 17° /6° | 0.6 mm | 5 | |
| 2 Sept. | Light rain shower | 14° /3° | 5.6 mm | 4 | |
| 3 Sept. |  Light rain | 14° /5° | 1.1 mm | 4 | |
| 4 Sept. |  Sunny | 18° /6° | 1.7 mm | 5 | |
| 5 Sept. |  Overcast | 18° /7° | 0.1 mm | 5 | |
| 6 Sept. | Sunny | 16° /5° | 18.4 mm | 5 | |
| 7 Sept. |  Moderate rain at times | 14° /3° | 1.5 mm | 4 | |
| 8 Sept. | Patchy rain possible | 15° /5° | 0.4 mm | 4 | |
| 9 Sept. | Light rain shower | 18° /7° | 0.4 mm | 5 | |
| 10 Sept. | Patchy rain possible | 16° /6° | 1.5 mm | 5 | |
| 11 Sept. | Sunny | 17° /6° | 19.3 mm | 5 | |
| 12 Sept. |  Thundery outbreaks possible | 16° /4° | 0.2 mm | 5 | |
| 13 Sept. | Overcast | 15° /5° | 0.2 mm | 5 | |
| 14 Sept. |  Partly cloudy | 18° /8° | 0 mm | 6 | |
| 15 Sept. | Sunny | 21° /10° | 0 mm | 6 | |
| 16 Sept. | Partly cloudy | 21° /10° | 0 mm | 6 | |
| 17 Sept. | Sunny | 22° /9° | 0 mm | 1.6 | |
| 18 Sept. | Sunny | 23° /9° | 0 mm | 1.8 | |
| 19 Sept. | Patchy rain possible | 20° /8° | 0.1 mm | 1.8 | |
| 20 Sept. | Patchy rain possible | 18° /8° | 3.3 mm | 1.5 | |
| 21 Sept. | Patchy rain possible | 16° /7° | 1.4 mm | 0 | |
| 22 Sept. | Sunny | 24° /6° | 0 mm | 5 | |
| 23 Sept. | Sunny | 26° /9° | 0 mm | 6 | |
| 24 Sept. | Sunny | 29° /12° | 0 mm | 6 | |
| 25 Sept. | Sunny | 19° /10° | 0 mm | 5 | |
| 26 Sept. | Sunny | 24° /7° | 0 mm | 6 | |
| 27 Sept. |  Cloudy | 18° /10° | 0 mm | 4 | |
| 28 Sept. | Patchy rain possible | 22° /9° | 0.2 mm | 5 | |
| 29 Sept. | Sunny | 25° /8° | 0 mm | 6 | |
| 30 Sept. | Sunny | 28° /10° | 0 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Santiago Metropolitan in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Santiago Metropolitan forecast closer to your planned date for the most up-to-date weather information.
Change Month
Santiago Metropolitan in September - FAQ
What are the expected maximum and minimum temperatures in Santiago Metropolitan during September?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 6°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Santiago Metropolitan during September?
Moderate rainfall is anticipated in Santiago Metropolitan during September, with a total of 85.9 mm spread over approximately 10 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Santiago Metropolitan during September?
The average wind speed in Santiago Metropolitan during September is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
Santiago Metropolitan water temperatures in September
The average water temperature of the Pacific Ocean near Santiago Metropolitan in September is 11.3 °C. At the beginning of September temperatures are around 11.3 °C; by the end of the month they get a bit cooler and reach 10.7 °C.
- What is the water temperature in Santiago Metropolitan in September?
- The average water temperature in Santiago Metropolitan in September is 11.3 °C.
- Can you swim in Santiago Metropolitan in September?
- Dangerously cold water: hypothermia risk is high. Only experienced cold-water swimmers with proper gear should consider entering.
September rainfall patterns in Santiago Metropolitan
Explore the daily rainfall trends and prepare for Santiago Metropolitans September weather 💧
UV exposure in Santiago Metropolitan during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Provinces in Santiago Metropolitan
Select a province for an accurate weather forecast
Top locations in Santiago Metropolitan
Select a location for an accurate weather forecast
More Locations Quick links
More Santiago Metropolitan weather pages
You are here
Where is Santiago Metropolitan?Get accurate weather forecasts for Santiago Metropolitan, located at latitude -33.457 and longitude -70.648. Stay updated with localized weather information tailored for Santiago Metropolitan.
Found a mistake?
We appreciate your attention to details. Tell us here.