Valparaíso
September
Weather in Valparaíso for September 2026
Your guide to Valparaíso weather in September - trends and predictions
Until now, September 2026 in Valparaíso has been nearly identical to the historical average, with a temperature of 16.2 °C (showing only a slight deviation of 0.1 °C).
Expect cooler weather in the next days in Valparaíso with the forecast suggesting a temperature of 19.9 °C, lower than the historical average.
In general, the average temperature in Valparaíso at the beginning of September is 15.9 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 21.3 °C by the end of September.
With an average of 3 rainy days, Valparaíso experiences minimal rainfall in September.
Temperatures
Rain 🌧️
27
Dry days
3
Rainy days
0
Snow days
16°/9°
Temperatures
22 km/h
Avg max wind
74 %
Avg humidity
Valparaíso Weather September
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Temperatures trend during September in Valparaíso
See the weather trend as well as the moving average line
September weather in Valparaíso day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Cloudy | 18° /10° | 0 mm | 5 | |
| 2 Sept. |  Sunny | 16° /9° | 1.7 mm | 4 | |
| 3 Sept. | Sunny | 16° /9° | 1.3 mm | 5 | |
| 4 Sept. | Sunny | 16° /8° | 0 mm | 5 | |
| 5 Sept. |  Overcast | 17° /9° | 0 mm | 5 | |
| 6 Sept. | Sunny | 14° /8° | 2.2 mm | 4 | |
| 7 Sept. | Overcast | 14° /7° | 0 mm | 5 | |
| 8 Sept. | Overcast | 14° /8° | 0 mm | 4 | |
| 9 Sept. | Sunny | 16° /9° | 0 mm | 5 | |
| 10 Sept. | Sunny | 16° /9° | 1.2 mm | 5 | |
| 11 Sept. | Sunny | 17° /9° | 0.7 mm | 5 | |
| 12 Sept. |  Partly cloudy | 16° /8° | 0 mm | 5 | |
| 13 Sept. | Overcast | 16° /8° | 0 mm | 5 | |
| 14 Sept. | Sunny | 17° /9° | 0 mm | 6 | |
| 15 Sept. | Sunny | 19° /10° | 0 mm | 6 | |
| 16 Sept. | Sunny | 17° /9° | 0 mm | 5 | |
| 17 Sept. | Sunny | 15° /8° | 0 mm | 4 | |
| 18 Sept. | Overcast | 15° /9° | 0.3 mm | 4 | |
| 19 Sept. |  Patchy rain possible | 16° /12° | 1 mm | 6.2 | |
| 20 Sept. | Overcast | 17° /12° | 0.6 mm | 7 | |
| 21 Sept. | Overcast | 21° /12° | 0 mm | 7.2 | |
| 22 Sept. | Overcast | 24° /13° | 0 mm | 6 | |
| 23 Sept. | Overcast | 23° /13° | 0 mm | 6 | |
| 24 Sept. | Overcast | 21° /14° | 0 mm | 6 | |
| 25 Sept. | Overcast | 22° /14° | 0 mm | 6 | |
| 26 Sept. | Sunny | 24° /14° | 0 mm | 7 | |
| 27 Sept. | Sunny | 23° /13° | 0 mm | 7 | |
| 28 Sept. | Overcast | 24° /13° | 0 mm | 7 | |
| 29 Sept. | Overcast | 18° /14° | 0 mm | 5 | |
| 30 Sept. | Overcast | 17° /11° | 0 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Valparaíso 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 Valparaíso forecast closer to your planned date for the most up-to-date weather information.
Change Month
Valparaíso in September - FAQ
What are the expected maximum and minimum temperatures in Valparaíso during September?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Valparaíso during September?
Expect minimal rainfall in Valparaíso during September, with a total of 16.8 mm over approximately 3 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Valparaíso during September?
The average wind speed in Valparaíso during September is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Valparaíso
Explore the daily rainfall trends and prepare for Valparaísos September weather 💧
Typically, Valparaíso has 3 rainy days in September with a total of 16.8 mm of rainfall.
UV exposure in Valparaíso during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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