Last updated: June 24, 2025
In Valparaiso, United States, the average temperature in October hovers around 12°C (53°F), with a range that can dip to a brisk -7°C (20°F) or soar to a warm 33°C (91°F). Expect about 115 mm (4.5 in) of precipitation spread over 9 days, and enjoy an average humidity of 75%. Whether you're bracing for a chill or basking in warmth, this month presents a dynamic climate experience!
In October in Valparaiso, the average temperature is 12°C (53°F). Maximum temperatures can reach 33°C (91°F), while the minimum can drop as low as -7°C (20°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack accordingly for both warm and cold weather.
In Valparaiso in October, the precipitation amount is 115 mm (4.5 in) over the course of 9 days, indicating a relatively wet period for the region.
In Valparaiso in October, humidity is 75%. With an average temperature of 12°C (53°F), this humidity feels like a damp chill that clings to your skin, making leisurely exploration feel sluggish and heavy, perhaps leaving you yearning for cozy indoor retreats.
In Valparaiso in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Valparaiso, you can refer to this Hourly UV Index in Valparaiso.
UV Risk Categories
Weather in Valparaiso varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Valparaiso, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (26°F) | 33 mm (1.3 inches) | 76% | moderate |
| February Weather | -3°C (26°F) | 27 mm (1.1 inches) | 80% | moderate |
| March Weather | 5°C (42°F) | 98 mm (3.8 inches) | 73% | high |
| April Weather | 10°C (51°F) | 48 mm (1.9 inches) | 74% | very high |
| May Weather | 17°C (63°F) | 139 mm (5.5 inches) | 78% | very high |
| June Weather | 25°C (77°F) | 108 mm (4.3 inches) | 82% | very high |
| July Weather | 26°C (79°F) | 74 mm (2.9 inches) | 83% | very high |
| August Weather | 24°C (76°F) | 92 mm (3.6 inches) | 80% | very high |
| September Weather | 21°C (70°F) | 80 mm (3.2 inches) | 75% | very high |
| October Weather | 12°C (53°F) | 115 mm (4.5 inches) | 75% | high |
| November Weather | 5°C (41°F) | 29 mm (1.1 inches) | 82% | moderate |
| December Weather | 0°C (32°F) | 41 mm (1.6 inches) | 83% | low |