October Weather in Portal, United States

Last updated: June 24, 2025

In October, the average temperature in Portal, United States hovers around 22°C (72°F), with extremes ranging from a cool 3°C (38°F) to a scorching 38°C (100°F). Expect a moderate level of precipitation, totaling 76 mm (3.0 in) over approximately 7 days, while the average humidity remains comfortably high at 78%.

October Temperature in Portal

In October in Portal, the average temperature is 22°C (72°F), with maximums reaching 38°C (100°F) and minimums dropping as low as 3°C (38°F). This variety in temperatures makes it essential for travelers to pack accordingly to enjoy their stay comfortably.

October Weather in Portal: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Portal, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Portal, October typically has an average temperature of 22°C (72°F), with highs reaching up to 38°C (100°F) and lows dropping to around 3°C (38°F).

Data source: Temperature data for Portal generated using information from the Copernicus Climate Change Service.

October Precipitation in Portal

In Portal in October, the precipitation amount is 76 mm (3.0 in) over a period of 7 days.

October Precipitation Trends in Portal

The chart displays monthly precipitation patterns in Portal, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Portal, October typically receives around 76 mm (3.0 inches) of precipitation spread over approximately 7 days.

Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Portal

In Portal in October, humidity is 78%. With an average temperature of 22°C (72°F), this humidity feels like a warm blanket wrapped around you, making outdoor exploration a bit stifling but ultimately rewarding as you bask in the vibrant atmosphere.

October Average Humidity in Portal

This chart illustrates the average monthly humidity levels in Portal, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Portal is approximately 78%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Portal

In Portal in October, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Portal.

Maximum UV Index Levels in Portal for October

The chart shows the monthly maximum UV Index (UVI) for Portal in October, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In October, the maximum UV index in Portal typically reaches 8, which falls under the very high exposure category.

Data source: Portal October UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How October Weather in Portal Compares to Other Months

Weather in Portal varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Portal, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Portal, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (51°F)	81 mm (3.2 inches)	86%	moderate
February Weather	14°C (57°F)	97 mm (3.8 inches)	81%	high
March Weather	16°C (61°F)	68 mm (2.7 inches)	81%	very high
April Weather	19°C (67°F)	92 mm (3.6 inches)	79%	very high
May Weather	24°C (76°F)	78 mm (3.1 inches)	75%	extreme
June Weather	27°C (80°F)	112 mm (4.4 inches)	75%	extreme
July Weather	28°C (83°F)	127 mm (5.0 inches)	80%	extreme
August Weather	28°C (82°F)	119 mm (4.7 inches)	81%	extreme
September Weather	26°C (79°F)	87 mm (3.4 inches)	83%	very high
October Weather	22°C (72°F)	76 mm (3.0 inches)	78%	very high
November Weather	14°C (58°F)	61 mm (2.4 inches)	85%	high
December Weather	12°C (54°F)	121 mm (4.8 inches)	87%	moderate