October Weather in Swansea, United States

Last updated: June 24, 2025

In October, the average temperature in Swansea, United States hovers around 14°C (57°F). Expect a minimum of -1°C (31°F) and a comfortable maximum of 27°C (81°F). During this month, anticipate approximately 135 mm (5.3 in) of precipitation spread over 11 days, contributing to an average humidity level of 75%. Stay prepared for a mix of weather!

October Temperature in Swansea

In October in Swansea, the average temperature is 14°C (57°F). Maximum temperatures can reach 27°C (81°F), while minimums can dip as low as -1°C (31°F). This makes it a great time for travelers to experience a mix of warm days and cooler evenings, so be sure to pack accordingly!

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

The chart illustrates October temperature patterns in Swansea, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Swansea, October typically has an average temperature of 14°C (57°F), with highs reaching up to 27°C (81°F) and lows dropping to around -1°C (31°F).

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

October Precipitation in Swansea

In Swansea in October, the precipitation amount is 135 mm (5.3 in) over the course of 11 days.

October Precipitation Trends in Swansea

The chart displays monthly precipitation patterns in Swansea, 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 Swansea, October typically receives around 135 mm (5.3 inches) of precipitation spread over approximately 11 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 Swansea

In Swansea in October, humidity is 75%. With an average temperature of 14°C (57°F), this humidity feels like a damp blanket enveloping you, making outdoor activities somewhat uncomfortable and travel a bit sluggish, as the air feels heavy and the heat lingers close to your skin.

October Average Humidity in Swansea

This chart illustrates the average monthly humidity levels in Swansea, 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 Swansea is approximately 75%, 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 Swansea

In Swansea 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 Swansea, you can refer to this Hourly UV Index in Swansea.

Maximum UV Index Levels in Swansea for October

The chart shows the monthly maximum UV Index (UVI) for Swansea 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 Swansea typically reaches 6, which falls under the high exposure category.

Data source: Swansea 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 Swansea Compares to Other Months

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

This table compares monthly weather conditions in Swansea, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (33°F)	74 mm (2.9 inches)	84%	moderate
February Weather	1°C (35°F)	92 mm (3.6 inches)	84%	moderate
March Weather	4°C (39°F)	102 mm (4.0 inches)	82%	high
April Weather	9°C (49°F)	123 mm (4.9 inches)	79%	very high
May Weather	15°C (58°F)	101 mm (4.0 inches)	75%	very high
June Weather	20°C (68°F)	97 mm (3.8 inches)	78%	very high
July Weather	23°C (74°F)	122 mm (4.8 inches)	76%	very high
August Weather	23°C (74°F)	92 mm (3.6 inches)	76%	very high
September Weather	19°C (67°F)	97 mm (3.8 inches)	75%	very high
October Weather	14°C (57°F)	135 mm (5.3 inches)	75%	high
November Weather	7°C (45°F)	101 mm (4.0 inches)	80%	moderate
December Weather	2°C (36°F)	120 mm (4.7 inches)	80%	low