January Weather in Brinnon, United States

Last updated: June 24, 2025

In Brinnon, United States, the average temperature in January hovers around 3°C (38°F). With a minimum falling to a chilly -9°C (17°F) and a maximum of 11°C (52°F), it's a month where layers are key. Expect 203 mm (8.0 in) of precipitation spread over 18 days, contributing to an average humidity of 86%. Dress warmly and embrace the cozy ambiance!

January Temperature in Brinnon

In January in Brinnon, the average temperature is 3°C (38°F), with maximums reaching 11°C (52°F) and minimums dipping as low as -9°C (17°F). Be sure to pack warm clothing if you're planning to travel during this chilly time of year.

January Weather in Brinnon: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Brinnon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Brinnon, January typically has an average temperature of 3°C (38°F), with highs reaching up to 11°C (52°F) and lows dropping to around -9°C (17°F).

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

January Precipitation in Brinnon

In Brinnon in January, the precipitation amount is 203 mm (8.0 in) over the course of 18 days.

January Precipitation Trends in Brinnon

The chart displays monthly precipitation patterns in Brinnon, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Brinnon, January typically receives around 203 mm (8.0 inches) of precipitation spread over approximately 18 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Brinnon

In Brinnon in January humidity is 86%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that seeps through your layers, making traveling uncomfortable as breath clouds visibly in the crisp air.

January Average Humidity in Brinnon

This chart illustrates the average monthly humidity levels in Brinnon, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Brinnon is approximately 86%, offering insight into how humid the weather typically is during this month.

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

January UV Index in Brinnon

In Brinnon in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Brinnon, you can visit Hourly UV Index in Brinnon.

Maximum UV Index Levels in Brinnon for January

The chart shows the monthly maximum UV Index (UVI) for Brinnon in January, 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 January, the maximum UV index in Brinnon typically reaches 2, which falls under the low exposure category.

Data source: Brinnon January 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 January Weather in Brinnon Compares to Other Months

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

This table compares monthly weather conditions in Brinnon, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (38°F)	203 mm (8.0 inches)	86%	low
February Weather	2°C (36°F)	153 mm (6.0 inches)	84%	moderate
March Weather	4°C (39°F)	132 mm (5.2 inches)	85%	moderate
April Weather	7°C (44°F)	118 mm (4.7 inches)	83%	high
May Weather	11°C (52°F)	94 mm (3.7 inches)	84%	very high
June Weather	14°C (57°F)	105 mm (4.1 inches)	84%	very high
July Weather	17°C (63°F)	45 mm (1.8 inches)	82%	very high
August Weather	18°C (64°F)	40 mm (1.6 inches)	73%	very high
September Weather	14°C (58°F)	114 mm (4.5 inches)	74%	high
October Weather	9°C (48°F)	155 mm (6.1 inches)	83%	moderate
November Weather	6°C (42°F)	206 mm (8.1 inches)	86%	moderate
December Weather	3°C (37°F)	207 mm (8.1 inches)	87%	low