Bothell, United States — Weather in December 2026

Climate Overview

Bothell, United States in December has cold conditions, with highs averaging around 7.4°C (45°F). Rain falls on about 19 days this month, totalling around 205 mm.

This month falls at the beginning of Winter. Cold conditions dominate the month.

Temperatures remain fairly steady throughout December, with daily highs around 7°C (45°F).

December sees fairly even rainfall, totalling about 206 mm across the month.

Expect around 4.2h of sunshine at the start of December, decreasing to 3.4h by the end.

Wind speeds pick up through the month, from 15 km/h (9 mph) to 19 km/h (12 mph).

The warmest days tend to fall around the 4th, averaging 7.9°C (46°F).

Compared to November, this month is about 3°C cooler with 0 fewer rainy days.

Monthly December Averages

Temperature

7°C / 3°C

Feels Like

4°C / 0°C

Rain

19 days · 205 mm

Sunshine

3.5h / day

Humidity

85% — Very Humid

Wind

18 km/h

Wind Direction

SE (133°)

Gusts

35 km/h

Daylight

8.5 h

Cloud Cover

79%

Clear Sky Days

UV Index

1 — Low

Dew Point

3°C — Dry

Moon Phase

Waxing Crescent · 31%

Snow Days

3 days · 5.4 cm

Frost Days

4 days

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

HighLow

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 07:52

Daylight 8.4h

Sunset 16:18

What to Expect

Cold daytime highs of 7°C (45°F) mean shorter outdoor excursions with warming breaks. Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Wet weather can spread across much of the day, so it is best to keep outdoor plans flexible.

3 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	8°C / 3°C	5°C / -1°C	18days (184 mm) Wet	4.3h Fair	84% Humid	1.2 Low	Wet	View Details
February	8°C / 2°C	5°C / -1°C	17days (147 mm) Wet	5.4h Fair	83% Humid	2 Low	Poor	View Details
March	11°C / 4°C	8°C / 0°C	17days (129 mm) Wet	7.6h Good	81% Humid	3.4 Moderate	Poor	View Details
April	14°C / 6°C	12°C / 3°C	16days (107 mm) Wet	9.4h Good	77% Humid	4.7 Moderate	Fair	View Details
May	18°C / 9°C	17°C / 7°C	12days (79 mm) Wet	11h Excellent	76% Humid	5.5 High	Good	View Details
June best	21°C / 12°C	21°C / 11°C	10days (70 mm) Wet	11.7h Excellent	74% Muggy	6.3 High	Excellent	View Details
July best	25°C / 14°C	25°C / 15°C	5days (21 mm) Good	12.7h Excellent	70% Muggy	6.9 High	Excellent	View Details
August best	25°C / 15°C	26°C / 15°C	5days (31 mm) Good	11.5h Excellent	71% Muggy	5.8 High	Excellent	View Details
September best	21°C / 13°C	21°C / 12°C	9days (73 mm) Wet	9.6h Good	77% Humid	4.6 Moderate	Excellent	View Details
October	15°C / 9°C	14°C / 6°C	16days (151 mm) Wet	7h Good	83% Humid	2.9 Moderate	Fair	View Details
November	10°C / 6°C	8°C / 3°C	19days (189 mm) Wet	4.6h Fair	85% Humid	1.6 Low	Wet	View Details
December	7°C / 3°C	4°C / 0°C	19days (205 mm) Wet	3.5h Poor	85% Humid	1 Low	Wet	View Details

What to Wear

Full winter gear is a must — insulated coat, thermal base layers, warm hat, gloves, and waterproof boots.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

Warm coatUmbrellaWaterproof jacketWaterproof shoes

Frequently Asked Questions

Expand all

Is December a good time to visit Bothell?

December is typically wet for visiting Bothell, with average highs of 7°C (45°F) and around 19 rainy days. Bothell, United States in December has cold conditions, with highs averaging around 7.4°C (45°F). Rain falls on about 19

Does it rain a lot in Bothell in December?

Bothell typically sees around 19 rainy days in December with 205 mm (8.1 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Bothell in December?

Yes, nights in Bothell during December are cold, averaging 3°C (38°F). Pack warm layers and a coat for evenings.

What should I pack for Bothell in December?

With highs of 7°C (45°F) and lows of 3°C (38°F) in December, we recommend: Warm coat, Umbrella, Waterproof jacket, Waterproof shoes. Comfortable walking shoes are essential.

Is December among the best months weather-wise in Bothell?

December is not the most favourable month weather-wise in Bothell. Consider visiting during months with milder temperatures or less rainfall for a better experience.

What is the UV index in Bothell in December?

The average UV index in Bothell during December is 1 (low). No special sun protection is needed.

How many hours of daylight are there in Bothell in December?

Bothell gets approximately 9 hours of daylight per day in December, with around 4 hours of sunshine.

Does it snow in Bothell in December?

Yes, Bothell typically sees around 3 snow days in December with roughly 5 cm (2 in) of snowfall.

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