Sunset, United States — Weather in December 2026

Monthly climate averages for Sunset, United States. Based on 10-year ERA5 reanalysis data.

Am Tropical Monsoon
9 /10
Excellent

December is an excellent month in Sunset

Climate Overview

Sunset, United States in December has warm conditions, with highs averaging 25.3°C (78°F). Sea temperature averages 23.5°C (74°F).

This month falls at the beginning of Winter.

Temperatures remain fairly steady throughout December, with daily highs around 25°C (77°F).

Rainfall is heaviest during the last third of the month, while the first third tends to be drier.

Expect around 9.4h of sunshine at the start of December, decreasing to 8.4h by the end.

The warmest days tend to fall around the 6th, averaging 26.1°C (79°F).

Compared to November, this month is about 1°C cooler with 2 fewer rainy days.

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Monthly December Averages

Temperature
25°C / 19°C
Feels Like
26°C / 18°C
Rain
8 days · 65 mm
Sunshine
8.6h / day
Humidity
77% — Humid
Wind
21 km/h
Wind Direction
ENE (63°)
Gusts
37 km/h
Daylight
10.6 h
Cloud Cover
51%
Clear Sky Days
4.1
UV Index
4.5 — Moderate
Sea Temperature
24°C
Dew Point
18°C — Humid
Moon Phase
Waxing Crescent · 31%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

32°C 29°C 26°C 23°C 20°C 17°C 14°C 151015202531
HighLow

Daily Precipitation

0 mm 2 mm 4 mm 6 mm 151015202531
Rainfall

Daily Sunshine

0h 3h 6h 9h 12h 151015202531
Sunshine

Daily Wind Speed

0 6 12 18 24 30 151015202531
Wind Speed
Sun Position
Sunrise 07:02
Daylight 10.5h
Sunset 17:34

What to Expect

Daytime temperatures around 25°C (78°F) are ideal for full-day outdoor exploration.

Rain usually comes in shorter passing showers rather than all-day rain.

Recent yearly records for December have stayed close to the long-run average.

Compare Months

January best
Excellent
Temp
24°C / 17°C
Feels Like
24°C / 15°C
Rain
8days (52 mm) Wet
Sun
8.5h Good
Humidity
74% Muggy
UV
4.7 Moderate
View Details
February best
Excellent
Temp
26°C / 19°C
Feels Like
27°C / 19°C
Rain
6days (38 mm) Good
Sun
9.9h Good
Humidity
75% Muggy
UV
6.2 High
View Details
March best
Excellent
Temp
27°C / 19°C
Feels Like
28°C / 19°C
Rain
5days (39 mm) Good
Sun
10.5h Excellent
Humidity
69% Muggy
UV
7.4 Very High
View Details
April
Good
Temp
29°C / 21°C
Feels Like
30°C / 22°C
Rain
10days (56 mm) Wet
Sun
11.3h Excellent
Humidity
70% Muggy
UV
8.4 Very High
View Details
May
Fair
Temp
30°C / 23°C
Feels Like
33°C / 25°C
Rain
14days (120 mm) Wet
Sun
11.4h Excellent
Humidity
74% Muggy
UV
8.7 Very High
View Details
June
Wet
Temp
30°C / 25°C
Feels Like
36°C / 29°C
Rain
21days (199 mm) Wet
Sun
10.7h Excellent
Humidity
82% Humid
UV
8 Very High
View Details
July
Wet
Temp
31°C / 25°C
Feels Like
37°C / 30°C
Rain
23days (138 mm) Wet
Sun
11.3h Excellent
Humidity
82% Humid
UV
8.3 Very High
View Details
August
Wet
Temp
31°C / 25°C
Feels Like
37°C / 30°C
Rain
24days (180 mm) Wet
Sun
10.6h Excellent
Humidity
83% Humid
UV
8.3 Very High
View Details
September
Wet
Temp
30°C / 25°C
Feels Like
36°C / 29°C
Rain
23days (211 mm) Wet
Sun
9.8h Good
Humidity
84% Humid
UV
7.6 Very High
View Details
October
Good
Temp
29°C / 23°C
Feels Like
32°C / 26°C
Rain
17days (132 mm) Wet
Sun
9.3h Good
Humidity
80% Humid
UV
6.5 High
View Details
November best
Excellent
Temp
27°C / 20°C
Feels Like
28°C / 21°C
Rain
10days (78 mm) Wet
Sun
9.2h Good
Humidity
77% Humid
UV
5.4 High
View Details
December best
Excellent
Temp
25°C / 19°C
Feels Like
26°C / 18°C
Rain
8days (65 mm) Wet
Sun
8.6h Good
Humidity
77% Humid
UV
4.5 Moderate
View Details
Month Temp Feels Like Rain Sun Humidity UV Status
January best 24°C / 17°C 24°C / 15°C 8days (52 mm) Wet 8.5h Good 74% Muggy 4.7 Moderate Excellent View Details
February best 26°C / 19°C 27°C / 19°C 6days (38 mm) Good 9.9h Good 75% Muggy 6.2 High Excellent View Details
March best 27°C / 19°C 28°C / 19°C 5days (39 mm) Good 10.5h Excellent 69% Muggy 7.4 Very High Excellent View Details
April 29°C / 21°C 30°C / 22°C 10days (56 mm) Wet 11.3h Excellent 70% Muggy 8.4 Very High Good View Details
May 30°C / 23°C 33°C / 25°C 14days (120 mm) Wet 11.4h Excellent 74% Muggy 8.7 Very High Fair View Details
June 30°C / 25°C 36°C / 29°C 21days (199 mm) Wet 10.7h Excellent 82% Humid 8 Very High Wet View Details
July 31°C / 25°C 37°C / 30°C 23days (138 mm) Wet 11.3h Excellent 82% Humid 8.3 Very High Wet View Details
August 31°C / 25°C 37°C / 30°C 24days (180 mm) Wet 10.6h Excellent 83% Humid 8.3 Very High Wet View Details
September 30°C / 25°C 36°C / 29°C 23days (211 mm) Wet 9.8h Good 84% Humid 7.6 Very High Wet View Details
October 29°C / 23°C 32°C / 26°C 17days (132 mm) Wet 9.3h Good 80% Humid 6.5 High Good View Details
November best 27°C / 20°C 28°C / 21°C 10days (78 mm) Wet 9.2h Good 77% Humid 5.4 High Excellent View Details
December best 25°C / 19°C 26°C / 18°C 8days (65 mm) Wet 8.6h Good 77% Humid 4.5 Moderate Excellent View Details

What to Wear

Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces.

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

Packing List

UmbrellaBreathable clothingSunscreen (SPF 30+)Sun hatSunglassesComfortable walking shoes

Frequently Asked Questions

December is typically excellent for visiting Sunset, with average highs of 25°C (78°F) and around 8 rainy days. Sunset, United States in December has warm conditions, with highs averaging 25.3°C (78°F). Sea temperature averages 23.5
Sunset typically sees around 8 rainy days in December with 65 mm (2.6 in) of total rainfall. An umbrella should suffice.
Nights stay pleasantly warm in Sunset during December, around 19°C (65°F). Light evening wear is sufficient.
With highs of 25°C (78°F) and lows of 19°C (65°F) in December, we recommend: Umbrella, Breathable clothing, Sunscreen (SPF 30+), Sun hat, Sunglasses. Comfortable walking shoes are essential.
Yes, December offers some of the best weather conditions in Sunset with comfortable temperatures and lower chances of rain.
The average UV index in Sunset during December is 5 (moderate). Sunscreen and sunglasses are recommended during midday hours.
Sunset gets approximately 11 hours of daylight per day in December, with around 9 hours of sunshine.
Snow is uncommon in Sunset during December based on 10-year climate averages.

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