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Weather in Hayward for December 2025

Your guide to Hayward weather in December - trends and predictions

    Temperatures

  • In general, the average temperature in Hayward at the beginning of December is 15.9 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 13.1 °F by the end of December.

    • Rain 🌧️

  • The climate of Hayward in December is notably wet, with an average of 12 rainy days, and a total of 180.4 mm of precipitation.

    • More

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Average dry days
19
Dry days
Average rainy days
12
Rainy days
Average snowy days
0
Snow days
Average temperatures
14°/7°
Temperatures
Average wind speed
10 km/h
Avg max wind
Average humidity
76 %
Avg humidity

Hayward Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Cloudy
18°
2
Patchy rain possible
16°
3
Fog
16°
4
Fog
16°
5
Mist
16°
6
Moderate rain
15°
7
Light drizzle
14°
8
Mist
15°
9
Overcast
14°
10
Overcast
15°
11
Overcast
16°
12
Overcast
14°
13
Overcast
14°
14
Overcast
13°
15
Sunny
11°
16
Partly cloudy
14°
17
Partly cloudy
15°
18
Light rain shower
14°
19
Moderate or heavy rain with thunder
15°
20
Light rain shower
14°
21
Partly cloudy
13°
22
Sunny
16°
23
Partly cloudy
16°
24
Overcast
14°
25
Cloudy
13°
26
Cloudy
14°
27
Moderate or heavy rain with thunder
14°
28
Patchy rain possible
14°
29
Light rain shower
14°
30
Light rain shower
12°
31
Light rain shower
11°
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Temperatures trend during December in Hayward

See the weather trend as well as the moving average line

December weather day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
Dec. 1 Cloudy
Cloudy
 18° /7° 0 mm 5
Dec. 2 Patchy rain possible
Patchy rain possible
 16° /8° 0.1 mm 5
Dec. 3 Fog
Fog
 16° /7° 0 mm 4
Dec. 4 Fog
Fog
 16° /9° 0 mm 5
Dec. 5 Mist
Mist
 16° /7° 0 mm 4
Dec. 6 Moderate rain
Moderate rain
 15° /7° 2.4 mm 4
Dec. 7 Light drizzle
Light drizzle
 14° /6° 0.5 mm 3
Dec. 8 Mist
Mist
 15° /4° 0 mm 4
Dec. 9 Overcast
Overcast
 14° /4° 0 mm 4
Dec. 10 Overcast
Overcast
 15° /2° 0 mm 4
Dec. 11 Overcast
Overcast
 16° /5° 0 mm 5
Dec. 12 Overcast
Overcast
 14° /8° 19.1 mm 4
Dec. 13 Overcast
Overcast
 14° /7° 0 mm 4
Dec. 14 Overcast
Overcast
 13° /7° 44.8 mm 4
Dec. 15 Sunny
Sunny
 11° /5° 0 mm 4
Dec. 16 Partly cloudy
Partly cloudy
 14° /7° 3.9 mm 4
Dec. 17 Partly cloudy
Partly cloudy
 15° /9° 0.1 mm 4
Dec. 18 Light rain shower
Light rain shower
 14° /7° 7 mm 3
Dec. 19 Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 15° /9° 9.1 mm 4
Dec. 20 Light rain shower
Light rain shower
 14° /8° 12 mm 4
Dec. 21 Partly cloudy
Partly cloudy
 13° /9° 1.7 mm 4
Dec. 22 Sunny
Sunny
 16° /9° 0 mm 5
Dec. 23 Partly cloudy
Partly cloudy
 16° /10° 0 mm 5
Dec. 24 Overcast
Overcast
 14° /8° 33.1 mm 3
Dec. 25 Cloudy
Cloudy
 13° /6° 0 mm 4
Dec. 26 Cloudy
Cloudy
 14° /7° 0 mm 4
Dec. 27 Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 14° /9° 27.7 mm 4
Dec. 28 Patchy rain possible
Patchy rain possible
 14° /11° 0.2 mm 4
Dec. 29 Light rain shower
Light rain shower
 14° /9° 15.8 mm 4
Dec. 30 Light rain shower
Light rain shower
 12° /6° 2.5 mm 3
Dec. 31 Light rain shower
Light rain shower
 11° /4° 0.4 mm 3
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Important Notice
Our weather forecast for Hayward in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Hayward forecast closer to your planned date for the most up-to-date weather information.

Hayward in December - FAQ

What are the expected maximum and minimum temperatures in Hayward during December?
During December, expect a variety of temperatures with highs around 14° and lows near 7°, suitable for diverse activities and preferences.
How much rainfall should be expected in Hayward during December?
Significant rainfall exceeding 180.4 mm is expected in Hayward during December, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Hayward during December?
The average wind speed in Hayward during December is 10 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Hayward

Explore the daily rainfall trends and prepare for Haywards December weather 💧

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Location coordinates Where is Hayward?

Get accurate weather forecasts for Hayward, located at latitude 37.669 and longitude -122.081. Stay updated with localized weather information tailored for Hayward.

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