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New Zealand weather

Weather in Greymouth for December 2026

Your guide to Greymouth weather in December - trends and predictions

    Rain 🌧️

  • Greymouth experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 322.5 mm.

    • More

  • Is December a good time to visit Greymouth? check out the best time to travel to Greymouth page.

Average dry days
10
Dry days
Average rainy days
21
Rainy days
Average snowy days
0
Snow days
Average temperatures
17°/11°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
79 %
Avg humidity

Greymouth Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Light rain
16°
2
Light rain
16°
3
Moderate rain
17°
4
Moderate or heavy rain shower
16°
5
Moderate rain
17°
6
Light rain
17°
7
Light rain
17°
8
Heavy rain
16°
9
Light rain
16°
10
Patchy rain possible
17°
11
Patchy rain possible
16°
12
Patchy rain possible
17°
13
Light rain
17°
14
Moderate rain
17°
15
Heavy rain
18°
16
Moderate rain
16°
17
Sunny
18°
18
Sunny
17°
19
Moderate rain
18°
20
Moderate rain
16°
21
Light rain
17°
22
Moderate rain
17°
23
Light rain
18°
24
Light rain
18°
25
Heavy rain
15°
26
Moderate rain
18°
27
Patchy rain possible
19°
28
Overcast
19°
29
Moderate rain
20°
30
Moderate rain at times
18°
31
Sunny
20°

Temperatures trend during December in Greymouth

See the weather trend as well as the moving average line

December weather in Greymouth day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
1 Dec. Light rain
Light rain
 16° /10° 3.5 mm 7
2 Dec. Light rain
Light rain
 16° /10° 6.5 mm 7
3 Dec. Moderate rain
Moderate rain
 17° /11° 14.2 mm 7
4 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 16° /11° 7.6 mm 7
5 Dec. Moderate rain
Moderate rain
 17° /12° 10.8 mm 7
6 Dec. Light rain
Light rain
 17° /13° 5.3 mm 7
7 Dec. Light rain
Light rain
 17° /14° 4.2 mm 7
8 Dec. Heavy rain
Heavy rain
 16° /12° 46.2 mm 7
9 Dec. Light rain
Light rain
 16° /11° 5.8 mm 8
10 Dec. Patchy rain possible
Patchy rain possible
 17° /10° 0.9 mm 8
11 Dec. Patchy rain possible
Patchy rain possible
 16° /10° 2.1 mm 7
12 Dec. Patchy rain possible
Patchy rain possible
 17° /10° 1.2 mm 7
13 Dec. Light rain
Light rain
 17° /11° 3.5 mm 8
14 Dec. Moderate rain
Moderate rain
 17° /12° 20.9 mm 7
15 Dec. Heavy rain
Heavy rain
 18° /14° 38.3 mm 7
16 Dec. Moderate rain
Moderate rain
 16° /10° 19.1 mm 7
17 Dec. Sunny
Sunny
 18° /7° 0.2 mm 8
18 Dec. Sunny
Sunny
 17° /10° 0.6 mm 8
19 Dec. Moderate rain
Moderate rain
 18° /10° 10.5 mm 8
20 Dec. Moderate rain
Moderate rain
 16° /11° 12.9 mm 6
21 Dec. Light rain
Light rain
 17° /12° 4.5 mm 6
22 Dec. Moderate rain
Moderate rain
 17° /11° 23.8 mm 7
23 Dec. Light rain
Light rain
 18° /13° 5.4 mm 6
24 Dec. Light rain
Light rain
 18° /13° 5.8 mm 6
25 Dec. Heavy rain
Heavy rain
 15° /13° 30.1 mm 5
26 Dec. Moderate rain
Moderate rain
 18° /11° 17.7 mm 6
27 Dec. Patchy rain possible
Patchy rain possible
 19° /10° 1.9 mm 9
28 Dec. Overcast
Overcast
 19° /11° 0 mm 9
29 Dec. Moderate rain
Moderate rain
 20° /12° 10.6 mm 9
30 Dec. Moderate rain at times
Moderate rain at times
 18° /12° 7.8 mm 8
31 Dec. Sunny
Sunny
 20° /11° 0.5 mm 7
Next
Important Notice
Our weather forecast for Greymouth 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 Greymouth forecast closer to your planned date for the most up-to-date weather information.
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Greymouth in December - FAQ

What are the expected maximum and minimum temperatures in Greymouth during December?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Greymouth during December?
Significant rainfall exceeding 322.5 mm is expected in Greymouth during December, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Greymouth during December?
The average wind speed in Greymouth during December is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Greymouth

Explore the daily rainfall trends and prepare for Greymouths December weather 💧
Typically, Greymouth has 21 rainy days in December with a total of 322.5 mm of rainfall.
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Get accurate weather forecasts for Greymouth, located at latitude -42.467 and longitude 171.2. Stay updated with localized weather information tailored for Greymouth.

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