Chatham Island weather by month

Check out Chatham Island weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature
Rainfall
Sunshine & UV index

Temperature in Chatham Island (°C)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	20	20	17	15	13	12	11	10	11	13	16	18
Min temperature (night-time)	17	16	13	11	9	7	6	6	6	9	12	15
Heat & Humidity	0	0	0	0	0	0	0	0	0	0	0	0
Sea temperature	15	15	15	14	13	12	11	11	11	11	12	13

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & UV index in Chatham Island

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daily hours of sunshine	6	5	4	3	3	2	2	3	4	4	5	5
Daily hours of daylight	15	14	12	11	10	9	9	10	12	13	15	15
UV Index (Maximum)	10	9	6	3	2	1	1	2	3	5	7	10

Rainfall in Chatham Island

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	19	18	20	16	10	5	4	1	3	4	6	12
Average monthly rainfall (mm)	53	60	74	75	90	96	90	81	72	56	54	56

More about Chatham Island

Chatham Island by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for New Zealand (Chatham Island) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Chatham Island?

Chatham Island has a temperate climate with warm summers and some rainfall in all months.

Chatham Island weather in January

Expect daytime maximum temperatures of 20°C in Chatham Island, New Zealand in January based on long-term weather averages. There are 6 hours of sunshine per day on average with 19 days with some rainfall and typically 53 mm of rainfall in the month.

20
20°C max day temperature
6
6 hours of sunshine per day
19
19 days with some rainfall
17
17°C min night temperature
15
15 hours of daylight per day
0
No heat & humidity
53
53 mm of monthly rainfall
10
10 (Very High) UV index
15
15°C sea temperature

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Chatham Island weather in February

Expect daytime maximum temperatures of 20°C in Chatham Island, New Zealand in February based on long-term weather averages. There are 5 hours of sunshine per day on average with 18 days with some rainfall and typically 60 mm of rainfall in the month.

20
20°C max day temperature
5
5 hours of sunshine per day
18
18 days with some rainfall
16
16°C min night temperature
14
14 hours of daylight per day
0
No heat & humidity
60
60 mm of monthly rainfall
9
9 (Very High) UV index
15
15°C sea temperature

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Chatham Island weather in March

Expect daytime maximum temperatures of 17°C in Chatham Island, New Zealand in March based on long-term weather averages. There are 4 hours of sunshine per day on average with 20 days with some rainfall and typically 74 mm of rainfall in the month.

17
17°C max day temperature
4
4 hours of sunshine per day
20
20 days with some rainfall
13
13°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
74
74 mm of monthly rainfall
6
6 (High) UV index
15
15°C sea temperature

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Chatham Island weather in April

Expect daytime maximum temperatures of 15°C in Chatham Island, New Zealand in April based on long-term weather averages. There are 3 hours of sunshine per day on average with 16 days with some rainfall and typically 75 mm of rainfall in the month.

15
15°C max day temperature
3
3 hours of sunshine per day
16
16 days with some rainfall
11
11°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
75
75 mm of monthly rainfall
3
3 (Moderate) UV index
14
14°C sea temperature

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Chatham Island weather in May

Expect daytime maximum temperatures of 13°C in Chatham Island, New Zealand in May based on long-term weather averages. There are 3 hours of sunshine per day on average with 10 days with some rainfall and typically 90 mm of rainfall in the month.

13
13°C max day temperature
3
3 hours of sunshine per day
10
10 days with some rainfall
9
9°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
90
90 mm of monthly rainfall
2
2 (Low) UV index
13
13°C sea temperature

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Chatham Island weather in June

Expect daytime maximum temperatures of 12°C in Chatham Island, New Zealand in June based on long-term weather averages. There are 2 hours of sunshine per day on average with typically 96 mm of rainfall in the month.

12
12°C max day temperature
2
2 hours of sunshine per day
5
5 days with some rainfall
7
7°C min night temperature
9
9 hours of daylight per day
0
No heat & humidity
96
96 mm of monthly rainfall
1
1 (Low) UV index
12
12°C sea temperature

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Chatham Island weather in July

Expect daytime maximum temperatures of 11°C in Chatham Island, New Zealand in July based on long-term weather averages. There are 2 hours of sunshine per day on average with typically 90 mm of rainfall in the month.

11
11°C max day temperature
2
2 hours of sunshine per day
4
4 days with some rainfall
6
6°C min night temperature
9
9 hours of daylight per day
0
No heat & humidity
90
90 mm of monthly rainfall
1
1 (Low) UV index
11
11°C sea temperature

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Chatham Island weather in August

Expect daytime maximum temperatures of 10°C in Chatham Island, New Zealand in August based on long-term weather averages. There are 3 hours of sunshine per day on average with typically 81 mm of rainfall in the month.

10
10°C max day temperature
3
3 hours of sunshine per day
1
1 day with some rainfall
6
6°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
81
81 mm of monthly rainfall
2
2 (Low) UV index
11
11°C sea temperature

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Chatham Island weather in September

Expect daytime maximum temperatures of 11°C in Chatham Island, New Zealand in September based on long-term weather averages. There are 4 hours of sunshine per day on average with typically 72 mm of rainfall in the month.

11
11°C max day temperature
4
4 hours of sunshine per day
3
3 days with some rainfall
6
6°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
72
72 mm of monthly rainfall
3
3 (Moderate) UV index
11
11°C sea temperature

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Chatham Island weather in October

Expect daytime maximum temperatures of 13°C in Chatham Island, New Zealand in October based on long-term weather averages. There are 4 hours of sunshine per day on average with typically 56 mm of rainfall in the month.

13
13°C max day temperature
4
4 hours of sunshine per day
4
4 days with some rainfall
9
9°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
56
56 mm of monthly rainfall
5
5 (Moderate) UV index
11
11°C sea temperature

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Chatham Island weather in November

Expect daytime maximum temperatures of 16°C in Chatham Island, New Zealand in November based on long-term weather averages. There are 5 hours of sunshine per day on average with typically 54 mm of rainfall in the month.

16
16°C max day temperature
5
5 hours of sunshine per day
6
6 days with some rainfall
12
12°C min night temperature
15
15 hours of daylight per day
0
No heat & humidity
54
54 mm of monthly rainfall
7
7 (High) UV index
12
12°C sea temperature

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Chatham Island weather in December

Expect daytime maximum temperatures of 18°C in Chatham Island, New Zealand in December based on long-term weather averages. There are 5 hours of sunshine per day on average with 12 days with some rainfall and typically 56 mm of rainfall in the month.

18
18°C max day temperature
5
5 hours of sunshine per day
12
12 days with some rainfall
15
15°C min night temperature
15
15 hours of daylight per day
0
No heat & humidity
56
56 mm of monthly rainfall
10
10 (Very High) UV index
13
13°C sea temperature

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