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Greymouth Climate Guide
New Zealand
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Maximum Daytime Temperature (°C)
Minimum Night-time Temperature (°C)
20
20 °C (68°F) Maximum Daytime Temperature in January
20
20 °C (68°F) Maximum Daytime Temperature in February
19
19 °C (66°F) Maximum Daytime Temperature in March
16
16 °C (61°F) Maximum Daytime Temperature in April
13
13 °C (55°F) Maximum Daytime Temperature in May
11
11 °C (52°F) Maximum Daytime Temperature in June
11
11 °C (52°F) Maximum Daytime Temperature in July
12
12 °C (54°F) Maximum Daytime Temperature in August
14
14 °C (57°F) Maximum Daytime Temperature in September
15
15 °C (59°F) Maximum Daytime Temperature in October
17
17 °C (63°F) Maximum Daytime Temperature in November
19
19 °C (66°F) Maximum Daytime Temperature in December
J F M A M J J A S O N D
11
11 °C (52°F) Minimum Night-time Temperature in January
11
11 °C (52°F) Minimum Night-time Temperature in February
10
10 °C (50°F) Minimum Night-time Temperature in March
8
8 °C (46°F) Minimum Night-time Temperature in April
5
5 °C (41°F) Minimum Night-time Temperature in May
3
3 °C (37°F) Minimum Night-time Temperature in June
2
2 °C (36°F) Minimum Night-time Temperature in July
4
4 °C (39°F) Minimum Night-time Temperature in August
5
5 °C (41°F) Minimum Night-time Temperature in September
7
7 °C (45°F) Minimum Night-time Temperature in October
8
8 °C (46°F) Minimum Night-time Temperature in November
10
10 °C (50°F) Minimum Night-time Temperature in December
J F M A M J J A S O N D
Hours of Sunshine
Hours of Daylight
6
6 Hours of Sunshine (42% of Daylight Hours) in January
6
6 Hours of Sunshine (44% of Daylight Hours) in February
5
5 Hours of Sunshine (40% of Daylight Hours) in March
4
4 Hours of Sunshine (40% of Daylight Hours) in April
3
3 Hours of Sunshine (35% of Daylight Hours) in May
3
3 Hours of Sunshine (34% of Daylight Hours) in June
3
3 Hours of Sunshine (36% of Daylight Hours) in July
4
4 Hours of Sunshine (39% of Daylight Hours) in August
5
5 Hours of Sunshine (38% of Daylight Hours) in September
5
5 Hours of Sunshine (36% of Daylight Hours) in October
6
6 Hours of Sunshine (38% of Daylight Hours) in November
6
6 Hours of Sunshine (39% of Daylight Hours) in December
J F M A M J J A S O N D
15
15 Hours of Daylight in January
14
14 Hours of Daylight in February
12
12 Hours of Daylight in March
11
11 Hours of Daylight in April
10
10 Hours of Daylight in May
9
9 Hours of Daylight in June
9
9 Hours of Daylight in July
11
11 Hours of Daylight in August
12
12 Hours of Daylight in September
13
13 Hours of Daylight in October
15
15 Hours of Daylight in November
15
15 Hours of Daylight in December
J F M A M J J A S O N D
Days with some Rain
Monthly Rainfall (mm)
17
17 Days with some Rain in January
13
13 Days with some Rain in February
16
16 Days with some Rain in March
17
17 Days with some Rain in April
18
18 Days with some Rain in May
17
17 Days with some Rain in June
17
17 Days with some Rain in July
17
17 Days with some Rain in August
20
20 Days with some Rain in September
21
21 Days with some Rain in October
18
18 Days with some Rain in November
20
20 Days with some Rain in December
J F M A M J J A S O N D
263
263 mm (10.4 inches) Monthly Rainfall in January
183
183 mm (7.2 inches) Monthly Rainfall in February
240
240 mm (9.4 inches) Monthly Rainfall in March
271
271 mm (10.7 inches) Monthly Rainfall in April
291
291 mm (11.5 inches) Monthly Rainfall in May
259
259 mm (10.2 inches) Monthly Rainfall in June
251
251 mm (9.9 inches) Monthly Rainfall in July
248
248 mm (9.8 inches) Monthly Rainfall in August
302
302 mm (11.9 inches) Monthly Rainfall in September
311
311 mm (12.2 inches) Monthly Rainfall in October
311
311 mm (12.2 inches) Monthly Rainfall in November
273
273 mm (10.7 inches) Monthly Rainfall in December
J F M A M J J A S O N D
Heat & Humidity / Chance of Frost
UV Index (Maximum)
-
No Heat & Humidity or Frost in January
-
No Heat & Humidity or Frost in February
-
No Heat & Humidity or Frost in March
-
No Heat & Humidity or Frost in April
6
6 Days with Frost in May
9
9 Days with Frost in June
11
11 Days with Frost in July
9
9 Days with Frost in August
5
5 Days with Frost in September
-
No Heat & Humidity or Frost in October
-
No Heat & Humidity or Frost in November
-
No Heat & Humidity or Frost in December
J F M A M J J A S O N D
11
UV 11 (Extreme) in January
9
UV 9 (Very High) in February
7
UV 7 (High) in March
4
UV 4 (Moderate) in April
2
UV 2 (Low) in May
1
UV 1 (Low) in June
1
UV 1 (Low) in July
2
UV 2 (Low) in August
4
UV 4 (Moderate) in September
6
UV 6 (High) in October
8
UV 8 (Very High) in November
10
UV 10 (Very High) in December
J F M A M J J A S O N D
Sea Temperature (°C)
17
17 °C (63°F) Sea Temperature in January
18
18 °C (64°F) Sea Temperature in February
17
17 °C (63°F) Sea Temperature in March
16
16 °C (61°F) Sea Temperature in April
15
15 °C (59°F) Sea Temperature in May
14
14 °C (57°F) Sea Temperature in June
13
13 °C (55°F) Sea Temperature in July
13
13 °C (55°F) Sea Temperature in August
13
13 °C (55°F) Sea Temperature in September
13
13 °C (55°F) Sea Temperature in October
15
15 °C (59°F) Sea Temperature in November
16
16 °C (61°F) Sea Temperature in December
J F M A M J J A S O N D
Greymouth Climate Guide (Historical Weather Averages), New Zealand
Elev: 0 m   Long: 171°12'E   Lat: 42°28'S
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