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Monthly climate in Greymouth, New Zealand

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Greymouth features a oceanic climate (Cfb).Temperatures typically range between 8 °C (47 °F) and 17 °C (62 °F) through the year, but rarely can drop to 0 °C (32 °F) or can rise to as high as 28 °C (83 °F).The average annual precipitation amounts to about 2672 mm (105.2 inches) and receives 192 rainy days on the 1 mm (0.04 inches) threshold annually.Greymouth enjoys an average of 2720 hours of sunshine throughout the year, and daylight varies from 9 hours 6 minutes to 15 hours 12 minutes per day.

Monthly average temperatures in Greymouth, New Zealand §

The warmest months in Greymouth are January, February and March, with daily mean temperatures ranging from 16 to 17 °C (61 - 62 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 8 to 9 °C (47 - 49 °F) throughout the day. On average each year, Greymouth experiences 0 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Greymouth, New Zealand.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 26°C
(80°F)		 28°C
(83°F)		 24°C
(76°F)		 22°C
(72°F)		 19°C
(67°F)		 18°C
(65°F)		 15°C
(60°F)		 17°C
(63°F)		 18°C
(64°F)		 20°C
(68°F)		 23°C
(74°F)		 24°C
(75°F)
Mean maximum 24°C
(75°F)		 24°C
(76°F)		 23°C
(73°F)		 20°C
(69°F)		 18°C
(64°F)		 16°C
(61°F)		 14°C
(58°F)		 16°C
(60°F)		 17°C
(63°F)		 19°C
(66°F)		 22°C
(72°F)		 23°C
(73°F)
Average high 20°C
(68°F)		 20°C
(69°F)		 20°C
(68°F)		 17°C
(62°F)		 14°C
(58°F)		 13°C
(55°F)		 12°C
(54°F)		 13°C
(55°F)		 14°C
(57°F)		 15°C
(59°F)		 17°C
(64°F)		 19°C
(67°F)
Daily mean 16°C
(62°F)		 17°C
(62°F)		 16°C
(61°F)		 13°C
(56°F)		 11°C
(52°F)		 9°C
(48°F)		 8°C
(47°F)		 9°C
(49°F)		 10°C
(50°F)		 12°C
(53°F)		 14°C
(57°F)		 16°C
(61°F)
Average low 13°C
(56°F)		 13°C
(55°F)		 12°C
(54°F)		 9°C
(49°F)		 8°C
(46°F)		 5°C
(42°F)		 5°C
(41°F)		 6°C
(43°F)		 6°C
(43°F)		 8°C
(47°F)		 10°C
(50°F)		 12°C
(54°F)
Mean minimum 9°C
(49°F)		 7°C
(46°F)		 8°C
(46°F)		 5°C
(41°F)		 2°C
(36°F)		 3°C
(38°F)		 1°C
(34°F)		 1°C
(34°F)		 1°C
(34°F)		 3°C
(38°F)		 5°C
(42°F)		 8°C
(47°F)
Minimum 7°C
(45°F)		 6°C
(43°F)		 6°C
(44°F)		 2°C
(36°F)		 0°C
(33°F)		 0°C
(33°F)		 0°C
(33°F)		 0°C
(33°F)		 -0°C
(32°F)		 2°C
(36°F)		 4°C
(40°F)		 6°C
(43°F)

Compare climate in Greymouth with other places

Compare temperature, precipitation, sunshine, UV index in Greymouth, New Zealand with other places around the world.

Monthly average precipitation in Greymouth, New Zealand §

Greymouth usually has the most precipitation in September, November and December, with an average of 16 rainy days and 258 mm (10.2 inches) of precipitation per month.The driest months in Greymouth are January, February and June. On average, 170 mm (6.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Greymouth, New Zealand.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 202 (7.9) 175 (6.9) 213 (8.4) 217 (8.5) 238 (9.4) 134 (5.3) 251 (9.9) 237 (9.3) 262 (10.3) 231 (9.1) 257 (10.1) 256 (10.1)
Average precipitation days (≥ 1 mm) 15 13 15 15 16 12 16 20 17 20 16 17

Monthly sunshine hours in Greymouth, New Zealand §

The sunniest months in Greymouth are February, November and December, when the sun shines an average of 9 hours 25 minutes a day.Least sunny months in Greymouth: May, June and July receive an average of 5 hours 39 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Greymouth, New Zealand.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 247 278 243 210 180 163 176 194 216 238 267 302
Mean daily daylight hours 14h 52m 13h 44m 12h 19m 10h 54m 9h 42m 9h 6m 9h 23m 10h 26m 11h 48m 13h 14m 14h 31m 15h 12m

Solar UV radiation in Greymouth, New Zealand §

Greymouth experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 12 - 13, which corresponds to the Extreme category of sun exposure.May, June and July are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Greymouth UV Index data.

Average daily maximum UV levels by month for Greymouth, New Zealand.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 13 13 9 6 4 2 2 4 6 9 10 12