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Monthly climate in Grafton, New South Wales, Australia

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Grafton features a humid subtropical climate (Cfa). Temperatures typically range between 13 °C (56 °F) and 24 °C (76 °F) through the year, but rarely can drop to 1 °C (34 °F) or can rise to as high as 42 °C (107 °F). The average annual precipitation amounts to about 990 mm (39.0 inches) and receives 110 rainy days on the 1 mm (0.04 inches) threshold annually. Grafton enjoys an average of 3342 hours of sunshine throughout the year, and daylight varies from 10 hours 15 minutes to 13 hours 59 minutes per day.

Monthly average temperatures in Grafton, New South Wales, Australia §

The warmest months in Grafton are January, February and December, with daily mean temperatures ranging from 23 to 24 °C (74 - 76 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 13 to 14 °C (56 - 57 °F) throughout the day. On average each year, Grafton experiences 150 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 Grafton, New South Wales, Australia. 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 38°C
(100°F)		 42°C
(107°F)		 35°C
(95°F)		 31°C
(88°F)		 28°C
(82°F)		 24°C
(76°F)		 25°C
(78°F)		 31°C
(87°F)		 35°C
(96°F)		 35°C
(95°F)		 38°C
(100°F)		 37°C
(98°F)
Mean maximum 35°C
(95°F)		 36°C
(97°F)		 33°C
(91°F)		 29°C
(85°F)		 26°C
(79°F)		 22°C
(72°F)		 24°C
(76°F)		 28°C
(83°F)		 31°C
(88°F)		 32°C
(91°F)		 34°C
(94°F)		 36°C
(96°F)
Average high 29°C
(85°F)		 28°C
(83°F)		 27°C
(80°F)		 24°C
(76°F)		 22°C
(72°F)		 20°C
(67°F)		 20°C
(68°F)		 22°C
(71°F)		 24°C
(75°F)		 25°C
(78°F)		 27°C
(81°F)		 29°C
(84°F)
Daily mean 24°C
(76°F)		 24°C
(75°F)		 22°C
(72°F)		 19°C
(67°F)		 16°C
(62°F)		 14°C
(57°F)		 13°C
(56°F)		 14°C
(57°F)		 17°C
(63°F)		 19°C
(67°F)		 21°C
(70°F)		 23°C
(74°F)
Average low 20°C
(68°F)		 20°C
(68°F)		 19°C
(66°F)		 15°C
(59°F)		 12°C
(54°F)		 9°C
(49°F)		 8°C
(46°F)		 8°C
(46°F)		 11°C
(51°F)		 14°C
(58°F)		 16°C
(61°F)		 19°C
(66°F)
Mean minimum 17°C
(62°F)		 17°C
(62°F)		 15°C
(59°F)		 11°C
(52°F)		 7°C
(45°F)		 5°C
(41°F)		 2°C
(36°F)		 3°C
(37°F)		 6°C
(43°F)		 9°C
(49°F)		 11°C
(53°F)		 14°C
(58°F)
Minimum 13°C
(56°F)		 15°C
(59°F)		 13°C
(56°F)		 7°C
(46°F)		 4°C
(39°F)		 3°C
(37°F)		 1°C
(34°F)		 1°C
(34°F)		 5°C
(41°F)		 8°C
(47°F)		 10°C
(51°F)		 13°C
(56°F)

Compare climate in Grafton with other places

Compare temperature, precipitation, sunshine, UV index in Grafton, New South Wales, Australia with other places around the world.

Monthly average precipitation in Grafton, New South Wales, Australia §

Grafton usually has the most precipitation in February, March and December, with an average of 14 rainy days and 173 mm (6.8 inches) of precipitation per month. The driest months in Grafton are July, August and September. On average, 26 mm (1.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Grafton, New South Wales, Australia. 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) 79 (3.1) 153 (6.0) 191 (7.5) 47 (1.8) 35 (1.4) 54 (2.1) 33 (1.3) 20 (0.8) 24 (0.9) 112 (4.4) 67 (2.6) 176 (6.9)
Average precipitation days (≥ 1 mm) 11 13 16 9 5 6 5 3 6 11 11 14

Monthly sunshine hours in Grafton, New South Wales, Australia §

The sunniest months in Grafton are September, November and December, when the sun shines an average of 10 hours 11 minutes a day. Least sunny months in Grafton: May, June and July receive an average of 8 hours 12 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Grafton, New South Wales, Australia. 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 268 276 266 271 256 241 257 288 294 287 314 318
Mean daily daylight hours 13h 47m 13h 6m 12h 14m 11h 20m 10h 37m 10h 15m 10h 26m 11h 4m 11h 54m 12h 47m 13h 35m 13h 59m

Solar UV radiation in Grafton, New South Wales, Australia §

Grafton experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 15 - 15, which corresponds to the Extreme category of sun exposure. May, June and July are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 7. For more detailed information, check out our hourly Grafton UV Index data.

Average daily maximum UV levels by month for Grafton, New South Wales, Australia. 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) 15 15 13 9 7 4 5 7 9 11 13 15

Detailed Monthly Weather Insights for Grafton, New South Wales, Australia

Discover in-depth weather details for every month in Grafton. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Grafton's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.