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Monthly climate in Lewiston, South Australia, Australia

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Lewiston features a warm-summer Mediterranean climate (Csb).Temperatures typically range between 11 °C (52 °F) and 23 °C (74 °F) through the year, but rarely can drop to 1 °C (34 °F) or can rise to as high as 47 °C (116 °F).The average annual precipitation amounts to about 352 mm (13.8 inches) and receives 68 rainy days on the 1 mm (0.04 inches) threshold annually.Lewiston enjoys an average of 3380 hours of sunshine throughout the year, and daylight varies from 9 hours 51 minutes to 14 hours 24 minutes per day.

Monthly average temperatures in Lewiston, South Australia, Australia §

The warmest months in Lewiston are January, February and December, with daily mean temperatures ranging from 21 to 23 °C (70 - 74 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 11 to 11 °C (52 - 52 °F) throughout the day. On average each year, Lewiston experiences 91 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 Lewiston, South Australia, 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 47°C
(116°F)		 41°C
(106°F)		 40°C
(104°F)		 37°C
(98°F)		 29°C
(84°F)		 22°C
(71°F)		 21°C
(71°F)		 25°C
(77°F)		 29°C
(85°F)		 37°C
(98°F)		 42°C
(108°F)		 44°C
(111°F)
Mean maximum 42°C
(108°F)		 37°C
(98°F)		 35°C
(95°F)		 32°C
(90°F)		 25°C
(76°F)		 19°C
(67°F)		 20°C
(69°F)		 23°C
(73°F)		 29°C
(84°F)		 32°C
(90°F)		 38°C
(100°F)		 39°C
(103°F)
Average high 29°C
(84°F)		 27°C
(81°F)		 26°C
(79°F)		 23°C
(74°F)		 18°C
(65°F)		 16°C
(60°F)		 15°C
(60°F)		 15°C
(60°F)		 19°C
(66°F)		 22°C
(71°F)		 24°C
(76°F)		 27°C
(81°F)
Daily mean 23°C
(74°F)		 22°C
(71°F)		 21°C
(69°F)		 18°C
(64°F)		 14°C
(57°F)		 11°C
(52°F)		 11°C
(52°F)		 11°C
(52°F)		 13°C
(56°F)		 16°C
(61°F)		 19°C
(66°F)		 21°C
(70°F)
Average low 17°C
(64°F)		 17°C
(62°F)		 16°C
(60°F)		 13°C
(56°F)		 10°C
(50°F)		 7°C
(45°F)		 7°C
(46°F)		 7°C
(45°F)		 9°C
(48°F)		 11°C
(52°F)		 13°C
(56°F)		 15°C
(60°F)
Mean minimum 13°C
(55°F)		 12°C
(53°F)		 11°C
(52°F)		 9°C
(48°F)		 6°C
(42°F)		 4°C
(39°F)		 3°C
(38°F)		 2°C
(36°F)		 4°C
(39°F)		 6°C
(43°F)		 8°C
(46°F)		 10°C
(50°F)
Minimum 11°C
(52°F)		 11°C
(53°F)		 9°C
(49°F)		 7°C
(45°F)		 5°C
(41°F)		 1°C
(34°F)		 1°C
(34°F)		 1°C
(34°F)		 3°C
(37°F)		 6°C
(43°F)		 8°C
(46°F)		 9°C
(48°F)

Compare climate in Lewiston with other places

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

Monthly average precipitation in Lewiston, South Australia, Australia §

Lewiston usually has the most precipitation in June, July and August, with an average of 9 rainy days and 45 mm (1.8 inches) of precipitation per month.The driest months in Lewiston are January, March and December. On average, 13 mm (0.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Lewiston, South Australia, 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) 16 (0.6) 19 (0.7) 10 (0.4) 23 (0.9) 36 (1.4) 37 (1.4) 42 (1.6) 56 (2.2) 35 (1.4) 32 (1.3) 33 (1.3) 13 (0.5)
Average precipitation days (≥ 1 mm) 2 2 2 4 7 6 10 11 8 6 7 3

Monthly sunshine hours in Lewiston, South Australia, Australia §

The sunniest months in Lewiston are March, November and December, when the sun shines an average of 10 hours 43 minutes a day.Least sunny months in Lewiston: May, June and July receive an average of 7 hours 37 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Lewiston, South Australia, 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 294 301 312 261 238 223 240 250 279 304 317 357
Mean daily daylight hours 14h 9m 13h 19m 12h 15m 11h 11m 10h 17m 9h 51m 10h 4m 10h 51m 11h 52m 12h 57m 13h 54m 14h 24m

Solar UV radiation in Lewiston, South Australia, Australia §

Lewiston experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 14 - 15, which corresponds to the Extreme category of sun exposure.May, June and July are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Lewiston UV Index data.

Average daily maximum UV levels by month for Lewiston, South Australia, 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) 14 14 12 8 5 3 4 5 8 10 13 15