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Wollongong, New South Wales climate
Cfa Humid subtropical
Wollongong has a mildly seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is January with an average daily high near 77°F, while the coldest is July averaging around 50°F at night. Around 44 inches of precipitation falls each year, peaking in February (5.4 inches) and easing off in September (2.2 inches).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsWollongong climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 77 | 77 | 75 | 72 | 68 | 64 | 63 | 64 | 68 | 71 | 72 | 75 |
| Avg temp (°F) | 72 | 72 | 70 | 66 | 62 | 58 | 56 | 58 | 61 | 64 | 66 | 69 |
| Avg low (°F) | 66 | 67 | 65 | 60 | 56 | 52 | 50 | 51 | 54 | 57 | 60 | 64 |
| Precipitation (in) | 3.2 | 5.4 | 5.2 | 4.2 | 2.5 | 4.8 | 3.0 | 3.7 | 2.2 | 3.1 | 3.7 | 3.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 77 | 77 | 75 | 72 | 68 | 64 |
| Avg temp (°F) | 72 | 72 | 70 | 66 | 62 | 58 |
| Avg low (°F) | 66 | 67 | 65 | 60 | 56 | 52 |
| Precipitation (in) | 3.2 | 5.4 | 5.2 | 4.2 | 2.5 | 4.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 63 | 64 | 68 | 71 | 72 | 75 |
| Avg temp (°F) | 56 | 58 | 61 | 64 | 66 | 69 |
| Avg low (°F) | 50 | 51 | 54 | 57 | 60 | 64 |
| Precipitation (in) | 3.0 | 3.7 | 2.2 | 3.1 | 3.7 | 3.0 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 11 | 12 | 13 | 11 | 8 | 10 | 9 | 8 | 9 | 11 | 12 | 12 |
| Days with high ≥ 90°F (days) | 0.9 | 0.5 | 0.4 | 0.1 | — | — | — | — | 0.2 | 1 | 1 | 1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 11 | 12 | 13 | 11 | 8 | 10 |
| Days with high ≥ 90°F (days) | 0.9 | 0.5 | 0.4 | 0.1 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 9 | 8 | 9 | 11 | 12 | 12 |
| Days with high ≥ 90°F (days) | — | — | 0.2 | 1 | 1 | 1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 67 | 63 | 57 | 53 | 56 | 50 | 49 | 52 | 61 | 67 | 65 |
| Clear days (≤ 30% cloud) | 5 | 4 | 5 | 6 | 8 | 7 | 9 | 10 | 8 | 6 | 4 | 5 |
| Partly cloudy days (30–70%) | 11 | 9 | 11 | 13 | 13 | 12 | 14 | 13 | 13 | 12 | 10 | 11 |
| Cloudy days (≥ 70%) | 15 | 15 | 15 | 11 | 10 | 11 | 8 | 8 | 10 | 13 | 16 | 15 |
| Relative humidity (%) | 68 | 74 | 76 | 75 | 77 | 82 | 79 | 74 | 70 | 68 | 68 | 67 |
| Wind speed (mph) | 1.1 | 1.1 | 1.1 | 1.2 | 1.3 | 1.3 | 1.3 | 1.3 | 1.2 | 1.1 | 1.1 | 1.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 67 | 63 | 57 | 53 | 56 |
| Clear days (≤ 30% cloud) | 5 | 4 | 5 | 6 | 8 | 7 |
| Partly cloudy days (30–70%) | 11 | 9 | 11 | 13 | 13 | 12 |
| Cloudy days (≥ 70%) | 15 | 15 | 15 | 11 | 10 | 11 |
| Relative humidity (%) | 68 | 74 | 76 | 75 | 77 | 82 |
| Wind speed (mph) | 1.1 | 1.1 | 1.1 | 1.2 | 1.3 | 1.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 50 | 49 | 52 | 61 | 67 | 65 |
| Clear days (≤ 30% cloud) | 9 | 10 | 8 | 6 | 4 | 5 |
| Partly cloudy days (30–70%) | 14 | 13 | 13 | 12 | 10 | 11 |
| Cloudy days (≥ 70%) | 8 | 8 | 10 | 13 | 16 | 15 |
| Relative humidity (%) | 79 | 74 | 70 | 68 | 68 | 67 |
| Wind speed (mph) | 1.3 | 1.3 | 1.2 | 1.1 | 1.1 | 1.1 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 23 years of daily observations at Bellambi Aws, a weather station, about 7 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.