| Average climate data for Kirribilli, Australia | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average maximum temperature (°C) | 27 | 26 | 25 | 23 | 20 | 17 | 16 | 18 | 21 | 22 | 24 | 26 | 27 |
| Average minimum temperature (°C) | 20 | 19 | 18 | 16 | 13 | 11 | 10 | 10 | 12 | 14 | 16 | 18 | 10 |
| Average precipitation (mm) | 63 | 93 | 73 | 54 | 44 | 60 | 36 | 36 | 35 | 49 | 59 | 43 | 646 |
| Average rainfall days (days) | 17 | 16 | 19 | 15 | 12 | 15 | 12 | 10 | 11 | 13 | 14 | 15 | 169 |
| Average relative humidity (%) | 75 | 75 | 74 | 73 | 71 | 74 | 69 | 65 | 67 | 70 | 71 | 71 | 71 |
| Average wind speed (km/h) | 14 | 14 | 13 | 12 | 13 | 13 | 13 | 14 | 14 | 14 | 13 | 14 | 13 |
| Average water temperature (°C) | 23 | 24 | 23 | 23 | 21 | 19 | 19 | 19 | 19 | 19 | 21 | 22 | 21 |
| Average daily daylight hours (h) | 14 | 13 | 12 | 11 | 10 | 9 | 10 | 10 | 11 | 12 | 13 | 14 | 12 |
| Average daily sunshine hours (h) | 8 | 7 | 7 | 8 | 7 | 5 | 8 | 8 | 8 | 8 | 9 | 9 | 8 |
| Average cloud coverage (%) | 40 | 43 | 39 | 33 | 27 | 34 | 26 | 24 | 26 | 33 | 37 | 38 | 33 |
| Average UV index | 6 | 6 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 5 | 6 | 6 | 5 |
The warmest month, with the highest average maximum temperature, is January (27.3 °C). The month with the lowest average maximum temperature is July (16.5 °C). Overall, the average maximum temperature over the whole year is 22.1 °C.
The month with the highest average minimum temperature is January (19.7 °C). The coldest month, with the lowest average minimum temperature, is August (9.7 °C). Overall, the average minimum temperature over the whole year is 14.8 °C.
The month with the highest average water temperature is February (23.8 °C). The month with the lowest average water temperature is September (18.6 °C). Overall, the average water temperature over the whole year is 21 °C.
The wettest month, with the highest amount of precipitation, is February (93 mm). The driest month, with the least amount of precipitation, is September (35.5 mm). Over the whole year there are 646.5 mm of rainfall on average.
The month with the most days of rain is March (18.9 days). The month with the fewest days of rain is August (10.1 days). Over the whole year there are 169.2 days of rain on average.
The month with the highest average relative humidity is January (74.8 %). The month with the lowest average relative humidity is August (65.3 %). The overall average relative humidity over the whole year is 71.2 %.
The windiest month, with the highest average wind speed, is August (14 km/h). The calmest month, with the lowest average wind speed, is April (12.3 km/h). The overall average wind speed over the whole year is 13.4 km/h.
The month with the cloudiest skies, so the highest cloud coverage, is February (42.9 %). The month with the clearest skies, so the lowest cloud coverage, is August (23.6 %). Over the whole year there is an average cloud coverage of 33.3 %.
The month with the longest days, so the most daylight, is December (Average daylight: 14 h). The month with the shortest days, so the least daylight, is June (Average daylight: 9.1 h). Over the whole year there are 11.6 h of daylight per day on average.
The month with the most sunshine per day is December (Average sunshine: 9.2 h). The month with the least sunshine per day is June (Average sunshine: 5 h). Over the whole year there are 7.7 h of sunlight per day on average.
The months with the highest average UV index are January, February, November and December (UV index: 6). The months with the lowest average UV index are May, June, July, August and September (UV index: 4). Over the whole year the average UV index is 4.9.
