Cairns, Australia Weather
Cairns hourly forecast: next 24 hours
Today's high of 80°F (27°C) is about 3°F (2°C) above the typical August high of 77°F (25°C).
Current conditions in detail
Cairns weather tomorrow (Friday, August 28)
Tomorrow in Cairns looks patchy rain nearby, with a high of 77° and an overnight low of 60°. There is a 50% chance of rain - plan accordingly. Winds top out near 9 mph, and the UV index reaches 11 (extreme).
Cairns 14-day forecast
About the weather in Cairns
Cairns is genuinely wet: 73.8 inches (1875 mm) falls in an average year, across 160 days that carry about 11.7 mm each when they come. Temperatures are the calmer variable, running 76°F (24°C) to 87°F (31°C) between July and February.
Cairns weather: quick facts
- Hottest month: February - highs near 87°F (31°C)
- Coldest month: July - highs near 76°F (24°C)
- Decade extremes (2015-2024): 106°F (41°C) high · 50°F (10°C) low
- Wettest month: January (24 rainy days) · Sunniest: October (11.5 h sun/day)
- Climate type: tropical wet-and-dry
- Annual swing: 6°C between the average warmest and coolest month · day to night: 6°C
- Months averaging 30°C or hotter: 3
- Average humidity: 79%
Temperatures through the year
February is the warm end of the year, averaging 87°F (31°C) by day and 76°F (24°C) overnight. July sits at the other end of the year: 76°F (24°C) by day, 65°F (18°C) at night. Sunshine averages 10.3 hours a day over the year - sunnier than roughly 75% of the cities we track, peaking in October at 11.5 hours.
Rain, sun and snow
Average highs hold at or above 30°C for 3 months of the year, December through February being the unbroken run. Relative humidity averages 79% across the year, more humid than roughly 80% of the cities we track - enough that summer afternoons feel hotter than the thermometer says, which is what the dew point converter is for. Days and nights are about 6°C apart on average - narrower than all but 10% of the 3496 cities in our dataset. Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 106°F (41°C) and the lowest daily minimum 50°F (10°C).
Season by season
September through November
September through November is hot here - highs near 83°F (28°C), nights near 70°F (21°C), and expect showers on roughly 29 days across the season. Daylight is generous - around 11.4 hours of sun a day.
December through February
December through February brings hot afternoons here - highs near 87°F (30°C), nights near 76°F (24°C), and rain falls on around 60 of the 90 days. Daylight is generous - around 10.1 hours of sun a day.
March through May
Through March through May, Cairns runs hot: 82°F (28°C) by day, 73°F (23°C) after dark, and rain falls on around 47 of the 90 days.
June through August
June through August in Cairns brings comfortable warmth, with daytime highs averaging 76°F (25°C) and nights around 65°F (18°C); expect showers on roughly 24 days across the season.
Average temperatures in Cairns by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 87° | 76° | 24 | 16.4 in | 9.7 h/day | 84% |
| February | 87° | 76° | 19 | 11.0 in | 9.9 h/day | 83% |
| March | 85° | 75° | 20 | 13.1 in | 9.3 h/day | 83% |
| April | 83° | 73° | 16 | 7.3 in | 10.2 h/day | 80% |
| May | 79° | 70° | 12 | 3.3 in | 9.9 h/day | 79% |
| June | 77° | 66° | 10 | 1.8 in | 9.7 h/day | 78% |
| July | 76° | 65° | 8 | 2.3 in | 9.8 h/day | 77% |
| August | 77° | 64° | 7 | 1.4 in | 10.2 h/day | 75% |
| September | 80° | 67° | 8 | 1.6 in | 11.1 h/day | 75% |
| October | 83° | 70° | 9 | 1.9 in | 11.5 h/day | 76% |
| November | 86° | 73° | 12 | 2.3 in | 11.5 h/day | 76% |
| December | 86° | 75° | 17 | 11.4 in | 10.6 h/day | 80% |