Cairns weather in January
January in Cairns: sweltering, soaked, with clean air — a good time to visit.
#12 of 12 months in Cairns · #320 of 604 destinations to visit in January · comfort 67/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Cairns climate normals — January
| Daytime high | 29°C / 85°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 25°C / 77°F | |
| Feels like (high) | 35°C / 95°F | |
| Rainfall | 460 mm / 18.1 in | ⛈ soaked |
| Rainy days | 25 days | |
| Humidity | 86% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 9 h/day | |
| Daylight | 13 h | |
| Wind | 15 km/h / 9 mph | |
| Air quality (US AQI) | 17 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Cairns?
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Cairns in January — FAQ
- Is January a good time to visit Cairns?
- January in Cairns: sweltering, soaked, with clean air — a good time to visit. It ranks #12 of 12 months for Cairns on SeasonMap's comfort score (67/100).
- What is the weather like in Cairns in January?
- In January, Cairns averages a daily high of 29.2°C and a low of 24.8°C, with about 460.1 mm of rain over roughly 24.6 rainy days.
- What is the air quality in Cairns in January?
- Cairns has a mean US Air Quality Index of about 17 in January.