Christmas Island Weather and Climate
Climate Snapshot
Christmas Island's warmest month in 2024 was February, averaging 27.8 degrees. That gives Christmas Island an annual average daytime high of 26.4 degrees, 1.1 degrees cooler than the Western Australia mean.
Daytime highs peak at 27.8 degrees in February and bottom out with overnight lows of 23.7 degrees in August. That is a 4.1 degree spread from hottest afternoon to coldest night. Overnight minimums average 24.9 degrees across the year, 7.2 degrees warmer than the Western Australia average of 17.7.
Annual rainfall totals 1,188mm across 141 rain days, 113 percent wetter than the Western Australia average. The wettest month is December at 359mm, and August is the driest at 18mm.
Expect the wet stuff mostly in summer. The cooler months tend to be drier and clearer.
When we crunch the numbers on temperature, humidity, UV, and rainfall, August comes out as the sweet spot with a Comfort Score of 9.2 out of 10. December sits at the other end at 5.6.
Keep scrolling for the detailed monthly data, or head straight to August for the peak-comfort window.
Monthly Comfort Score
Our Comfort Score rates each month from 1 (tough) to 10 (ideal) based on temperature, humidity, rainfall, UV, and sunshine. How we calculate it
Annual Comfort Score: 7.5/10 - Ranked #12 of 213 Australian cities (national avg 6.2, WA avg 6.0)
Seasonal Overview
| Season | Avg Max °C | Avg Min °C | Total Rain mm | Comfort |
|---|---|---|---|---|
| Summer | 27.0 | 25.3 | 581 | 6.6 |
| Autumn | 27.1 | 25.6 | 354 | 6.9 |
| Winter | 25.7 | 24.2 | 85 | 8.5 |
| Spring | 25.9 | 24.4 | 168 | 8.1 |
Monthly Climate Averages
| Month | Max °C | Min °C | Rain mm | Rain Days | Solar MJ | Humidity % | Comfort |
|---|
Weather by Month
Detailed climate data, packing advice, and what to expect for each month in Christmas Island.
26.9°C, 178mm rain February
27.8°C, 44mm rain March
27.0°C, 175mm rain April
27.4°C, 142mm rain May
27.0°C, 36mm rain June
26.6°C, 20mm rain July
25.5°C, 48mm rain August
24.9°C, 18mm rain September
25.2°C, 23mm rain October
25.9°C, 29mm rain November
26.6°C, 116mm rain December
26.4°C, 359mm rain
Compare and Explore
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