Kiama Weather and Climate
Climate Snapshot
Kiama's warmest month in 2024 was December, averaging 25.5 degrees. That gives Kiama an annual average daytime high of 21.3 degrees, 1.0 degrees cooler than the New South Wales mean.
Daytime highs peak at 25.5 degrees in December and bottom out with overnight lows of 8.5 degrees in June. That is a 17.0 degree spread from hottest afternoon to coldest night. Overnight minimums average 13.2 degrees across the year, 0.7 degrees warmer than the New South Wales average of 12.5.
Annual rainfall totals 1,403mm across 147 rain days, 56 percent wetter than the New South Wales average. The wettest month is June at 251mm, and August is the driest at 22mm.
There is a pronounced wet-dry split here. June receives 251mm while August gets just 22mm, so the contrast between seasons is stark.
By our reckoning, March (9.3/10) is when the weather is at its finest, while June (1.6/10) is the toughest month to be outdoors.
Scroll down for the full month-by-month breakdown, or jump straight to March if you're picking the best time to visit Kiama.
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: 6.7/10 - Ranked #81 of 213 Australian cities (national avg 6.2, NSW avg 6.4)
Seasonal Overview
| Season | Avg Max °C | Avg Min °C | Total Rain mm | Comfort |
|---|---|---|---|---|
| Summer | 25.3 | 17.9 | 338 | 8.3 |
| Autumn | 21.2 | 13.3 | 464 | 6.2 |
| Winter | 16.7 | 9.0 | 319 | 3.9 |
| Spring | 21.8 | 12.6 | 282 | 8.3 |
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 Kiama.
25.2°C, 167mm rain February
25.3°C, 120mm rain March
24.4°C, 68mm rain April
21.2°C, 182mm rain May
17.9°C, 214mm rain June
15.5°C, 251mm rain July
15.4°C, 46mm rain August
19.1°C, 22mm rain September
21.1°C, 46mm rain October
20.8°C, 80mm rain November
23.6°C, 156mm rain December
25.5°C, 51mm rain
Compare and Explore
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