Coffs Harbour in Summer
In summer (December, January and February), Coffs Harbour sees average daytime highs around 26°C and overnight lows near 19°C, with 475 mm of rain over about 47 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 26°C. The sky is clear or mostly clear about 29% of the time across summer, and the air most often feels muggy.
Summer is Coffs Harbour's weakest season of the year to visit on our travel score. For the whole year in context, see Coffs Harbour's year-round climate.
- Avg daytime high
- 26°C
- warmest season of the year
- Avg overnight low
- 19°C
- Rainfall
- 475 mm
- 47 wet days
- Avg wind
- 10 km/h
- Travel score
- 5.8
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Coffs Harbour in Summer
Across summer, daytime highs hold fairly steady around 26°C.
A typical summer day in Coffs Harbour reaches about 26°C and drops to 19°C overnight. The warmest of the three months is January, the coolest December.
Coffs Harbour weather by month
How the three summer months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 26° / 19° | 160 | 15.4 | 13.7 | 5.9 |
| Feb | 26° / 19° | 165 | 15.7 | 13.1 | 5.6 |
| Mar | 24° / 18° | 163 | 17.8 | 12.2 | 5.9 |
| Apr | 22° / 15° | 78 | 12.3 | 11.3 | 6.5 |
| May | 20° / 12° | 74 | 9.1 | 10.5 | 6.7 |
| Jun | 18° / 10° | 81 | 7.5 | 10.1 | 6.4 |
| Jul | 17° / 9° | 36 | 5.7 | 10.2 | 6.7 |
| Aug | 19° / 9° | 45 | 5.2 | 10.9 | 7.3 |
| Sep | 21° / 11° | 43 | 6.8 | 11.8 | 7.4 |
| Oct | 22° / 14° | 88 | 10.6 | 12.7 | 6.8 |
| Nov | 24° / 16° | 131 | 14.1 | 13.5 | 6.3 |
| Dec | 25° / 18° | 150 | 15.9 | 13.9 | 5.9 |
Cloud cover in Summer
The sky is clear or mostly clear about 29% of the time across summer.
Chance of precipitation in Summer
Coffs Harbour gets around 475 mm of rain over 47 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 10 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 48 min in early December to 12 h 42 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.1 kWh/m².
Hazard calendar for Coffs Harbour
In summer, Coffs Harbour overlaps its cyclone and rainy season season. The full year is below, with each hazard's peak months called out.
Coffs Harbour sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Coffs Harbour's rainy season runs October–April, when most of the year's rain falls.
Is summer a good time to visit Coffs Harbour?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Coffs Harbour for sightseeing.
What to pack for Coffs Harbour in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Coffs Harbour sees daytime highs around 26°C and nights near 19°C. Pack rain gear and sun protection. Worth having: light clothes. About 47 days see rain.
Sea temperature near Coffs Harbour in Summer
The nearest coast averages about 25°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in February at about 26°C and coldest in August near 20°C.
It's comfortable for a long swim from Aug 27 to Aug 9 — about 11.4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 25 | 26 | 25 | 24 | 23 | 22 | 20 | 20 | 20 | 21 | 22 | 24 |
| Comfort | Warm | Warm | Warm | Warm | Refreshing | Refreshing | Refreshing | Cool | Refreshing | Refreshing | Refreshing | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 25 | Warm |
| Feb | 26 | Warm |
| Mar | 25 | Warm |
| Apr | 24 | Warm |
| May | 23 | Refreshing |
| Jun | 22 | Refreshing |
| Jul | 20 | Refreshing |
| Aug | 20 | Cool |
| Sep | 20 | Refreshing |
| Oct | 21 | Refreshing |
| Nov | 22 | Refreshing |
| Dec | 24 | Refreshing |
UV index in Coffs Harbour in Summer
Clear-sky midday UV across summer averages around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Coffs Harbour peaks around January 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 13 | 13 | 10 | 7 | 4 | 3 | 4 | 5 | 7 | 9 | 11 | 12 |
| Level | Extreme | Extreme | Extreme | High | Moderate | Moderate | Moderate | High | High | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 13 | Extreme |
| Mar | 10 | Extreme |
| Apr | 7 | High |
| May | 4 | Moderate |
| Jun | 3 | Moderate |
| Jul | 4 | Moderate |
| Aug | 5 | High |
| Sep | 7 | High |
| Oct | 9 | Very high |
| Nov | 11 | Extreme |
| Dec | 12 | Extreme |
Air quality in Coffs Harbour in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Coffs Harbour is worst in November — around 37 µg/m³ PM2.5 (poor), about 8.5× the cleanest month (April, 4 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 8 | 7 | 7 | 4 | 5 | 5 | 6 | 18 | 17 | 15 | 37 | 16 |
| Level | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Poor | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 7 | Good |
| Mar | 7 | Good |
| Apr | 4 | Good |
| May | 5 | Good |
| Jun | 5 | Good |
| Jul | 6 | Good |
| Aug | 18 | Moderate |
| Sep | 17 | Moderate |
| Oct | 15 | Moderate |
| Nov | 37 | Poor |
| Dec | 16 | Moderate |
Where is Coffs Harbour?
Coffs Harbour sits at 30.3°S, 153.1°E, 6 m above sea level, in Australia. The nearest listed city is Grafton, 71 km away.
Topography around Coffs Harbour
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Coffs Harbour.
Within 3 km, the terrain around Coffs Harbour has significant variations in elevation — a maximum elevation change of 255 m around an average of 24 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 713 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,555 m.
The land around Coffs Harbour is covered by trees (36%), artificial surfaces (29%) and grassland (23%) within 3 km, water (44%) and trees (42%) within 16 km, and trees (55%) and water (31%) within 80 km.
Australia travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type I
- 230 V · 50 Hz
- Prices
- ≈ 90% of US
- price level, 2025
- GDP per capita
- $65,130
- 2025
- Happiness
- 6.9 / 10
- World Happiness, 2025
- Homicide rate
- 0.9
- per 100k, 2023
- Road deaths
- 4.9
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Coffs Harbour (-30.2963°, 153.1135°, elevation 6 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.