Karratha in Spring
In spring (September, October and November), Karratha sees average daytime highs around 29°C and overnight lows near 23°C, with 4 mm of rain over about 1 wet days across the season. It is the 3rd-warmest season and the driest season of the year.
Over the season highs climb from about 26°C in early September to 31°C by late November. The sky is clear or mostly clear about 92% of the time across spring, and the air most often feels humid.
Spring is Karratha's 2nd-best season to visit on our travel score. For the whole year in context, see Karratha's year-round climate.
- Avg daytime high
- 29°C
- 3rd-warmest season
- Avg overnight low
- 23°C
- Rainfall
- 4 mm
- 1 wet days
- Avg wind
- 20 km/h
- Travel score
- 7.9
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Karratha in Spring
Over the season highs climb from about 26°C in early September to 31°C by late November.
A typical spring day in Karratha reaches about 29°C and drops to 23°C overnight. The warmest of the three months is November, the coolest September.
How spring really feels in Karratha
Once humidity and wind are folded in, spring brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
spring sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Karratha weather by month
How the three spring months (September, October and November) 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 | 32° / 27° | 45 | 3.9 | 13.1 | 5.0 |
| Feb | 32° / 28° | 81 | 4.9 | 12.7 | 4.8 |
| Mar | 32° / 28° | 68 | 3.4 | 12.1 | 4.8 |
| Apr | 31° / 26° | 25 | 1.7 | 11.5 | 5.8 |
| May | 28° / 22° | 25 | 2.6 | 11 | 7.8 |
| Jun | 25° / 19° | 31 | 2.7 | 10.8 | 8.7 |
| Jul | 24° / 18° | 12 | 1.3 | 10.9 | 9.3 |
| Aug | 25° / 19° | 3 | 0.5 | 11.3 | 9.5 |
| Sep | 27° / 20° | 2 | 0.2 | 11.9 | 9.1 |
| Oct | 29° / 23° | 1 | 0.2 | 12.5 | 7.7 |
| Nov | 30° / 25° | 1 | 0.2 | 13 | 6.8 |
| Dec | 31° / 26° | 20 | 1.2 | 13.2 | 5.8 |
Cloud cover in Spring
The sky is clear or mostly clear about 92% of the time across spring.
Chance of precipitation in Spring
Karratha gets around 4 mm of rain over 1 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 20 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 36 min in early September to 13 h 12 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 7.5 kWh/m².
Hazard calendar for Karratha
In spring, Karratha overlaps its cyclone season. The full year is below, with each hazard's peak months called out.
Karratha sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Is spring a good time to visit Karratha?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is one of the better times to visit Karratha for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Karratha in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Karratha sees daytime highs around 29°C and nights near 23°C. Pack light clothes and sun protection. Worth having: a windbreaker.
Sea temperature near Karratha in Spring
The nearest coast averages about 25°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 13 km away) is warmest in March at about 30°C and coldest in August near 23°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 29 | 30 | 30 | 29 | 27 | 24 | 23 | 23 | 24 | 25 | 27 | 28 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Refreshing | Refreshing | Refreshing | Warm | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 30 | Tropical |
| Mar | 30 | Tropical |
| Apr | 29 | Tropical |
| May | 27 | Warm |
| Jun | 24 | Warm |
| Jul | 23 | Refreshing |
| Aug | 23 | Refreshing |
| Sep | 24 | Refreshing |
| Oct | 25 | Warm |
| Nov | 27 | Warm |
| Dec | 28 | Warm |
UV index in Karratha in Spring
Clear-sky midday UV across spring averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Karratha peaks around December 23 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 7 (high).
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) | 15 | 14 | 13 | 10 | 8 | 7 | 7 | 8 | 10 | 12 | 13 | 15 |
| Level | Extreme | Extreme | Extreme | Very high | Very high | High | Very high | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 14 | Extreme |
| Mar | 13 | Extreme |
| Apr | 10 | Very high |
| May | 8 | Very high |
| Jun | 7 | High |
| Jul | 7 | Very high |
| Aug | 8 | Very high |
| Sep | 10 | Extreme |
| Oct | 12 | Extreme |
| Nov | 13 | Extreme |
| Dec | 15 | Extreme |
Air quality in Karratha in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in Karratha is worst in December — around 49 µg/m³ PM2.5 (poor), about 7.0× the cleanest month (July, 7 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) | 43 | 31 | 23 | 11 | 9 | 8 | 7 | 7 | 11 | 20 | 32 | 49 |
| Level | Poor | Moderate | Moderate | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 43 | Poor |
| Feb | 31 | Moderate |
| Mar | 23 | Moderate |
| Apr | 11 | Good |
| May | 9 | Good |
| Jun | 8 | Good |
| Jul | 7 | Good |
| Aug | 7 | Good |
| Sep | 11 | Good |
| Oct | 20 | Moderate |
| Nov | 32 | Moderate |
| Dec | 49 | Poor |
Where is Karratha?
Karratha sits at 20.7°S, 116.8°E, 20 m above sea level, in Australia. The nearest listed city is Port Hedland, 190 km away.
Topography around Karratha
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Karratha.
Within 3 km, the terrain around Karratha has only modest variations in elevation — a maximum elevation change of 123 m around an average of 23 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 170 m; within 80 km, significant variations in elevation — a maximum elevation change of 377 m.
The land around Karratha is covered by grassland (54%) within 3 km, grassland (51%) and water (31%) within 16 km, and grassland (48%) and water (44%) 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 Karratha (-20.7376°, 116.8463°, elevation 20 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.