Best time to visit Exmouth

The best time to visit Exmouth and the North West Cape region is from May to September when the days are warm, sunny and good for a range of outdoor activities.

Exmouth weather

Exmouth and the North West Cape region of Western Australia experience a hot desert climate with sunny, clear blue skies, and little to no rainfall year-round.

Winter is mild and pleasant with daytime high temperatures around 25°C (77°F). Summer, from December to February, is hot and humid with temperatures rising to 37°C (98°F).

What is the best month to visit Exmouth?
May through September are the best months to visit Exmouth – the weather is pleasantly warm and sunny, with clear blue skies and little to no rain.

Which is the hottest month in Exmouth?
The hottest month in Exmouth is usually January, with an average high temperature of 38°C (100°F) with very high heat and humidity, and a low of 23°C (73°F)

However, on the hottest days of the month, the temperature may climb above 40°C (104°F).

The hot season lasts from late-November through March, with an average daily high temperature above 34°C (93°F).

Which is the coldest month in Exmouth?
The coldest month in Exmouth is July, with an average high temperature of 24°C (75°F), falling to 11°C (51°F) at night.

The cool season lasts from late-May to mid-August, with an average daily high temperature below 26°C (78°F).

Which is the sunniest month in Exmouth?
The sunniest month in Exmouth is October with more than 12 hours of bright sunshine daily – that's around 94% of daylight hours.

October through December is the sunniest time of year.

What is the humidity in Exmouth?
Exmouth experiences notable seasonal variation in humidity, with approximate average relative humidity calculated at between 51% – 65% over the course of the year.

What do the humidity conditions feel like in Exmouth?
We derive the humidity comfort level – what conditions feel like – from the dew point temperature, which measures moisture content in the atmosphere: a higher dew point feels more humid, while a lower dew point feels drier.

Meteorologists agree that dew point temperature is a more consistant indication of 'absolute humidity' than relative humidity, which fluctuates with temperature.

The average annual dew point in Exmouth is 14°C (57°F), and varies over the course of the year from comfortable at 9°C (48°F) to starting to feel humid at 20°C (68°F). 

The more humid time of year in Exmouth is from early-December to early-May, when you can expect the comfort level to be muggy at least 18% of the time.

The month with the most muggy days in Exmouth is February, with around 19 days that are muggy or worse.

May through November is generally comfortable, with little or no humidity.

When is the sea warmest in Exmouth?
The sea is usually at its warmest in Exmouth in March and April when the water temperature reaches 28°C (82°F), which is very pleasant for swimming and diving.

The time of year with warmer water lasts from late-January to early-May, with an average temperature above 27°C (80°F).

The month of the year in Exmouth with the coolest water is September, with an average temperature of 23°C (73°F), which is still warm enough for swimming.

The time of year with cooler water lasts from mid-July to early-November, with an average temperature below 24°C (75°F).

Which month has the most rain in Exmouth?
June usually has the most rain with an average of 46mm (2in), with around three days in June with some rainfall.

There is no specific wet and dry season in Exmouth: From mid-January to mid-July, there's a greater than 8% chance of a given day being a wet day, and usually with some monsoonal showers from January to April.

The drier season lasts from mid-July to mid-January. August to December is usually dry.

What are the windiest months in Exmouth?
Mid-September through to January are the windiest months in Exmouth, with November the windiest month of the year, with an average hourly wind speed of 25 kilometres per hour (15.5 mph; 13.5 knots).

February to early-September experiences less wind. The calmest month of the year in Exmouth is June, with an average hourly wind speed of 15 kilometres per hour (9 mph; 8 knots).

The predominant average hourly wind direction around Exmouth is from the south throughout the year.

Is there a risk of a tropical storm in Exmouth?
The risk of a tropical storm in Exmouth is greatest between December and March, with the greatest possibility of a cyclone in February.

Exmouth Weather Averages

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average high temperature (°C)
38 37 37 33 29 25 24 25 29 33 35 37
Average low temperature (°C)
23 24 23 20 16 13 11 12 13 16 18 21
Average daily sunshine (hrs)
11 10 10 9 8 8 9 10 11 12 12 12
Average daily daylight (hrs)
13 13 12 12 11 11 11 11 12 13 13 13
Comfort level – heat
Extreme high heat & humidity icon Extreme high heat & humidity icon Extreme high heat & humidity icon Very high heat & humidity icon Moderately hot icon Low heat & humidity icon Low heat & humidity icon Low heat & humidity icon Moderately hot icon Very high heat & humidity icon Very high heat & humidity icon Extreme high heat & humidity icon
Comfort level – humidity (#muggy days)
16 19 17 9 5 2 1 0 0 1 3 8
Average dew point temperature (°C)
18 20 18 16 13 11 10 9 10 11 14 16
Average relative humidity (%)
55 59 57 56 59 65 63 56 53 51 52 53
UV Index (max)
11+ 11+ 11+ 9 7 6 6 8 10 11+ 11+ 11+
Average days of rainfall (≥1mm)
3 3 3 2 3 6 4 2 1 0 1 1
Average monthly rainfall (mm)
18 40 43 20 38 46 20 7 2 0 2 9
Average wind speed (km/h)
24 21 18 16 16 15 17 18 20 23 24 24
Average sea temperature (°C)
27 28 28 28 26 25 23 23 23 23 24 25
Exmouth, WA

Holiday seasons

High season: April to October; Low season: November to March.

Exmouth weather by month

Source: Meteorological data for Exmouth is based on weather statistics gathered for the 30-year period 1992 to 2021 by the Bureau of Meteorology (BoM) from the closest weather station: RAAF Base Learmonth, also known as Learmonth Airport, located 36km (22mi) south of Exmouth. This station is deemed sufficiently nearby to be relied upon as the primary source for historical climate records, although weather conditions in Exmouth may vary slightly.

Advice on the best time to visit a particular destination is based on average local weather statistics, when the weather conditions are generally better than at other times of the year. We consider high and low temperatures, risk of rain (and thunderstorms, etc.), amount of sunshine and sea temperature. For general outdoor activities we favour clear, rainless days with a temperature range between 18°C (64°F) and 27°C (80°F); and for hot-weather activities we favour clear, rainless days with a temperature range between 24°C (75°F) and 32°C (89°F). Often, the best times to visit correspond to high season and therefore involve higher prices.

Latest update: Best time to visit Exmouth, WA: 15 May, 2024

Disclaimer: The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data and conditions at any given location and time are unpredictable and variable. We assume no responsibility and can not be held legally responsible for any decisions made on the basis of the information presented on this site.