Mackay, Australia experiences average highs of 25°C (77°F) and lows of 22°C (72°F) throughout the year. Rainfall is moderate, averaging about 9 rainy days per month. Sunshine is abundant, averaging about 10 hours per day. Average highs have stayed broadly stable across the available records.
Mackay, Australia Weather & Climate 2026
Monthly climate averages for Mackay, Australia. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: May–Nov 
Wetter season: Jan–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
7.9/10
Best: May, June, July, August, September
UV Index
7
High
Temperature 25°C / 22°C
Feels Like 28°C / 24°C
Rainy Days 9
Rainfall 91 mm
Sunshine 10 h
Humidity 76%
Wind Speed 15 km/h
Dew Point 19°C
Hottest Month
29°C
February
Avg Low25°C
Rain16days
Coldest Month
17°C
July
Avg High22°C
Rain5days
Driest Month
3days
August
Avg High22°C
Avg Low17°C
Windiest Month
16 km/h
December (Gusts 41)
Sea Temperature
21°C – 29°C
Warmest water: January (
29.1°C
)
Worst Time to Visit
Consider avoiding January, February, March due to heavy rainfall, oppressive humidity.
Sun Position
Sunrise 06:39
Daylight 10.9h
Sunset 17:31
Live conditions—
Mackay on the map · live conditions
Mackay, Australia
- Continent
- Oceania
- Country
- Australia
- City
- Mackay
- Population
- 121.7K
- Coordinates
- -21.15°, 149.17°
Seasonal Breakdown
Spring
Sep–Nov
Avg High 26°C
Avg Low 22°C
Rain 6 days/mo
1/3 best months
Summer
Dec–Feb
Avg High 28°C
Avg Low 25°C
Rain 15 days/mo
Autumn
Mar–May
Avg High 26°C
Avg Low 22°C
Rain 12 days/mo
1/3 best months
Winter
Jun–Aug
Avg High 22°C
Avg Low 17°C
Rain 4 days/mo
3/3 best months
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 28°C / 25°C . Feb: 29°C / 25°C . Mar: 28°C / 25°C . Apr: 26°C / 23°C . May: 24°C / 20°C . Jun: 22°C / 17°C . Jul: 22°C / 17°C . Aug: 22°C / 17°C . Sep: 24°C / 20°C . Oct: 26°C / 22°C . Nov: 27°C / 24°C . Dec: 28°C / 25°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 261 mm. Feb: 172 mm. Mar: 184 mm. Apr: 87 mm. May: 51 mm. Jun: 27 mm. Jul: 57 mm. Aug: 19 mm. Sep: 13 mm. Oct: 40 mm. Nov: 54 mm. Dec: 129 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 78%. Feb: 79%. Mar: 79%. Apr: 77%. May: 76%. Jun: 75%. Jul: 75%. Aug: 74%. Sep: 74%. Oct: 75%. Nov: 72%. Dec: 75%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 16 km/h . Feb: 15 km/h . Mar: 15 km/h . Apr: 16 km/h . May: 14 km/h . Jun: 13 km/h . Jul: 13 km/h . Aug: 13 km/h . Sep: 15 km/h . Oct: 15 km/h . Nov: 15 km/h . Dec: 16 km/h .
Sunshine
Sunshine
Sunshine: Jan: 10h. Feb: 10h. Mar: 10h. Apr: 10h. May: 9h. Jun: 9h. Jul: 9h. Aug: 10h. Sep: 11h. Oct: 11h. Nov: 11h. Dec: 11h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 29°C . Feb: 29°C . Mar: 28°C . Apr: 27°C . May: 24°C . Jun: 22°C . Jul: 21°C . Aug: 21°C . Sep: 23°C . Oct: 26°C . Nov: 28°C . Dec: 28°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 9. Feb: UV 8. Mar: UV 8. Apr: UV 7. May: UV 5. Jun: UV 5. Jul: UV 5. Aug: UV 7. Sep: UV 8. Oct: UV 9. Nov: UV 9. Dec: UV 8.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending wetter by about 34 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jan 2025 · 29°C | Feb · 29°C |
| Coldest month | Jul 2025 · 17°C | Jul · 17°C |
| Wettest month | Feb 2025 · 396 mm | Jan · 261 mm |
| Windiest month | Feb 2025 · 18 km/h | Dec · 16 km/h |
Month-by-Month Weather Table
January
Wet 
February
Fair March
Wet April
Good May best
Excellent June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Excellent November
Good December
Fair | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 28°C / 25°C | 33°C / 29°C | 16days (261 mm) Wet | 10.3h Excellent | 78% Humid | 8.8 Very High | Wet | View Details |
| February | 29°C / 25°C | 34°C / 29°C | 16days (172 mm) Wet | 9.9h Good | 79% Humid | 7.6 Very High | Fair | View Details |
| March | 28°C / 25°C | 32°C / 28°C | 16days (184 mm) Wet | 9.5h Good | 79% Humid | 7.7 Very High | Wet | View Details |
| April | 26°C / 23°C | 29°C / 25°C | 11days (87 mm) Wet | 9.6h Good | 77% Humid | 6.9 High | Good | View Details |
| May best | 24°C / 20°C | 25°C / 21°C | 8days (51 mm) Wet | 9h Good | 76% Humid | 5.4 High | Excellent | View Details |
| June best | 22°C / 17°C | 23°C / 18°C | 5days (27 mm) Good | 8.9h Good | 75% Muggy | 5.1 High | Excellent | View Details |
| July best | 22°C / 17°C | 22°C / 17°C | 5days (57 mm) Good | 9.1h Good | 75% Muggy | 5.4 High | Excellent | View Details |
| August best | 22°C / 17°C | 23°C / 17°C | 3days (19 mm) Excellent | 9.9h Good | 74% Muggy | 6.5 High | Excellent | View Details |
| September best | 24°C / 20°C | 26°C / 21°C | 3days (13 mm) Excellent | 10.7h Excellent | 74% Muggy | 7.7 Very High | Excellent | View Details |
| October | 26°C / 22°C | 29°C / 24°C | 7days (40 mm) Good | 11.2h Excellent | 75% Muggy | 8.8 Very High | Excellent | View Details |
| November | 27°C / 24°C | 31°C / 26°C | 8days (54 mm) Wet | 11.4h Excellent | 72% Muggy | 9 Very High | Good | View Details |
| December | 28°C / 25°C | 33°C / 28°C | 12days (129 mm) Wet | 10.6h Excellent | 75% Muggy | 8.3 Very High | Fair | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Mackay are May, June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Mackay, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Mackay is February, with average daytime highs of 29°C (83°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Mackay is July, with average overnight lows of 17°C (62°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Mackay is January, averaging 261mm of precipitation across 16 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Mackay runs through January, February, March, December, with the heaviest rainfall in January. Based on 10-year averages for Mackay.
Mackay receives approximately 120 sunshine hours per year. The sunniest month is November with around 11 hours. Based on climate data for Mackay.
The least favorable months to visit Mackay are January, February, March, primarily due to heavy rainfall, oppressive humidity. For the best conditions, consider May, June, July, August, September instead.
The annual average UV index in Mackay is 7, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Mackay is 76%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes — sea temperatures in January, February, March, April, May, September, October, November, December average 27°C (81°F), which is warm and comfortable for swimming and water activities.
Average wind speeds in Mackay are 15 km/h (9 mph). The windiest month is December with peak winds reaching 16 km/h (10 mph) (gusts up to 41 km/h / 26 mph).
Mackay averages 6 clear-sky days per month with overall cloud cover around 45%. The clearest skies occur in August.
The annual average dew point in Mackay is 19°C (66°F), which feels noticeably humid. Summer months may feel slightly sticky, but conditions remain manageable for most people.
Mackay has a Tropical Monsoon climate, classified as Am under the Köppen system. Tropical climates are warm year-round with high rainfall and temperatures rarely dropping below 18°C (64°F).
The 'feels like' temperature in Mackay ranges from 24°C (75°F) to 28°C (82°F) on average. Humidity and radiant heat mean it often feels warmer than the thermometer reads, especially in summer months.
Yes, June is a great time to visit Mackay. It earns a climate score of 9.2/10 with Excellent.
For June in Mackay, pack Sunscreen (SPF 30+), Sunglasses, Comfortable walking shoes. With average highs of 22°C (72°F) and 5 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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