Karratha weather by month & the best time to visit
🇦🇺 Australia · beach resort · hot desert climate
The best time to visit Karratha is August — its sunniest month (Sunshine Score 100/100), with September and October close behind. Karratha averages about 3,645 hours of sunshine a year. Daytime highs around 25°C / 77°F and roughly 1 mm of rain in August.
Jump to: month-by-month table · sea temperature · nearby alternatives · embed this data
- Sun hours / year
- 3,645
- Sunniest month
- August
- Peak score
- 100/100
- Rain / year
- 335 mm
- Midday UV at peak
- 14 (extreme)
- Sea at warmest
- 31°C / 88°F
- Population
- 17k
- Elevation
- 7 m
When is the best time to visit Karratha?
For sunshine, the best time to visit Karratha is August, then September and October. The dullest month is February (84/100, 86 mm of rain). The full month-by-month picture is in the table below.
How sunny is Karratha?
Karratha is one of the sunniest places on Earth: about 3,645 hours of sunshine a year. August (100/100) is noticeably better than February (84). It ranks #23 of 118 destinations in Australia for annual sunshine, above the national median of 3,071 hours. Rain is strongly seasonal here: roughly 68% of the year's 335 mm falls in the three months around February.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 85 | 31° / 88°F | 27° / 81°F | 82 mm | 14 | 29° / 84°F |
| February | 84 | 31° / 88°F | 28° / 82°F | 86 mm | 14 | 31° / 88°F |
| March | 89 | 32° / 90°F | 28° / 82°F | 61 mm | 12 | 30° / 86°F |
| April | 97 | 31° / 88°F | 27° / 81°F | 17 mm | 10 | 28° / 82°F |
| May | 95 | 28° / 82°F | 23° / 73°F | 25 mm | 7 | 25° / 77°F |
| June | 94 | 25° / 77°F | 20° / 68°F | 32 mm | 6 | 23° / 73°F |
| July | 98 | 24° / 75°F | 19° / 66°F | 10 mm | 6 | 21° / 70°F |
| August | 100 | 25° / 77°F | 19° / 66°F | 1 mm | 8 | 23° / 73°F |
| September | 100 | 27° / 81°F | 21° / 70°F | 2 mm | 10 | 26° / 79°F |
| October | 100 | 29° / 84°F | 23° / 73°F | 1 mm | 12 | 27° / 81°F |
| November | 99 | 30° / 86°F | 25° / 77°F | 3 mm | 13 | 29° / 84°F |
| December | 97 | 31° / 88°F | 26° / 79°F | 15 mm | 14 | 31° / 88°F |
Sea temperature in Karratha by month
The sea off Karratha is warmest in February at around 31°C / 88°F, and coolest in July at 21°C / 70°F. The water sits at a comfortable 21°C or warmer roughly all year round. Month-by-month sea-surface temperatures are in the Sea column of the table above.
See Karratha on the interactive sunshine globe →
Nearby places for sunshine
- Port Hedland Australia · 197 km · best in Aug · 3,669 h sun/yr
- Newman Australia · 434 km · best in Aug · 3,765 h sun/yr
- Broome Australia · 650 km · best in Aug · 3,549 h sun/yr
- Kalgoorlie Australia · 1,215 km · best in Apr · 3,498 h sun/yr
- Perth Australia · 1,251 km · best in Mar · 3,335 h sun/yr
- Mataram (Pujut, Lombok Tengah) Indonesia · 1,330 km · best in Aug · 2,768 h sun/yr
Nearest destinations
- Paraburdoo Australia · 291 km · 3,808 h sun/yr · best in Sep
- Exmouth Australia · 325 km · 3,807 h sun/yr · best in Sep
- Christmas Creek Mine Australia · 348 km · 3,786 h sun/yr · best in Aug
- Carnarvon Australia · 563 km · 3,773 h sun/yr · best in Sep
Head-to-head
How Karratha compares month by month: Karratha vs Perth · Karratha vs Port Hedland · Karratha vs Broome · Karratha vs Newman · all comparisons
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