Whyalla weather by month & the best time to visit
Australia · beach resort · semi-arid climate
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The best time to visit Whyalla is January — its sunniest month (Sunshine Score 96/100), with March and October close behind. Whyalla averages about 3,268 hours of sunshine a year. Daytime highs around 32°C / 90°F and roughly 16 mm of rain in January.
When is the best time to visit Whyalla?
For sunshine, the best time to visit Whyalla is January, then March and October. The dullest month is July (62/100, 26 mm of rain). The full month-by-month picture is in the table below.
How sunny is Whyalla?
Whyalla is one of the sunniest places on Earth: about 3,268 hours of sunshine a year. January (96/100) is noticeably better than July (62). It ranks #47 of 118 destinations in Australia for annual sunshine, above the national median of 3,071 hours. The year's 264 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 96 | 32° / 90°F | 20° / 68°F | 16 mm | 12 | 24° / 75°F |
| February | 95 | 31° / 88°F | 20° / 68°F | 17 mm | 11 | 24° / 75°F |
| March | 96 | 28° / 82°F | 18° / 64°F | 16 mm | 9 | 24° / 75°F |
| April | 94 | 24° / 75°F | 15° / 59°F | 22 mm | 6 | 20° / 68°F |
| May | 94 | 20° / 68°F | 12° / 54°F | 27 mm | 3 | 17° / 63°F |
| June | 69 | 17° / 63°F | 9° / 48°F | 32 mm | 2 | 15° / 59°F |
| July | 62 | 16° / 61°F | 8° / 46°F | 26 mm | 2 | 13° / 55°F |
| August | 70 | 17° / 63°F | 8° / 46°F | 25 mm | 4 | 14° / 57°F |
| September | 93 | 21° / 70°F | 10° / 50°F | 29 mm | 6 | 16° / 61°F |
| October | 96 | 24° / 75°F | 13° / 55°F | 16 mm | 8 | 19° / 66°F |
| November | 95 | 27° / 81°F | 16° / 61°F | 18 mm | 10 | 22° / 72°F |
| December | 95 | 30° / 86°F | 18° / 64°F | 20 mm | 11 | 24° / 75°F |
Sea temperature in Whyalla by month
The sea off Whyalla is warmest in January at around 24°C / 75°F, and coolest in July at 13°C / 55°F. The water sits at a comfortable 21°C or warmer roughly 5 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
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Whyalla: questions and answers
What kind of destination is Whyalla?
Whyalla is a beach resort in Australia with a semi-arid climate — the sea reaches 24°C at its warmest and is swimmable (21°C+) about 5 months a year.
How many hours of sunshine does Whyalla get a year?
Whyalla gets about 3,268 hours of sunshine a year, at its best around January.
When is the best time to visit Whyalla?
The sunniest time to visit Whyalla is January, when the Sunshine Score peaks at 96/100 (with March and October close behind). Expect daytime highs around 32°C / 90°F.
What is the least sunny month in Whyalla?
July is the least sunny month in Whyalla, scoring 62/100 with about 26 mm of rain.
What is the sea temperature in Whyalla?
The sea in Whyalla ranges from about 13°C (July) to 24°C (January). Month-by-month sea temperatures are on this page.
How strong is the sun in Whyalla?
The typical midday UV index in Whyalla peaks around 12 (extreme) in January, easing to about 2 (low) in June. Month-by-month midday UV values are in the UV column of the table on this page.
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