Dee Why Weather in December
Dee Why in December
The short of it: Dee Why in December averages a high of 25 °C (77 °F) and a low of 17 °C (63 °F), with 90 mm (3.5 in) of rain and about 14 h 23 min of daylight. Rated 3 of 5 for a visit; the best months are April and November. Source: TerraClimate climate normals, 1991–2020.
Average high 25° · low 17° · rain 90 mm · daylight 14 h 23 min
✦✦✦ Fair for a visit · best months: April & November
Thirty years of records give Dee Why an average December high of 25°, a low of 17° and some 90 mm of rain. Much like November: highs about 25°, nights near 17°. Easy travelling weather. Wet spells are common — about 90 mm, the 8th wettest month.
The sun is up for about 14 h 23 min in mid-December, 27 minutes more than a month before.
For the traveller: pack light clothes and a jacket for the evening, and an oilskin besides. The Almanac rates December 3 of 5 for a visit; the finest months here are April and November.
Against its neighbours, Dee Why runs about middling and wetter than most in December. Manly, 5 km to the S, is 1° cooler by day.
December in Dee Why, by the numbers
- Warmth rank
- 3rd warmest of 12
- Rain rank
- 8th wettest of 12
- Versus November
- 2° warmer, 3.0 mm less rain
- Versus January
- 1° colder
- Day–night spread
- 8°
- Snow season
- seldom any
- Daylight, mid-month
- 14 h 23 min
- Average wind
- 14 km/h
Neighbouring Towns
December averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| ManlyNew South Wales | 5 km S | 24° | 18° | 88 mm |
| PittwaterNew South Wales | 10 km N | 24° | 17° | 90 mm |
| MosmanNew South Wales | 11 km SSW | 25° | 17° | 84 mm |
| ChatswoodNew South Wales | 11 km WSW | 26° | 17° | 89 mm |
| Saint IvesNew South Wales | 12 km W | 26° | 16° | 96 mm |
| Sydney Central Business DistrictNew South Wales | 15 km SSW | 26° | 18° | 81 mm |
| SydneyNew South Wales | 15 km SSW | 26° | 18° | 81 mm |
| Surry HillsNew South Wales | 16 km SSW | 26° | 18° | 85 mm |