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Weather in Dee Why

New South Wales · 21,145 inhabitants · Thursday, October 29 · updated 16:11

Air: Good

20°

Clear sky

Feels like 22°C

Wind

16 km/h

Gusts

16 km/h

Humidity

51 %

Pressure

1022 hPa

Clouds

0 %

Storm

Rise 05:57 Set 19:19 Day 13 h 21 min UV 11 · Very high

Detailed forecast

Trend

Afternoon

Clear sky

20°

Feels like 22°

Wind ↑ ESE 20 km/h

Humidity 51 %

Evening

Clear sky

17°16°

Feels like 17°

Wind ↑ SE 10 km/h

Gusts 16 km/h

Humidity 75 %

17:00

20°

ESE 20

20:00

16°

SE 10

23:00

17°

ESE 4

02:00

15°

NE 1

05:00

16°

W 3

08:00

17°

NW 5

Weather charts for Dee Why · 7 days

Temperatures over 7 days

≈ Temperatures close to seasonal normals

Highs Lows Seasonal normal (1991-2020 average)

Hourly detail

Temperature (°C) Precipitation (mm) Wind (km/h)

Climate of Dee Why

February is the warmest month, with average highs of 26 °C. July is the coldest, with average lows of 10 °C.

Rain is spread through the year: every month gets between 53 mm and 110 mm on average.

Daylight lasts 9 h 54 min at the June solstice and 14 h 24 min at the December solstice.

Average highs reach 25 °C only in January and February, up to 26 °C in February.

This week’s forecast highs average 23 °C, 1 °C above the October normal (22 °C).

Monthly averages, 1991–2020
Month	Avg high	Avg low	Rain
Jan	26 °C	20 °C	86 mm
Feb	26 °C	20 °C	110 mm
Mar	25 °C	18 °C	95 mm
Apr	22 °C	15 °C	83 mm
May	19 °C	12 °C	75 mm
Jun	17 °C	11 °C	91 mm
Jul	17 °C	10 °C	53 mm
Aug	18 °C	10 °C	53 mm
Sep	20 °C	12 °C	55 mm
Oct	22 °C	15 °C	68 mm
Nov	23 °C	16 °C	88 mm
Dec	25 °C	18 °C	75 mm
Year	21 °C	15 °C	930 mm

Climate normals: ERA5 reanalysis 1991–2020 (Copernicus/ECMWF), computed by SkiesAtlas for 33.75° S, 151.29° E. ERA5 averages over a 0.25° grid (about 25 km): hills, a coastline or the heat of the city itself can shift local values by a degree or two.

Air quality & pollen in Dee Why

1/6

Good

European Air Quality Index (EAQI) · CAMS source

PM2.53µg/m³

PM103µg/m³

CAMS data (Copernicus) · air quality and pollen refreshed several times a day.

Rain in Dee Why: live radar and next-hour forecast

Will it rain in Dee Why? Track precipitation live on the radar and anticipate showers in the next hour — the +1 h extrapolation is based on the real movement of rain cells.

Full-screen radar · rain within the hour

Rain radar Observed, then extrapolation up to +1h (real cell movement) · drag the timeline

Moon calendar for Dee Why

Waning gibbous

87 % illuminated · 18.3 days

Rise 13:55 Set 23:49

Fri 30/10 79%

Sat 31/10 69%

Sun 1/11 59%

Mon 2/11 49% Last quarter

Tue 3/11 38%

Wed 4/11 28%

Thu 5/11 19%

Fri 6/11 12%

Sat 7/11 6%

Sun 8/11 2%

Mon 9/11 0%

Tue 10/11 1% New moon

Rise and set in local time (Australia/Sydney) · phases and illumination computed by SkiesAtlas (synodic model).

Weather history for Dee Why

What was the weather in Dee Why on a past date? Pick a day — ERA5 reanalysis data (ECMWF / Copernicus C3S), available up to one week ago.

The weather in Dee Why

Find the full weather for Dee Why, New South Wales: current conditions, forecast by time of day (morning, afternoon, evening) and a 7-day trend. Right now the sky is “clear sky” with 20 °C (feels like 22 °C) and wind at 16 km/h.

Today, temperatures range from 15 °C to 20 °C, with no significant precipitation. Forecast computed by our multi-model engine SkiesAtlas (ECMWF-AIFS, NOAA GFS, DWD ICON): cloud cover calibrated on METAR observations, convective energy (CAPE) for storms.

Nearby cities

Sydney 15 km 19°

Central Coast 37 km 20°

Pittwater 10 km 19°

Blacktown 34 km 21°

Castle Hill 27 km 21°

Auburn 26 km 21°

Baulkham Hills 27 km 21°

Weather API for Dee Why

Get the Dee Why forecast in JSON for your website or app, plus air quality, tides and astronomy. Free API key, no credit card required.

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How is this forecast computed? Multi-model engine, verified daily against 1125 weather stations