Chatswood weather in August

In August, Chatswood sees average daytime highs of 17°C and overnight lows near 11°C, with 53 mm of rain across 6.6 wet days and about 10.7 hours of daylight. It is the 10th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 17°C through the month. The sky is clear or mostly clear about 63% of the time in August, and the air most often feels dry.

Daylight stretches from about 10 h 18 min at the start of August to 11 h 12 min by month's end. Set against the rest of the year, August is Chatswood's 1st-clearest and 1st-windiest month. For the whole year in context, see Chatswood's year-round climate.

Daytime high: 17°; 10th warmest
Overnight low: 11°; 2nd coldest
Rainfall: 53 mm; 6.6 wet days
Daylight: 10 h 42 min; 7:37 AM – 6:21 PM
Cloud cover: 33%; 1st clearest
Wind: 18 km/h; 1st windiest
Solar energy: 3.75 kWh/m²
Travel score: 6.4; out of 10

Chatswood is suburb of Sydney, New South Wales, Australia.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← July Chatswood year-round climate September →Best places to visit in August

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 17°C through the month.

A typical August day in Chatswood reaches about 17°C in the afternoon and slips back to 11°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 20°C. Set against its neighbours, August runs about 1°C warmer than July and about 2°C cooler than September.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	18	18	18	18	18	18
Avg low (°C)	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	12	12	12	12	12	12	12	12	12	12	12

	Avg high (°C)	Avg low (°C)
1	17	11
2	17	11
3	17	11
4	17	11
5	17	11
6	17	11
7	17	11
8	17	11
9	17	11
10	17	11
11	17	11
12	17	11
13	17	11
14	17	11
15	17	11
16	17	11
17	17	11
18	17	11
19	17	11
20	17	11
21	17	12
22	17	12
23	17	12
24	17	12
25	17	12
26	18	12
27	18	12
28	18	12
29	18	12
30	18	12
31	18	12

Chatswood weather by month

How August compares with the rest of the year at a glance. August is the 10th-warmest and 11th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	24° / 20°	72	9.3	14	7.2
Feb	24° / 20°	93	10.3	13.3	6.9
Mar	23° / 19°	82	11.6	12.3	6.8
Apr	21° / 17°	77	10.5	11.2	6.7
May	19° / 14°	79	9.7	10.3	6.4
Jun	17° / 12°	97	10.3	9.8	5.6
Jul	16° / 11°	56	7.7	10	5.8
Aug	17° / 11°	53	6.6	10.7	6.4
Sep	19° / 13°	50	6.7	11.8	6.9
Oct	20° / 15°	59	8	12.9	6.8
Nov	21° / 17°	72	9.1	13.8	6.8
Dec	23° / 19°	60	8.6	14.2	7.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 63% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of August, with mostly cloudy or overcast conditions the remaining 22%. Skies tend to cloud over as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	80	80	81	80	81	81	81	81	81	81	81	80	80	80	80	79	79	79	78	78	78	77	77	76	75	75	75	75	75	74	74
Cloudier (%)	20	20	19	20	19	19	19	19	19	19	19	20	20	20	20	21	21	21	22	22	22	23	23	24	25	25	25	25	25	26	26

	Clearer (%)	Cloudier (%)
1	80	20
2	80	20
3	81	19
4	80	20
5	81	19
6	81	19
7	81	19
8	81	19
9	81	19
10	81	19
11	81	19
12	80	20
13	80	20
14	80	20
15	80	20
16	79	21
17	79	21
18	79	21
19	78	22
20	78	22
21	78	22
22	77	23
23	77	23
24	76	24
25	75	25
26	75	25
27	75	25
28	75	25
29	75	25
30	74	26
31	74	26

Chance of precipitation in August

Any precipitation

Chatswood gets around 53 mm of rain over 6.6 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 22% and peaks near 26% on the wettest days. The odds climb toward the end of the month.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	21	20	20	19	19	19	19	19	19	19	19	20	20	20	20	20	21	21	22	22	23	23	24	24	25	25	25	26	26	26	26

	Rain chance (%)
1	21
2	20
3	20
4	19
5	19
6	19
7	19
8	19
9	19
10	19
11	19
12	20
13	20
14	20
15	20
16	20
17	21
18	21
19	22
20	22
21	23
22	23
23	24
24	24
25	25
26	25
27	25
28	26
29	26
30	26
31	26

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the dry band about 97% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	98	98	98	99	99	99	99	99	99	99	99	99	99	99	99	98	98	98	98	97	97	96	96	95	94	93	93	92	92	91	91
Comfortable (%)	2	2	2	1	1	1	1	1	1	1	1	1	1	1	1	2	2	2	2	3	3	4	4	5	6	7	7	8	8	9	9

	Dry (%)	Comfortable (%)
1	98	2
2	98	2
3	98	2
4	99	1
5	99	1
6	99	1
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	98	2
17	98	2
18	98	2
19	98	2
20	97	3
21	97	3
22	96	4
23	96	4
24	95	5
25	94	6
26	93	7
27	93	7
28	92	8
29	92	8
30	91	9
31	91	9

Wind in August

Winds average 18 km/h in August, the windiest month of the year.

Across August, daily wind ranges from about 18 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	18	18	18	19	19	19	19	19	19	19	19	19	19	19	19	19	19	18	18	18	18	18	18	18	18	18	18	18	18	18	18
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (km/h)	Feels
1	18	light breeze
2	18	light breeze
3	18	light breeze
4	19	light breeze
5	19	light breeze
6	19	light breeze
7	19	light breeze
8	19	light breeze
9	19	light breeze
10	19	light breeze
11	19	light breeze
12	19	light breeze
13	19	light breeze
14	19	light breeze
15	19	light breeze
16	19	light breeze
17	19	light breeze
18	18	light breeze
19	18	light breeze
20	18	light breeze
21	18	light breeze
22	18	light breeze
23	18	light breeze
24	18	light breeze
25	18	light breeze
26	18	light breeze
27	18	light breeze
28	18	light breeze
29	18	light breeze
30	18	light breeze
31	18	light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 10 h 18 min at the start of August to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over August. Sunrise moves from 7:52 AM to 7:18 AM, and sunset from 6:10 PM to 6:32 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	10.3	10.3	10.4	10.4	10.4	10.4	10.5	10.5	10.5	10.6	10.6	10.6	10.6	10.7	10.7	10.7	10.8	10.8	10.8	10.9	10.9	10.9	11.0	11.0	11.0	11.1	11.1	11.1	11.2	11.2	11.2
Sunrise (AM)	7:52	7:51	7:51	7:50	7:49	7:48	7:47	7:46	7:45	7:44	7:43	7:42	7:41	7:40	7:39	7:37	7:36	7:35	7:34	7:33	7:31	7:30	7:29	7:28	7:26	7:25	7:24	7:22	7:21	7:20	7:18
Sunset (PM)	6:10	6:11	6:12	6:13	6:13	6:14	6:15	6:15	6:16	6:17	6:18	6:18	6:19	6:20	6:21	6:21	6:22	6:23	6:24	6:24	6:25	6:26	6:26	6:27	6:28	6:29	6:29	6:30	6:31	6:31	6:32

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	10.3	7:52	6:10
2	10.3	7:51	6:11
3	10.4	7:51	6:12
4	10.4	7:50	6:13
5	10.4	7:49	6:13
6	10.4	7:48	6:14
7	10.5	7:47	6:15
8	10.5	7:46	6:15
9	10.5	7:45	6:16
10	10.6	7:44	6:17
11	10.6	7:43	6:18
12	10.6	7:42	6:18
13	10.6	7:41	6:19
14	10.7	7:40	6:20
15	10.7	7:39	6:21
16	10.7	7:37	6:21
17	10.8	7:36	6:22
18	10.8	7:35	6:23
19	10.8	7:34	6:24
20	10.9	7:33	6:24
21	10.9	7:31	6:25
22	10.9	7:30	6:26
23	11.0	7:29	6:26
24	11.0	7:28	6:27
25	11.0	7:26	6:28
26	11.1	7:25	6:29
27	11.1	7:24	6:29
28	11.1	7:22	6:30
29	11.2	7:21	6:31
30	11.2	7:20	6:31
31	11.2	7:18	6:32

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.75 kWh/m².

For context, solar energy here swings from a low near 2.45 kWh/m² to a high of 6.64 kWh/m² in January across the year — August's 3.75 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	3.3	3.3	3.4	3.4	3.4	3.5	3.5	3.5	3.6	3.6	3.6	3.7	3.7	3.7	3.8	3.8	3.8	3.8	3.8	3.9	3.9	3.9	3.9	4.0	4.0	4.0	4.0	4.1	4.1	4.1	4.2
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	3.3	Moderate
2	3.3	Moderate
3	3.4	Moderate
4	3.4	Moderate
5	3.4	Moderate
6	3.5	Moderate
7	3.5	Moderate
8	3.5	Moderate
9	3.6	Moderate
10	3.6	Moderate
11	3.6	Moderate
12	3.7	Moderate
13	3.7	Moderate
14	3.7	Moderate
15	3.8	Moderate
16	3.8	Moderate
17	3.8	Moderate
18	3.8	Moderate
19	3.8	Moderate
20	3.9	Moderate
21	3.9	Moderate
22	3.9	Moderate
23	3.9	Moderate
24	4.0	Moderate
25	4.0	Moderate
26	4.0	Bright
27	4.0	Bright
28	4.1	Bright
29	4.1	Bright
30	4.1	Bright
31	4.2	Bright

Planning a trip in August

Hazard calendar for Chatswood

In seasonPeak

None of Chatswood's seasonal hazards are active in August. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Chatswood sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Cyclone

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is August a good time to visit Chatswood?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.4

Sightseeing

9th-best month of the year

1.7

Beach & pool

10th-best month of the year

August is a reasonable time to visit Chatswood for sightseeing.

What to pack for Chatswood in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Chatswood sees daytime highs around 17°C and nights near 11°C. Little to plan around — just the basics. About 7 days see rain.

Sea temperature near Chatswood in August

The nearest coast averages about 18°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 20 km away) is warmest in February at about 23°C and coldest in August near 18°C.

It's comfortable for a long swim from Nov 13 to Jun 7 — about 6.8 months when the water holds above 20°C.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	23	23	23	22	21	20	19	18	18	19	20	21
Comfort	Refreshing	Refreshing	Refreshing	Refreshing	Refreshing	Cool	Cool	Cool	Cool	Cool	Refreshing	Refreshing

	Sea temperature (°C)	Comfort
Jan	23	Refreshing
Feb	23	Refreshing
Mar	23	Refreshing
Apr	22	Refreshing
May	21	Refreshing
Jun	20	Cool
Jul	19	Cool
Aug	18	Cool
Sep	18	Cool
Oct	19	Cool
Nov	20	Refreshing
Dec	21	Refreshing

UV index in Chatswood in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Chatswood peaks around January 15 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	12	12	9	6	4	2	3	4	5	8	10	12
Level	Extreme	Extreme	Very high	High	Moderate	Moderate	Moderate	Moderate	High	Very high	Very high	Extreme

	UV index (midday)	Level
Jan	12	Extreme
Feb	12	Extreme
Mar	9	Very high
Apr	6	High
May	4	Moderate
Jun	2	Moderate
Jul	3	Moderate
Aug	4	Moderate
Sep	5	High
Oct	8	Very high
Nov	10	Very high
Dec	12	Extreme

Location & terrain

Where is Chatswood?

Chatswood sits at 33.8°S, 151.2°E, 108 m above sea level, in Australia. The nearest listed city is Mosman, 7.0 km away.

Topography around Chatswood

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Chatswood.

Within 3 km, the terrain around Chatswood has only modest variations in elevation — a maximum elevation change of 114 m around an average of 74 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 243 m; within 80 km, large variations in elevation — a maximum elevation change of 1,078 m.

The land around Chatswood is covered by trees (66%) and artificial surfaces (32%) within 3 km, trees (45%), artificial surfaces (30%) and water (20%) within 16 km, and trees (53%) and water (33%) within 80 km.

3 km

114 m

trees 66%

16 km

243 m

trees 45%

80 km

1,078 m

trees 53%

treesgrasslandartificial surfaceswater

← July Chatswood year-round climate September →Best places to visit in August

August weather nearby: Mosman 7.0 km · Ryde 7.0 km · Sydney Central Business District 8.0 km · Sydney 8.0 km · Saint Ives 8.0 km · Eastwood 10 km · Surry Hills 10 km · Manly 10 km

Australia travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type I; 230 V · 50 Hz
Prices: ≈ 90% of US; price level, 2025
GDP per capita: $65,130; 2025
Happiness: 6.9 / 10; World Happiness, 2025
Homicide rate: 0.9; per 100k, 2023
Road deaths: 4.9; per 100k/yr, 2019
Income group: High; World Bank
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Chatswood (-33.8°, 151.1833°, elevation 108 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	17	11
2	17	11
3	17	11
4	17	11
5	17	11
6	17	11
7	17	11
8	17	11
9	17	11
10	17	11
11	17	11
12	17	11
13	17	11
14	17	11
15	17	11
16	17	11
17	17	11
18	17	11
19	17	11
20	17	11
21	17	12
22	17	12
23	17	12
24	17	12
25	17	12
26	18	12
27	18	12
28	18	12
29	18	12
30	18	12
31	18	12

	Clearer (%)	Cloudier (%)
1	80	20
2	80	20
3	81	19
4	80	20
5	81	19
6	81	19
7	81	19
8	81	19
9	81	19
10	81	19
11	81	19
12	80	20
13	80	20
14	80	20
15	80	20
16	79	21
17	79	21
18	79	21
19	78	22
20	78	22
21	78	22
22	77	23
23	77	23
24	76	24
25	75	25
26	75	25
27	75	25
28	75	25
29	75	25
30	74	26
31	74	26

	Rain chance (%)
1	21
2	20
3	20
4	19
5	19
6	19
7	19
8	19
9	19
10	19
11	19
12	20
13	20
14	20
15	20
16	20
17	21
18	21
19	22
20	22
21	23
22	23
23	24
24	24
25	25
26	25
27	25
28	26
29	26
30	26
31	26

	Dry (%)	Comfortable (%)
1	98	2
2	98	2
3	98	2
4	99	1
5	99	1
6	99	1
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	98	2
17	98	2
18	98	2
19	98	2
20	97	3
21	97	3
22	96	4
23	96	4
24	95	5
25	94	6
26	93	7
27	93	7
28	92	8
29	92	8
30	91	9
31	91	9

	Avg high (°C)	Avg low (°C)
1	17	11
2	17	11
3	17	11
4	17	11
5	17	11
6	17	11
7	17	11
8	17	11
9	17	11
10	17	11
11	17	11
12	17	11
13	17	11
14	17	11
15	17	11
16	17	11
17	17	11
18	17	11
19	17	11
20	17	11
21	17	12
22	17	12
23	17	12
24	17	12
25	17	12
26	18	12
27	18	12
28	18	12
29	18	12
30	18	12
31	18	12

	Clearer (%)	Cloudier (%)
1	80	20
2	80	20
3	81	19
4	80	20
5	81	19
6	81	19
7	81	19
8	81	19
9	81	19
10	81	19
11	81	19
12	80	20
13	80	20
14	80	20
15	80	20
16	79	21
17	79	21
18	79	21
19	78	22
20	78	22
21	78	22
22	77	23
23	77	23
24	76	24
25	75	25
26	75	25
27	75	25
28	75	25
29	75	25
30	74	26
31	74	26

	Rain chance (%)
1	21
2	20
3	20
4	19
5	19
6	19
7	19
8	19
9	19
10	19
11	19
12	20
13	20
14	20
15	20
16	20
17	21
18	21
19	22
20	22
21	23
22	23
23	24
24	24
25	25
26	25
27	25
28	26
29	26
30	26
31	26

	Dry (%)	Comfortable (%)
1	98	2
2	98	2
3	98	2
4	99	1
5	99	1
6	99	1
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	98	2
17	98	2
18	98	2
19	98	2
20	97	3
21	97	3
22	96	4
23	96	4
24	95	5
25	94	6
26	93	7
27	93	7
28	92	8
29	92	8
30	91	9
31	91	9

	Avg high (°C)	Avg low (°C)
1	17	11
2	17	11
3	17	11
4	17	11
5	17	11
6	17	11
7	17	11
8	17	11
9	17	11
10	17	11
11	17	11
12	17	11
13	17	11
14	17	11
15	17	11
16	17	11
17	17	11
18	17	11
19	17	11
20	17	11
21	17	12
22	17	12
23	17	12
24	17	12
25	17	12
26	18	12
27	18	12
28	18	12
29	18	12
30	18	12
31	18	12

	Clearer (%)	Cloudier (%)
1	80	20
2	80	20
3	81	19
4	80	20
5	81	19
6	81	19
7	81	19
8	81	19
9	81	19
10	81	19
11	81	19
12	80	20
13	80	20
14	80	20
15	80	20
16	79	21
17	79	21
18	79	21
19	78	22
20	78	22
21	78	22
22	77	23
23	77	23
24	76	24
25	75	25
26	75	25
27	75	25
28	75	25
29	75	25
30	74	26
31	74	26

	Rain chance (%)
1	21
2	20
3	20
4	19
5	19
6	19
7	19
8	19
9	19
10	19
11	19
12	20
13	20
14	20
15	20
16	20
17	21
18	21
19	22
20	22
21	23
22	23
23	24
24	24
25	25
26	25
27	25
28	26
29	26
30	26
31	26

	Dry (%)	Comfortable (%)
1	98	2
2	98	2
3	98	2
4	99	1
5	99	1
6	99	1
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	98	2
17	98	2
18	98	2
19	98	2
20	97	3
21	97	3
22	96	4
23	96	4
24	95	5
25	94	6
26	93	7
27	93	7
28	92	8
29	92	8
30	91	9
31	91	9