Mount Martha weather in August

In August, Mount Martha sees average daytime highs of 13°C and overnight lows near 9°C, with 71 mm of rain across 13 wet days and about 10.5 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 13°C through the month. The sky is clear or mostly clear about 21% of the time in August, and the air most often feels dry.

Daylight stretches from about 10 hours at the start of August to 11 h 06 min by month's end. Set against the rest of the year, August is Mount Martha's 7th-clearest and 1st-windiest month. For the whole year in context, see Mount Martha's year-round climate.

Daytime high: 13°; 11th warmest
Overnight low: 9°; 2nd coldest
Rainfall: 71 mm; 13 wet days
Daylight: 10 h 30 min; 8:09 AM – 6:39 PM
Cloud cover: 60%; 7th clearest
Wind: 22 km/h; 1st windiest
Solar energy: 2.85 kWh/m²
Travel score: 3.4; out of 10

Mount Martha is locality in Victoria, Australia.

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

← July Mount Martha 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 13°C through the month.

A typical August day in Mount Martha reaches about 13°C in the afternoon and slips back to 9°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 15°C. Set against its neighbours, August runs on par with July and about 1°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)	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	14	14	14
Avg low (°C)	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	10	10	10	10	10	10

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

Mount Martha weather by month

How August compares with the rest of the year at a glance. August is the 11th-warmest and 2nd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	22° / 16°	50	6.4	14.4	7.3
Feb	22° / 17°	46	5.8	13.5	7.3
Mar	21° / 16°	43	7.3	12.3	6.9
Apr	18° / 14°	59	8.8	11	6.0
May	15° / 12°	68	11.2	10	4.6
Jun	13° / 10°	70	11.8	9.4	3.6
Jul	12° / 9°	62	12.6	9.6	3.2
Aug	13° / 9°	71	13	10.5	3.4
Sep	14° / 10°	72	12.6	11.7	4.0
Oct	16° / 11°	67	11.1	13	4.9
Nov	18° / 13°	64	9.1	14.1	5.9
Dec	20° / 15°	59	8.8	14.6	6.5

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 28% of August, with mostly cloudy or overcast conditions the remaining 51%.

	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 (%)	49	48	48	47	46	46	46	46	46	46	46	46	46	47	48	48	49	49	49	50	51	51	51	51	51	51	51	51	51	51	51
Cloudier (%)	51	52	52	53	54	54	54	54	54	54	54	54	54	53	52	52	51	51	51	50	49	49	49	49	49	49	49	49	49	49	49

	Clearer (%)	Cloudier (%)
1	49	51
2	48	52
3	48	52
4	47	53
5	46	54
6	46	54
7	46	54
8	46	54
9	46	54
10	46	54
11	46	54
12	46	54
13	46	54
14	47	53
15	48	52
16	48	52
17	49	51
18	49	51
19	49	51
20	50	50
21	51	49
22	51	49
23	51	49
24	51	49
25	51	49
26	51	49
27	51	49
28	51	49
29	51	49
30	51	49
31	51	49

Chance of precipitation in August

Any precipitation

Mount Martha gets around 71 mm of rain over 13 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 42% and peaks near 46% on the wettest days. The odds ease 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 (%)	45	45	46	46	46	46	46	46	46	46	45	45	45	44	44	43	42	42	41	40	39	38	38	37	37	37	36	36	36	37	37

	Rain chance (%)
1	45
2	45
3	46
4	46
5	46
6	46
7	46
8	46
9	46
10	46
11	45
12	45
13	45
14	44
15	44
16	43
17	42
18	42
19	41
20	40
21	39
22	38
23	38
24	37
25	37
26	37
27	36
28	36
29	36
30	37
31	37

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 100% 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 (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

Wind in August

Winds average 22 km/h in August, the windiest month of the year.

Across August, daily wind ranges from about 20 km/h on the calmest days to 23 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)	22	22	22	23	23	23	23	23	23	23	23	23	23	23	23	23	22	22	22	22	22	22	21	21	21	21	21	21	21	21	20
Feels	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy

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

Sunrise & sunset in August

DaylightNight

Daylight runs from about 10 hours at the start of August to 11 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over August. Sunrise moves from 8:26 AM to 7:47 AM, and sunset from 6:26 PM to 6:53 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)	10.0	10.0	10.1	10.1	10.1	10.2	10.2	10.2	10.3	10.3	10.3	10.4	10.4	10.4	10.5	10.5	10.5	10.6	10.6	10.7	10.7	10.7	10.8	10.8	10.8	10.9	10.9	11.0	11.0	11.0	11.1
Sunrise (AM)	8:26	8:25	8:24	8:23	8:22	8:21	8:20	8:19	8:18	8:16	8:15	8:14	8:13	8:12	8:10	8:09	8:08	8:06	8:05	8:03	8:02	8:01	7:59	7:58	7:56	7:55	7:53	7:52	7:50	7:49	7:47
Sunset (PM)	6:26	6:27	6:28	6:28	6:29	6:30	6:31	6:32	6:33	6:34	6:35	6:36	6:36	6:37	6:38	6:39	6:40	6:41	6:42	6:43	6:44	6:45	6:45	6:46	6:47	6:48	6:49	6:50	6:51	6:52	6:53

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	10.0	8:26	6:26
2	10.0	8:25	6:27
3	10.1	8:24	6:28
4	10.1	8:23	6:28
5	10.1	8:22	6:29
6	10.2	8:21	6:30
7	10.2	8:20	6:31
8	10.2	8:19	6:32
9	10.3	8:18	6:33
10	10.3	8:16	6:34
11	10.3	8:15	6:35
12	10.4	8:14	6:36
13	10.4	8:13	6:36
14	10.4	8:12	6:37
15	10.5	8:10	6:38
16	10.5	8:09	6:39
17	10.5	8:08	6:40
18	10.6	8:06	6:41
19	10.6	8:05	6:42
20	10.7	8:03	6:43
21	10.7	8:02	6:44
22	10.7	8:01	6:45
23	10.8	7:59	6:45
24	10.8	7:58	6:46
25	10.8	7:56	6:47
26	10.9	7:55	6:48
27	10.9	7:53	6:49
28	11.0	7:52	6:50
29	11.0	7:50	6:51
30	11.0	7:49	6:52
31	11.1	7:47	6:53

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 2.85 kWh/m².

For context, solar energy here swings from a low near 1.83 kWh/m² to a high of 7.29 kWh/m² in January across the year — August's 2.85 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)	2.4	2.4	2.4	2.5	2.5	2.5	2.5	2.5	2.6	2.6	2.6	2.7	2.7	2.7	2.8	2.8	2.9	2.9	2.9	3.0	3.0	3.1	3.1	3.2	3.2	3.3	3.3	3.3	3.4	3.4	3.5
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	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	2.4	Moderate
2	2.4	Moderate
3	2.4	Moderate
4	2.5	Moderate
5	2.5	Moderate
6	2.5	Moderate
7	2.5	Moderate
8	2.5	Moderate
9	2.6	Moderate
10	2.6	Moderate
11	2.6	Moderate
12	2.7	Moderate
13	2.7	Moderate
14	2.7	Moderate
15	2.8	Moderate
16	2.8	Moderate
17	2.9	Moderate
18	2.9	Moderate
19	2.9	Moderate
20	3.0	Moderate
21	3.0	Moderate
22	3.1	Moderate
23	3.1	Moderate
24	3.2	Moderate
25	3.2	Moderate
26	3.3	Moderate
27	3.3	Moderate
28	3.3	Moderate
29	3.4	Moderate
30	3.4	Moderate
31	3.5	Moderate

Planning a trip in August

Is August a good time to visit Mount Martha?

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

3.4

Sightseeing

11th-best month of the year

0.0

Beach & pool

11th-best month of the year

August is a weaker month for outdoor sightseeing in Mount Martha.

What to pack for Mount Martha in August

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

In August, Mount Martha sees daytime highs around 13°C and nights near 9°C. Worth packing: a warm layer, rain gear and a windbreaker. About 13 days see rain.

a warm layerrain geara windbreaker

Sea temperature near Mount Martha in August

The nearest coast averages about 12°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 17 km away) is warmest in February at about 20°C and coldest in August near 12°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	19	20	19	17	16	14	13	12	13	14	16	17
Comfort	Cool	Cool	Cool	Cool	Cool	Bracing	Bracing	Bracing	Bracing	Bracing	Cool	Cool

	Sea temperature (°C)	Comfort
Jan	19	Cool
Feb	20	Cool
Mar	19	Cool
Apr	17	Cool
May	16	Cool
Jun	14	Bracing
Jul	13	Bracing
Aug	12	Bracing
Sep	13	Bracing
Oct	14	Bracing
Nov	16	Cool
Dec	17	Cool

UV index in Mount Martha in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mount Martha peaks around December 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	11	10	8	5	2	2	2	3	4	7	9	12
Level	Extreme	Very high	Very high	Moderate	Moderate	Low	Moderate	Moderate	Moderate	Very high	Very high	Extreme

	UV index (midday)	Level
Jan	11	Extreme
Feb	10	Very high
Mar	8	Very high
Apr	5	Moderate
May	2	Moderate
Jun	2	Low
Jul	2	Moderate
Aug	3	Moderate
Sep	4	Moderate
Oct	7	Very high
Nov	9	Very high
Dec	12	Extreme

Location & terrain

Where is Mount Martha?

Mount Martha sits at 38.3°S, 145.0°E, 11 m above sea level, in Australia. The nearest listed city is Mornington, 6.0 km away.

Topography around Mount Martha

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

Within 3 km, the terrain around Mount Martha has only modest variations in elevation — a maximum elevation change of 161 m around an average of 34 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 311 m; within 80 km, large variations in elevation — a maximum elevation change of 1,075 m.

The land around Mount Martha is covered by water (41%) and trees (32%) within 3 km, water (47%), trees (23%) and grassland (23%) within 16 km, and water (40%) and grassland (29%) within 80 km.

3 km

161 m

water 41%

16 km

311 m

water 47%

80 km

1,075 m

water 40%

treesgrasslandcroplandartificial surfaceswaterwetland

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

August weather nearby: Mornington 6.0 km · Mount Eliza 11 km · Frankston South 15 km · Frankston 16 km · Langwarrin 17 km · Frankston East 18 km · Seaford 21 km · Carrum Downs 23 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 Mount Martha (-38.2667°, 145.0167°, elevation 11 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. 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	13	9
2	13	9
3	13	9
4	13	9
5	13	9
6	13	9
7	13	9
8	13	9
9	13	9
10	13	9
11	13	9
12	13	9
13	13	9
14	13	9
15	13	9
16	13	9
17	13	9
18	13	9
19	13	9
20	13	9
21	13	9
22	13	9
23	13	9
24	13	9
25	13	9
26	13	10
27	13	10
28	13	10
29	14	10
30	14	10
31	14	10

	Clearer (%)	Cloudier (%)
1	49	51
2	48	52
3	48	52
4	47	53
5	46	54
6	46	54
7	46	54
8	46	54
9	46	54
10	46	54
11	46	54
12	46	54
13	46	54
14	47	53
15	48	52
16	48	52
17	49	51
18	49	51
19	49	51
20	50	50
21	51	49
22	51	49
23	51	49
24	51	49
25	51	49
26	51	49
27	51	49
28	51	49
29	51	49
30	51	49
31	51	49

	Rain chance (%)
1	45
2	45
3	46
4	46
5	46
6	46
7	46
8	46
9	46
10	46
11	45
12	45
13	45
14	44
15	44
16	43
17	42
18	42
19	41
20	40
21	39
22	38
23	38
24	37
25	37
26	37
27	36
28	36
29	36
30	37
31	37

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

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

	Clearer (%)	Cloudier (%)
1	49	51
2	48	52
3	48	52
4	47	53
5	46	54
6	46	54
7	46	54
8	46	54
9	46	54
10	46	54
11	46	54
12	46	54
13	46	54
14	47	53
15	48	52
16	48	52
17	49	51
18	49	51
19	49	51
20	50	50
21	51	49
22	51	49
23	51	49
24	51	49
25	51	49
26	51	49
27	51	49
28	51	49
29	51	49
30	51	49
31	51	49

	Rain chance (%)
1	45
2	45
3	46
4	46
5	46
6	46
7	46
8	46
9	46
10	46
11	45
12	45
13	45
14	44
15	44
16	43
17	42
18	42
19	41
20	40
21	39
22	38
23	38
24	37
25	37
26	37
27	36
28	36
29	36
30	37
31	37

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

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

	Clearer (%)	Cloudier (%)
1	49	51
2	48	52
3	48	52
4	47	53
5	46	54
6	46	54
7	46	54
8	46	54
9	46	54
10	46	54
11	46	54
12	46	54
13	46	54
14	47	53
15	48	52
16	48	52
17	49	51
18	49	51
19	49	51
20	50	50
21	51	49
22	51	49
23	51	49
24	51	49
25	51	49
26	51	49
27	51	49
28	51	49
29	51	49
30	51	49
31	51	49

	Rain chance (%)
1	45
2	45
3	46
4	46
5	46
6	46
7	46
8	46
9	46
10	46
11	45
12	45
13	45
14	44
15	44
16	43
17	42
18	42
19	41
20	40
21	39
22	38
23	38
24	37
25	37
26	37
27	36
28	36
29	36
30	37
31	37

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100