Mount Martha weather in May

In May, Mount Martha sees average daytime highs of 15°C and overnight lows near 12°C, with 68 mm of rain across 11.2 wet days and about 10 hours of daylight. It is the 8th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 16°C in the first days to 14°C by the end. The sky is clear or mostly clear about 17% of the time in May, and the air most often feels dry.

Daylight stretches from about 10 h 24 min at the start of May to 9 h 36 min by month's end. Set against the rest of the year, May is Mount Martha's 12th-clearest and 6th-windiest month. For the whole year in context, see Mount Martha's year-round climate.

Daytime high: 15°; 8th warmest
Overnight low: 12°; 6th coldest
Rainfall: 68 mm; 11.2 wet days
Daylight: 9 h 54 min; 8:18 AM – 6:14 PM
Cloud cover: 64%; 12th clearest
Wind: 20 km/h; 6th windiest
Solar energy: 2.27 kWh/m²
Travel score: 4.6; out of 10

Mount Martha is locality in Victoria, Australia.

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

← April Mount Martha year-round climate June →Best places to visit in May

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 16°C in the first days to 14°C by the end.

A typical May day in Mount Martha reaches about 15°C in the afternoon and slips back to 12°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 18°C. Set against its neighbours, May runs about 3°C cooler than April and about 2°C warmer than June.

	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	16	16	16	16	16	16	16	16	16	16	16	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	14	14
Avg low (°C)	13	13	13	13	13	13	13	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	11	11	11	11	11	11

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

Mount Martha weather by month

How May compares with the rest of the year at a glance. May is the 8th-warmest and 4th-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 May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 22% of May, with mostly cloudy or overcast conditions the remaining 60%.

	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 (%)	38	37	38	37	37	36	37	37	37	38	38	38	39	39	40	40	41	41	40	40	40	40	41	41	41	42	42	42	41	42	42
Cloudier (%)	62	63	62	63	63	64	63	63	63	62	62	62	61	61	60	60	59	59	60	60	60	60	59	59	59	58	58	58	59	58	58

	Clearer (%)	Cloudier (%)
1	38	62
2	37	63
3	38	62
4	37	63
5	37	63
6	36	64
7	37	63
8	37	63
9	37	63
10	38	62
11	38	62
12	38	62
13	39	61
14	39	61
15	40	60
16	40	60
17	41	59
18	41	59
19	40	60
20	40	60
21	40	60
22	40	60
23	41	59
24	41	59
25	41	59
26	42	58
27	42	58
28	42	58
29	41	59
30	42	58
31	42	58

Chance of precipitation in May

Any precipitation

Mount Martha gets around 68 mm of rain over 11.2 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 35% and peaks near 37% on the wettest days.

	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 (%)	34	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35	35	36	36	36	36	36	36	36	36	36	37	37	37

	Rain chance (%)
1	34
2	35
3	35
4	35
5	35
6	35
7	35
8	35
9	35
10	35
11	35
12	35
13	35
14	35
15	35
16	35
17	35
18	35
19	35
20	36
21	36
22	36
23	36
24	36
25	36
26	36
27	36
28	36
29	37
30	37
31	37

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 96% 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 (%)	92	93	94	94	94	95	95	95	95	95	96	96	96	96	96	96	96	97	97	97	97	97	97	98	98	98	98	98	99	99	99
Comfortable (%)	8	7	6	6	6	5	5	5	5	5	4	4	4	4	4	4	4	3	3	3	3	3	3	2	2	2	2	2	1	1	1

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

Wind in May

Winds average 20 km/h in May.

Across May, daily wind ranges from about 19 km/h on the calmest days to 20 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)	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	20	20	20	20	20	20	20	20	20	20
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	19	light breeze
2	19	light breeze
3	19	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	19	light breeze
19	19	light breeze
20	19	light breeze
21	19	light breeze
22	20	light breeze
23	20	light breeze
24	20	light breeze
25	20	light breeze
26	20	light breeze
27	20	light breeze
28	20	light breeze
29	20	light breeze
30	20	light breeze
31	20	light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 10 h 24 min at the start of May to 9 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over May. Sunrise moves from 8:04 AM to 8:31 AM, and sunset from 6:30 PM to 6:04 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)	10.4	10.4	10.4	10.3	10.3	10.3	10.2	10.2	10.2	10.1	10.1	10.1	10.0	10.0	10.0	9.9	9.9	9.9	9.8	9.8	9.8	9.8	9.7	9.7	9.7	9.7	9.6	9.6	9.6	9.6	9.6
Sunrise (AM)	8:04	8:05	8:06	8:07	8:08	8:09	8:10	8:11	8:12	8:13	8:14	8:15	8:15	8:16	8:17	8:18	8:19	8:20	8:21	8:22	8:23	8:23	8:24	8:25	8:26	8:27	8:28	8:28	8:29	8:30	8:31
Sunset (PM)	6:30	6:29	6:28	6:26	6:25	6:24	6:23	6:22	6:21	6:20	6:19	6:18	6:17	6:16	6:15	6:14	6:13	6:12	6:12	6:11	6:10	6:09	6:09	6:08	6:07	6:07	6:06	6:06	6:05	6:05	6:04

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	10.4	8:04	6:30
2	10.4	8:05	6:29
3	10.4	8:06	6:28
4	10.3	8:07	6:26
5	10.3	8:08	6:25
6	10.3	8:09	6:24
7	10.2	8:10	6:23
8	10.2	8:11	6:22
9	10.2	8:12	6:21
10	10.1	8:13	6:20
11	10.1	8:14	6:19
12	10.1	8:15	6:18
13	10.0	8:15	6:17
14	10.0	8:16	6:16
15	10.0	8:17	6:15
16	9.9	8:18	6:14
17	9.9	8:19	6:13
18	9.9	8:20	6:12
19	9.8	8:21	6:12
20	9.8	8:22	6:11
21	9.8	8:23	6:10
22	9.8	8:23	6:09
23	9.7	8:24	6:09
24	9.7	8:25	6:08
25	9.7	8:26	6:07
26	9.7	8:27	6:07
27	9.6	8:28	6:06
28	9.6	8:28	6:06
29	9.6	8:29	6:05
30	9.6	8:30	6:05
31	9.6	8:31	6:04

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 2.27 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 — May's 2.27 kWh/m² sits near the bottom.

	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)	2.7	2.7	2.6	2.6	2.6	2.5	2.5	2.5	2.4	2.4	2.4	2.4	2.3	2.3	2.3	2.3	2.3	2.2	2.2	2.2	2.2	2.1	2.1	2.1	2.1	2.1	2.0	2.0	2.0	2.0	2.0
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	Dim	Dim

	Solar energy (kWh/m²)	Level
1	2.7	Moderate
2	2.7	Moderate
3	2.6	Moderate
4	2.6	Moderate
5	2.6	Moderate
6	2.5	Moderate
7	2.5	Moderate
8	2.5	Moderate
9	2.4	Moderate
10	2.4	Moderate
11	2.4	Moderate
12	2.4	Moderate
13	2.3	Moderate
14	2.3	Moderate
15	2.3	Moderate
16	2.3	Moderate
17	2.3	Moderate
18	2.2	Moderate
19	2.2	Moderate
20	2.2	Moderate
21	2.2	Moderate
22	2.1	Moderate
23	2.1	Moderate
24	2.1	Moderate
25	2.1	Moderate
26	2.1	Moderate
27	2.0	Moderate
28	2.0	Moderate
29	2.0	Moderate
30	2.0	Dim
31	2.0	Dim

Planning a trip in May

Is May a good time to visit Mount Martha?

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

4.6

Sightseeing

8th-best month of the year

0.4

Beach & pool

8th-best month of the year

May is a reasonable time to visit Mount Martha for sightseeing.

What to pack for Mount Martha in May

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

In May, Mount Martha sees daytime highs around 15°C and nights near 12°C. Worth packing: a warm layer and rain gear. About 11 days see rain.

a warm layerrain gear

Sea temperature near Mount Martha in May

The nearest coast averages about 16°C in May — 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 May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 2. 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

← April Mount Martha year-round climate June →Best places to visit in May

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

	Clearer (%)	Cloudier (%)
1	38	62
2	37	63
3	38	62
4	37	63
5	37	63
6	36	64
7	37	63
8	37	63
9	37	63
10	38	62
11	38	62
12	38	62
13	39	61
14	39	61
15	40	60
16	40	60
17	41	59
18	41	59
19	40	60
20	40	60
21	40	60
22	40	60
23	41	59
24	41	59
25	41	59
26	42	58
27	42	58
28	42	58
29	41	59
30	42	58
31	42	58

	Rain chance (%)
1	34
2	35
3	35
4	35
5	35
6	35
7	35
8	35
9	35
10	35
11	35
12	35
13	35
14	35
15	35
16	35
17	35
18	35
19	35
20	36
21	36
22	36
23	36
24	36
25	36
26	36
27	36
28	36
29	37
30	37
31	37

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

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

	Clearer (%)	Cloudier (%)
1	38	62
2	37	63
3	38	62
4	37	63
5	37	63
6	36	64
7	37	63
8	37	63
9	37	63
10	38	62
11	38	62
12	38	62
13	39	61
14	39	61
15	40	60
16	40	60
17	41	59
18	41	59
19	40	60
20	40	60
21	40	60
22	40	60
23	41	59
24	41	59
25	41	59
26	42	58
27	42	58
28	42	58
29	41	59
30	42	58
31	42	58

	Rain chance (%)
1	34
2	35
3	35
4	35
5	35
6	35
7	35
8	35
9	35
10	35
11	35
12	35
13	35
14	35
15	35
16	35
17	35
18	35
19	35
20	36
21	36
22	36
23	36
24	36
25	36
26	36
27	36
28	36
29	37
30	37
31	37

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

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

	Clearer (%)	Cloudier (%)
1	38	62
2	37	63
3	38	62
4	37	63
5	37	63
6	36	64
7	37	63
8	37	63
9	37	63
10	38	62
11	38	62
12	38	62
13	39	61
14	39	61
15	40	60
16	40	60
17	41	59
18	41	59
19	40	60
20	40	60
21	40	60
22	40	60
23	41	59
24	41	59
25	41	59
26	42	58
27	42	58
28	42	58
29	41	59
30	42	58
31	42	58

	Rain chance (%)
1	34
2	35
3	35
4	35
5	35
6	35
7	35
8	35
9	35
10	35
11	35
12	35
13	35
14	35
15	35
16	35
17	35
18	35
19	35
20	36
21	36
22	36
23	36
24	36
25	36
26	36
27	36
28	36
29	37
30	37
31	37

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