Mount Martha in Spring
In spring (September, October and November), Mount Martha sees average daytime highs around 16°C and overnight lows near 12°C, with 203 mm of rain over about 33 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs climb from about 14°C in early September to 19°C by late November. The sky is clear or mostly clear about 24% of the time across spring, and the air most often feels dry.
Spring is Mount Martha's 3rd-best season to visit on our travel score. For the whole year in context, see Mount Martha's year-round climate.
- Avg daytime high
- 16°C
- 3rd-warmest season
- Avg overnight low
- 12°C
- Rainfall
- 203 mm
- 33 wet days
- Avg wind
- 20 km/h
- Travel score
- 4.9
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Mount Martha in Spring
Over the season highs climb from about 14°C in early September to 19°C by late November.
A typical spring day in Mount Martha reaches about 16°C and drops to 12°C overnight. The warmest of the three months is November, the coolest September.
Mount Martha weather by month
How the three spring months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| 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 Spring
The sky is clear or mostly clear about 24% of the time across spring.
Chance of precipitation in Spring
Mount Martha gets around 203 mm of rain over 33 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 20 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 06 min in early September to 14 h 24 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 5.3 kWh/m².
Is spring a good time to visit Mount Martha?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit Mount Martha for sightseeing.
What to pack for Mount Martha in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Mount Martha sees daytime highs around 16°C and nights near 12°C. Pack sun protection. Worth having: a warm layer, rain gear and a windbreaker. About 33 days see rain.
Sea temperature near Mount Martha in Spring
The nearest coast averages about 14°C across spring — 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 Spring
Clear-sky midday UV across spring averages around 7 — 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 |
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.
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.