Horsham in Summer
In summer (December, January and February), Horsham sees average daytime highs around 28°C and overnight lows near 13°C, with 91 mm of rain over about 12 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Over the season highs climb from about 25°C in early December to 28°C by late February. The sky is clear or mostly clear about 49% of the time across summer, and the air most often feels dry.
Summer is Horsham's best season of the year to visit on our travel score. For the whole year in context, see Horsham's year-round climate.
- Avg daytime high
- 28°C
- warmest season of the year
- Avg overnight low
- 13°C
- Rainfall
- 91 mm
- 12 wet days
- Avg wind
- 15 km/h
- Travel score
- 7.0
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Horsham in Summer
Over the season highs climb from about 25°C in early December to 28°C by late February.
A typical summer day in Horsham reaches about 28°C and drops to 13°C overnight. The warmest of the three months is January, the coolest December.
Horsham weather by month
How the three summer months (December, January and February) 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 | 29° / 14° | 32 | 3.8 | 14.2 | 6.5 |
| Feb | 28° / 14° | 22 | 3.2 | 13.4 | 7.0 |
| Mar | 25° / 12° | 20 | 3.3 | 12.3 | 8.0 |
| Apr | 21° / 9° | 26 | 4.3 | 11.1 | 7.3 |
| May | 17° / 7° | 37 | 6.1 | 10.1 | 5.6 |
| Jun | 14° / 6° | 44 | 7.7 | 9.5 | 4.0 |
| Jul | 13° / 5° | 42 | 8.6 | 9.7 | 3.6 |
| Aug | 14° / 5° | 44 | 8.9 | 10.6 | 4.1 |
| Sep | 16° / 6° | 47 | 8.4 | 11.8 | 5.3 |
| Oct | 20° / 7° | 37 | 6.1 | 12.9 | 6.7 |
| Nov | 23° / 10° | 39 | 5.8 | 14 | 7.5 |
| Dec | 27° / 12° | 37 | 4.8 | 14.5 | 7.5 |
Cloud cover in Summer
The sky is clear or mostly clear about 49% of the time across summer.
Chance of precipitation in Summer
Horsham gets around 91 mm of rain over 12 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 15 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 18 min in early December to 12 h 54 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 7.4 kWh/m².
Is summer a good time to visit Horsham?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is one of the better times to visit Horsham for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Horsham in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Horsham sees daytime highs around 28°C and nights near 13°C. Pack light clothes and sun protection. About 12 days see rain.
UV index in Horsham in Summer
Clear-sky midday UV across summer averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Horsham peaks around December 20 at about 13 (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) | 12 | 11 | 9 | 5 | 3 | 2 | 2 | 3 | 5 | 7 | 10 | 13 |
| Level | Extreme | Extreme | Very high | Moderate | Moderate | Low | Moderate | Moderate | Moderate | Very high | Very high | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 12 | Extreme |
| Feb | 11 | Extreme |
| Mar | 9 | Very high |
| Apr | 5 | Moderate |
| May | 3 | Moderate |
| Jun | 2 | Low |
| Jul | 2 | Moderate |
| Aug | 3 | Moderate |
| Sep | 5 | Moderate |
| Oct | 7 | Very high |
| Nov | 10 | Very high |
| Dec | 13 | Extreme |
Where is Horsham?
Horsham sits at 36.7°S, 142.2°E, 133 m above sea level, in Australia. The nearest listed city is Ballarat, 174 km away.
Topography around Horsham
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Horsham.
Within 3 km, the terrain around Horsham has only modest variations in elevation — a maximum elevation change of 12 m around an average of 129 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 50 m; within 80 km, large variations in elevation — a maximum elevation change of 1,076 m.
The land around Horsham is covered by cropland (46%) and artificial surfaces (36%) within 3 km, cropland (80%) within 16 km, and cropland (55%) and grassland (22%) 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 Horsham (-36.7113°, 142.1998°, elevation 133 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.