Climate and average weather in Mount Barker
In Mount Barker, the summers are warm, fairly dry, and mostly clear and the winters are cool and partly cloudy.
Over the course of the year, the temperature in Mount Barker typically varies from 6°C to 27°C, and is rarely below 3°C or above 37°C. January is the hottest month of the year, while July is the coldest.
Based on the travel score, the best times of year to visit Mount Barker for warm-weather activities are from early January to late April and mid October to late December.
- Hottest
- Jan
- 27°
- Coldest
- Jul
- 6°
- Wettest
- Aug
- 56 mm
- Driest
- Feb
- 18 mm
- Rain / yr
- 451 mm
- 82 wet days
- Daylight
- 9.6–14.4 h
- shortest–longest
- Elevation
- 322 m
- 35.1°S
- Clearest
- Jan
- 37% cloud
Mount Barker is city in South Australia.
- Founded
- 1839
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Mount Barker weather by month, at a glance
The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.
Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around early January to late April.
Temperature through the year
Daily average highs and lows in Mount Barker, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
The hot season lasts 3.6 months, from December 1 to March 18, with daily high temperatures above 24°C. The hottest month of the year in Mount Barker is January, with an average high of 27°C and low of 14°C.
The cool season lasts 3.4 months, from May 24 to September 4, with daily high temperatures below 16°C. The coldest month of the year in Mount Barker is July, with an average low of 6°C and high of 13°C.
Days typically run about 10°C warmer than nights, with the widest day–night swing (around 13°C) in January.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 27 | 24 | 21 | 17 | 14 | 13 | 14 | 17 | 20 | 23 | 25 |
| Avg low (°C) | 14 | 15 | 13 | 11 | 9 | 7 | 6 | 7 | 8 | 9 | 11 | 13 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 27 | 14 |
| Feb | 27 | 15 |
| Mar | 24 | 13 |
| Apr | 21 | 11 |
| May | 17 | 9 |
| Jun | 14 | 7 |
| Jul | 13 | 6 |
| Aug | 14 | 7 |
| Sep | 17 | 8 |
| Oct | 20 | 9 |
| Nov | 23 | 11 |
| Dec | 25 | 13 |
Average hourly temperature in Mount Barker
A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on January afternoons, near 27°C, and coldest before dawn in July, near 6°C.
Mount Barker weather by month
Every month at a glance. Click a month for its detailed page.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 27° / 14° | 21 | 3.5 | 14.1 | 7.8 |
| Feb | 27° / 15° | 18 | 2.8 | 13.3 | 8.0 |
| Mar | 24° / 13° | 18 | 3.4 | 12.3 | 8.1 |
| Apr | 21° / 11° | 33 | 5.3 | 11.1 | 7.2 |
| May | 17° / 9° | 44 | 8.4 | 10.2 | 5.5 |
| Jun | 14° / 7° | 51 | 9.3 | 9.7 | 4.1 |
| Jul | 13° / 6° | 56 | 10.4 | 9.9 | 3.7 |
| Aug | 14° / 7° | 56 | 10.8 | 10.7 | 4.2 |
| Sep | 17° / 8° | 55 | 9.7 | 11.8 | 5.5 |
| Oct | 20° / 9° | 36 | 6.8 | 12.9 | 6.8 |
| Nov | 23° / 11° | 34 | 6 | 13.8 | 7.5 |
| Dec | 25° / 13° | 29 | 5.3 | 14.3 | 7.8 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Mount Barker gets about 451 mm of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.
The wetter season lasts 5.5 months, from around Apr 27 to Oct 11, peaking in August at about 36% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Feb 22.
August is the wettest month by volume, with 56 mm over about 11 wet days; February is the driest, with 18 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 12 | 10 | 11 | 18 | 27 | 31 | 33 | 35 | 32 | 23 | 20 | 17 |
| Rain days | 4 | 3 | 3 | 5 | 8 | 9 | 10 | 11 | 10 | 7 | 6 | 5 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 12 | 4 |
| Feb | 10 | 3 |
| Mar | 11 | 3 |
| Apr | 18 | 5 |
| May | 27 | 8 |
| Jun | 31 | 9 |
| Jul | 33 | 10 |
| Aug | 35 | 11 |
| Sep | 32 | 10 |
| Oct | 23 | 7 |
| Nov | 20 | 6 |
| Dec | 17 | 5 |
Monthly rainfall
Over a full year, Mount Barker collects about 451 mm of rain across 82 wet days — roughly 38 mm in an average month.
It doesn’t fall evenly. August is the wettest month with 56 mm, while February is the driest at just 18 mm. The three wettest months alone bring about 37% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 21 | 18 | 18 | 33 | 44 | 51 | 56 | 56 | 55 | 36 | 34 | 29 |
| Rain days | 4 | 3 | 3 | 5 | 8 | 9 | 10 | 11 | 10 | 7 | 6 | 5 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 21 | 4 |
| Feb | 18 | 3 |
| Mar | 18 | 3 |
| Apr | 33 | 5 |
| May | 44 | 8 |
| Jun | 51 | 9 |
| Jul | 56 | 10 |
| Aug | 56 | 11 |
| Sep | 55 | 10 |
| Oct | 36 | 7 |
| Nov | 34 | 6 |
| Dec | 29 | 5 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Mount Barker, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.
The clearer part of the year begins around November 17 and lasts for 4.2 months, ending around March 23. The clearest month is January, when the sky is clear, mostly clear, or partly cloudy 72% of the time on average.
The cloudier part of the year begins around March 24 and lasts for 7.8 months, ending around November 16. The cloudiest month is May, when it is overcast or mostly cloudy 54% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 72 | 71 | 62 | 52 | 46 | 48 | 52 | 48 | 51 | 51 | 55 | 61 |
| Cloudier (%) | 28 | 29 | 38 | 48 | 54 | 52 | 48 | 52 | 49 | 49 | 45 | 39 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 72 | 28 |
| Feb | 71 | 29 |
| Mar | 62 | 38 |
| Apr | 52 | 48 |
| May | 46 | 54 |
| Jun | 48 | 52 |
| Jul | 52 | 48 |
| Aug | 48 | 52 |
| Sep | 51 | 49 |
| Oct | 51 | 49 |
| Nov | 55 | 45 |
| Dec | 61 | 39 |
Daylight, sunrise and sunset
Hours of daylight through the year, with sunrise and sunset times.
The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around December 17, brings about 14 h 24 min of light; the shortest, around June 17, only 9 h 36 min — a swing of roughly 4 h 48 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 14.1 | 13.3 | 12.3 | 11.1 | 10.2 | 9.7 | 9.9 | 10.7 | 11.8 | 12.9 | 13.8 | 14.3 |
| Sunrise (AM) | 6:20 | 6:50 | 7:16 | 7:41 | 8:06 | 8:25 | 8:25 | 7:59 | 7:15 | 6:33 | 6:04 | 6:00 |
| Sunset (PM) | 8:27 | 8:09 | 7:32 | 6:48 | 6:16 | 6:04 | 6:16 | 6:39 | 7:02 | 7:27 | 7:56 | 8:21 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 14.1 | 6:20 | 8:27 |
| Feb | 13.3 | 6:50 | 8:09 |
| Mar | 12.3 | 7:16 | 7:32 |
| Apr | 11.1 | 7:41 | 6:48 |
| May | 10.2 | 8:06 | 6:16 |
| Jun | 9.7 | 8:25 | 6:04 |
| Jul | 9.9 | 8:25 | 6:16 |
| Aug | 10.7 | 7:59 | 6:39 |
| Sep | 11.8 | 7:15 | 7:02 |
| Oct | 12.9 | 6:33 | 7:27 |
| Nov | 13.8 | 6:04 | 7:56 |
| Dec | 14.3 | 6:00 | 8:21 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Mount Barker averages about 12 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 6 and 18 days.
The sunnier stretch runs 4.4 months, from around Nov 13 to Mar 25. The sunniest month is January, with roughly 18 sunny days (bright).
The greyest month is June, down near 7 sunny days — about 59% fewer than the January peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 18 | 16 | 15 | 11 | 8 | 7 | 8 | 8 | 9 | 11 | 12 | 14 |
| Sky | Bright | Bright | Mixed | Mixed | Gloomy | Gloomy | Mixed | Mixed | Mixed | Mixed | Mixed | Mixed |
| Sunny days | Sky | |
|---|---|---|
| Jan | 18 | Bright |
| Feb | 16 | Bright |
| Mar | 15 | Mixed |
| Apr | 11 | Mixed |
| May | 8 | Gloomy |
| Jun | 7 | Gloomy |
| Jul | 8 | Mixed |
| Aug | 8 | Mixed |
| Sep | 9 | Mixed |
| Oct | 11 | Mixed |
| Nov | 12 | Mixed |
| Dec | 14 | Mixed |
Humidity comfort
Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.
Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.
In Mount Barker, the air stays dry or comfortable essentially all year. Even in February, the muggiest month, it feels humid or worse only about 6% of the time — humidity is not something you need to plan around here.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 82 | 81 | 86 | 94 | 98 | 100 | 100 | 100 | 100 | 98 | 93 | 89 |
| Comfortable (%) | 13 | 14 | 12 | 5 | 2 | 0 | 0 | 0 | 0 | 2 | 6 | 9 |
| Humid (%) | 3 | 5 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
| Muggy (%) | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| Jan | 82 | 13 | 3 | 2 |
| Feb | 81 | 14 | 5 | 1 |
| Mar | 86 | 12 | 2 | 0 |
| Apr | 94 | 5 | 1 | 0 |
| May | 98 | 2 | 0 | 0 |
| Jun | 100 | 0 | 0 | 0 |
| Jul | 100 | 0 | 0 | 0 |
| Aug | 100 | 0 | 0 | 0 |
| Sep | 100 | 0 | 0 | 0 |
| Oct | 98 | 2 | 0 | 0 |
| Nov | 93 | 6 | 1 | 0 |
| Dec | 89 | 9 | 2 | 0 |
Wind
Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.
This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.
Across the year, average wind speed in Mount Barker is typically light breeze, near 13 km/h, and varies little with the seasons.
The windier part of the year lasts 7.0 months, from around Jun 15 to Jan 13. The windiest month is August, averaging about 14 km/h (light breeze).
The calmer part of the year runs from around Jan 14 to Jun 14, with April the calmest month at about 11 km/h.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 13 | 12 | 12 | 11 | 11 | 13 | 14 | 14 | 14 | 14 | 13 | 13 |
| Feels | light breeze | light breeze | calm | calm | calm | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 13 | light breeze |
| Feb | 12 | light breeze |
| Mar | 12 | calm |
| Apr | 11 | calm |
| May | 11 | calm |
| Jun | 13 | light breeze |
| Jul | 14 | light breeze |
| Aug | 14 | light breeze |
| Sep | 14 | light breeze |
| Oct | 14 | light breeze |
| Nov | 13 | light breeze |
| Dec | 13 | light breeze |
Hazard calendar for Mount Barker
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
Mount Barker sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Best time to visit Mount Barker
To characterize how pleasant the weather is in Mount Barker throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around mid January, Mount Barker is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.
Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.
The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Mount Barker for general outdoor tourist activities is from mid October to late April, with a peak score in the second week of March.
The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Travel score (0–10) | 7.8 | 8.0 | 8.1 | 7.2 | 5.5 | 4.1 | 3.7 | 4.2 | 5.5 | 6.8 | 7.5 | 7.8 |
| Rating | ideal | ideal | ideal | good | good | fair | fair | fair | fair | good | ideal | ideal |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 7.8 | ideal |
| Feb | 8.0 | ideal |
| Mar | 8.1 | ideal |
| Apr | 7.2 | good |
| May | 5.5 | good |
| Jun | 4.1 | fair |
| Jul | 3.7 | fair |
| Aug | 4.2 | fair |
| Sep | 5.5 | fair |
| Oct | 6.8 | good |
| Nov | 7.5 | ideal |
| Dec | 7.8 | ideal |
The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Mount Barker for hot-weather activities is from late November to late March, with a peak score in the third week of January.
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
What to pack for Mount Barker, by month
Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.
For a warm-season trip around January (highs near 27°C), the essentials are light clothes and sun protection. In the cold season around July (highs near 13°C), pack a warm layer and rain gear.
In January, Mount Barker sees daytime highs around 27°C and nights near 14°C. Pack light clothes and sun protection. About 4 days see rain.
Sea temperature near Mount Barker
Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.
The sea at the nearest coast (about 45 km away) is warmest in February at about 21°C and coldest in August near 13°C.
It's comfortable for a long swim from Jan 3 to Mar 30 — about 2.9 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 21 | 21 | 21 | 19 | 17 | 15 | 14 | 13 | 14 | 15 | 17 | 19 |
| Comfort | Refreshing | Refreshing | Refreshing | Cool | Cool | Cool | Bracing | Bracing | Bracing | Cool | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 21 | Refreshing |
| Feb | 21 | Refreshing |
| Mar | 21 | Refreshing |
| Apr | 19 | Cool |
| May | 17 | Cool |
| Jun | 15 | Cool |
| Jul | 14 | Bracing |
| Aug | 13 | Bracing |
| Sep | 14 | Bracing |
| Oct | 15 | Cool |
| Nov | 17 | Cool |
| Dec | 19 | Cool |
UV index (midday) in Mount Barker by month
Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.
Under clear skies, the midday UV index in Mount Barker peaks around January 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 3 (moderate).
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) | 13 | 11 | 9 | 5 | 3 | 3 | 3 | 4 | 6 | 8 | 10 | 13 |
| Level | Extreme | Extreme | Very high | High | Moderate | Moderate | Moderate | Moderate | High | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 11 | Extreme |
| Mar | 9 | Very high |
| Apr | 5 | High |
| May | 3 | Moderate |
| Jun | 3 | Moderate |
| Jul | 3 | Moderate |
| Aug | 4 | Moderate |
| Sep | 6 | High |
| Oct | 8 | Very high |
| Nov | 10 | Extreme |
| Dec | 13 | Extreme |
Average hourly UV index in Mount Barker
Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.
The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
UV falls off far faster than brightness as the sun drops, so even in January the burn window is concentrated in the middle of the day: about 9 hours a day reach index 3 (protection recommended), and 7 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV ≥ 3 (h/day) | 9 | 8.5 | 7 | 5 | 0 | 0 | 0 | 3.5 | 5.5 | 7 | 8.5 | 9 |
| UV ≥ 6 (h/day) | 7 | 6 | 4.5 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 6 | 7 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 9 | 7 |
| Feb | 8.5 | 6 |
| Mar | 7 | 4.5 |
| Apr | 5 | 0 |
| May | 0 | 0 |
| Jun | 0 | 0 |
| Jul | 0 | 0 |
| Aug | 3.5 | 0 |
| Sep | 5.5 | 0 |
| Oct | 7 | 4 |
| Nov | 8.5 | 6 |
| Dec | 9 | 7 |
Growing season
Mount Barker is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frost-free chance (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Frost nights | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Frost-free chance (%) | Frost nights | |
|---|---|---|
| Jan | 100 | 0 |
| Feb | 100 | 0 |
| Mar | 100 | 0 |
| Apr | 100 | 0 |
| May | 100 | 0 |
| Jun | 100 | 0 |
| Jul | 100 | 0 |
| Aug | 100 | 0 |
| Sep | 100 | 0 |
| Oct | 100 | 0 |
| Nov | 100 | 0 |
| Dec | 100 | 0 |
Growing degree days
Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Mount Barker banks about 1,865 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around January.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 337 | 300 | 266 | 169 | 84 | 15 | 0 | 11 | 65 | 134 | 206 | 278 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 337 |
| Feb | 300 |
| Mar | 266 |
| Apr | 169 |
| May | 84 |
| Jun | 15 |
| Jul | 0 |
| Aug | 11 |
| Sep | 65 |
| Oct | 134 |
| Nov | 206 |
| Dec | 278 |
Solar energy
Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.
Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.
Mount Barker receives about 5.0 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.2 and 8.1 kWh/m².
The brighter stretch of the year lasts 5.9 months, from around Sep 25 to Mar 23. The brightest month is January, averaging about 7.7 kWh/m² (intense).
The dimmest month is June, down near 2.2 kWh/m² — roughly 71% less than the January peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 7.8 | 6.9 | 5.5 | 3.9 | 2.7 | 2.2 | 2.4 | 3.2 | 4.5 | 6.0 | 7.1 | 7.5 |
| Level | Intense | Intense | Bright | Moderate | Moderate | Moderate | Moderate | Moderate | Bright | Bright | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 7.8 | Intense |
| Feb | 6.9 | Intense |
| Mar | 5.5 | Bright |
| Apr | 3.9 | Moderate |
| May | 2.7 | Moderate |
| Jun | 2.2 | Moderate |
| Jul | 2.4 | Moderate |
| Aug | 3.2 | Moderate |
| Sep | 4.5 | Bright |
| Oct | 6.0 | Bright |
| Nov | 7.1 | Intense |
| Dec | 7.5 | Intense |
Where is Mount Barker?
Mount Barker sits at 35.1°S, 138.9°E, 322 m above sea level, in Australia. The nearest listed city is Adelaide Hills, 23 km away.
Topography around Mount Barker
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mount Barker.
Within 3 km, the terrain around Mount Barker has only modest variations in elevation — a maximum elevation change of 154 m around an average of 352 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 551 m; within 80 km, large variations in elevation — a maximum elevation change of 700 m.
The land around Mount Barker is covered by trees (42%), grassland (30%) and artificial surfaces (24%) within 3 km, grassland (59%) and trees (35%) within 16 km, and grassland (33%), water (29%) and cropland (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 Mount Barker (-35.0667°, 138.8667°, elevation 322 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).