Gawler weather in September

In September, Gawler sees average daytime highs of 18°C and overnight lows near 8°C, with 49 mm of rain across 8.2 wet days and about 11.8 hours of daylight. It is the 9th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 17°C in the first days to 19°C by the end. The sky is clear or mostly clear about 36% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 12 min at the start of September to 12 h 18 min by month's end. Set against the rest of the year, September is Gawler's 9th-clearest and 1st-windiest month. For the whole year in context, see Gawler's year-round climate.

Daytime high
18°
9th warmest
Overnight low
4th coldest
Rainfall
49 mm
8.2 wet days
Daylight
11 h 48 min
7:16 AM – 7:03 PM
Cloud cover
52%
9th clearest
Wind
14 km/h
1st windiest
Solar energy
4.64 kWh/m²
Travel score
6.2
out of 10

Gawler is city in South Australia.

Founded
1836

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 17°C in the first days to 19°C by the end.

A typical September day in Gawler reaches about 18°C in the afternoon and slips back to 8°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 24°C. Set against its neighbours, September runs about 3°C warmer than August and about 3°C cooler than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
1177
2177
3177
4177
5177
6177
7177
8177
9177
10177
11178
12188
13188
14188
15188
16188
17188
18188
19188
20188
21188
22198
23198
24198
25198
26198
27198
28198
29198
30208

Gawler weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 16°213.114.16.5
Feb29° / 16°162.313.36.9
Mar26° / 14°152.812.38.1
Apr22° / 11°294.511.27.7
May18° / 35710.26.3
Jun15° / 448.29.74.8
Jul14° / 459.59.94.3
Aug15° / 489.410.74.8
Sep18° / 498.211.86.2
Oct21° / 335.612.97.3
Nov25° / 12°28513.87.8
Dec27° / 14°274.414.37.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 21% of September, with mostly cloudy or overcast conditions the remaining 43%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15743
25743
35644
45644
55644
65743
75644
85644
95644
105644
115644
125644
135644
145644
155644
165743
175743
185743
195743
205842
215842
225941
235941
245842
255941
265941
275941
285842
295941
305941

Chance of precipitation in September

Any precipitation

Gawler gets around 49 mm of rain over 8.2 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 27% and peaks near 29% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
129
229
329
429
529
629
729
829
929
1029
1128
1228
1327
1427
1527
1626
1726
1826
1925
2025
2125
2225
2325
2425
2525
2625
2724
2824
2924
3024

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
16991
17991
18991
19991
20991
21991
22991
23991
24982
25982
26982
27982
28982
29982
30982

Wind in September

Winds average 14 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 14 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 12 min at the start of September to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over September. Sunrise moves from 7:38 AM to 6:55 AM, and sunset from 6:52 PM to 7:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.27:386:52
211.37:366:53
311.37:356:53
411.37:336:54
511.47:326:55
611.47:306:56
711.57:296:56
811.57:286:57
911.57:266:58
1011.67:256:59
1111.67:236:59
1211.67:227:00
1311.77:207:01
1411.77:197:01
1511.77:177:02
1611.87:167:03
1711.87:147:04
1811.97:137:04
1911.97:117:05
2011.97:107:06
2112.07:087:07
2212.07:077:07
2312.07:057:08
2412.17:047:09
2512.17:027:10
2612.27:017:10
2712.26:597:11
2812.26:587:12
2912.36:577:13
3012.36:557:13

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.64 kWh/m².

For context, solar energy here swings from a low near 2.29 kWh/m² to a high of 8 kWh/m² in January across the year — September's 4.64 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.0Moderate
24.0Bright
34.0Bright
44.1Bright
54.1Bright
64.2Bright
74.2Bright
84.3Bright
94.3Bright
104.4Bright
114.4Bright
124.5Bright
134.5Bright
144.6Bright
154.6Bright
164.7Bright
174.7Bright
184.8Bright
194.8Bright
204.9Bright
214.9Bright
225.0Bright
235.0Bright
245.1Bright
255.1Bright
265.2Bright
275.2Bright
285.3Bright
295.3Bright
305.4Bright
Planning a trip in September

Hazard calendar for Gawler

In seasonPeak

None of Gawler's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Gawler sits in the South Indian Ocean cyclone belt; the season peaks January–March.

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

Is September a good time to visit Gawler?

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

6.2
Sightseeing
9th-best month of the year
2.1
Beach & pool
9th-best month of the year

September is a reasonable time to visit Gawler for sightseeing.

What to pack for Gawler in September

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

In September, Gawler sees daytime highs around 18°C and nights near 8°C. Worth packing: a warm layer, rain gear and sun protection. About 8 days see rain.

a warm layerrain gearsun protection

Sea temperature near Gawler in September

The nearest coast averages about 14°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 34 km away) is warmest in February at about 22°C and coldest in August near 13°C.

It's comfortable for a long swim from Dec 17 to Apr 4 — about 3.6 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan22Refreshing
Feb22Refreshing
Mar21Refreshing
Apr19Cool
May17Cool
Jun15Bracing
Jul13Bracing
Aug13Bracing
Sep14Bracing
Oct16Cool
Nov18Cool
Dec20Refreshing

UV index in Gawler in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Gawler peaks around January 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 10UV 13Jun 18UV 3
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar9Very high
Apr5High
May3Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov10Extreme
Dec13Extreme
Location & terrain

Where is Gawler?

Gawler sits at 34.6°S, 138.7°E, 57 m above sea level, in Australia. The nearest listed city is Paralowie, 21 km away.

Topography around Gawler

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

Within 3 km, the terrain around Gawler has only modest variations in elevation — a maximum elevation change of 131 m around an average of 75 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 374 m; within 80 km, large variations in elevation — a maximum elevation change of 700 m.

The land around Gawler is covered by artificial surfaces (35%) and grassland (32%) within 3 km, cropland (46%) and grassland (30%) within 16 km, and cropland (33%), grassland (30%) and water (21%) within 80 km.

3 km
131 m
16 km
374 m
80 km
700 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Paralowie 21 km · Parafield Gardens 24 km · Adelaide Hills 35 km · Adelaide city centre 39 km · Adelaide 39 km · Mount Barker 53 km · Morphett Vale 63 km · Whyalla 206 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
none 38%Roman Catholic 20%Protestant 18%other Christian 4%

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 Gawler (-34.6025°, 138.749°, elevation 57 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).