Arad weather in September

In September, Arad sees average daytime highs of 23°C and overnight lows near 12°C, with 58 mm of rain across 8.3 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 21°C by the end. The sky is clear or mostly clear about 40% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 12 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Arad's 3rd-clearest and 9th-windiest month. For the whole year in context, see Arad's year-round climate.

Daytime high
23°
4th warmest
Overnight low
12°
9th coldest
Rainfall
58 mm
8.3 wet days
Daylight
12 h 18 min
6:19 AM – 6:39 PM
Cloud cover
52%
3rd clearest
Wind
9 km/h
9th windiest
Solar energy
3.87 kWh/m²
Travel score
7.1
out of 10

Arad is locality in Arad County, Romania.

Air quality
Elevated
PM2.5 17.9 µg/m³ · 2018

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 26°C in the first days to 21°C by the end.

A typical September day in Arad reaches about 23°C in the afternoon and slips back to 12°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 29°C. Set against its neighbours, September runs about 5°C cooler than August and about 6°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12615
22614
32614
42514
52514
62514
72514
82513
92413
102413
112413
122413
132413
142313
152313
162312
172312
182312
192312
202212
212212
222212
232211
242211
252111
262111
272111
282111
292111
302110

How September really feels in Arad

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Arad weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°408.43.18.80.0
Feb / -1°418.63.4100.5
Mar12° / 479.21.511.63.1
Apr18° / 5810.20.213.35.6
May22° / 12°6911.8014.76.5
Jun26° / 15°7811.4015.56.5
Jul28° / 17°659.6015.26.3
Aug28° / 17°587.60146.4
Sep23° / 12°588.3012.37.1
Oct17° / 508010.75.7
Nov10° / 518.50.99.22.5
Dec / -1°509.32.88.50.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 44%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16436
26337
36337
46238
56139
66139
76139
86040
95941
105941
115842
125743
135743
145743
155644
165545
175545
185446
195347
205347
215248
225248
235149
245149
255149
265050
275050
285050
295050
305050

Chance of precipitation in September

Any precipitation

Arad gets around 58 mm of rain over 8.3 wet days in September. 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 28% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
127
227
327
427
527
627
727
827
927
1027
1127
1228
1328
1428
1528
1628
1728
1828
1928
2028
2128
2228
2328
2428
2527
2627
2727
2826
2926
3025

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 67% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15130181
25429161
35728150
45828140
56027130
66127120
76227110
86327100
9642790
10652780
11642880
12652870
13652870
14662770
15672760
16672760
17682660
18682660
19702550
20702550
21712450
22732340
23742240
24752140
25752140
26772030
27772030
28781930
29781930
30801820

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 12 min at the start of September to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 102 minutes over September. Sunrise moves from 6:00 AM to 6:38 AM, and sunset from 7:09 PM to 6:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.26:007:09
213.16:017:07
313.06:037:05
413.06:047:03
512.96:057:01
612.96:066:59
712.86:086:57
812.86:096:55
912.76:106:53
1012.76:126:51
1112.66:136:49
1212.56:146:47
1312.56:156:45
1412.46:176:43
1512.46:186:41
1612.36:196:39
1712.36:216:37
1812.26:226:35
1912.26:236:33
2012.16:256:31
2112.06:266:28
2212.06:276:26
2311.96:296:24
2411.96:306:22
2511.86:316:20
2611.86:336:18
2711.76:346:16
2811.66:356:14
2911.66:376:12
3011.56:386:10

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.87 kWh/m².

For context, solar energy here swings from a low near 1.04 kWh/m² to a high of 6.07 kWh/m² in June across the year — September's 3.87 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.6Bright
34.5Bright
44.5Bright
54.4Bright
64.4Bright
74.3Bright
84.3Bright
94.2Bright
104.2Bright
114.1Bright
124.1Bright
134.0Bright
144.0Moderate
153.9Moderate
163.8Moderate
173.8Moderate
183.7Moderate
193.7Moderate
203.6Moderate
213.6Moderate
223.5Moderate
233.5Moderate
243.4Moderate
253.4Moderate
263.4Moderate
273.3Moderate
283.3Moderate
293.2Moderate
303.2Moderate
Planning a trip in September

Is September a good time to visit Arad?

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

7.1
Sightseeing
1st-best month of the year
5.5
Beach & pool
4th-best month of the year

September is one of the better times to visit Arad for general sightseeing.

What to pack for Arad in September

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

In September, Arad sees daytime highs around 23°C and nights near 12°C. Worth packing: light clothes and rain gear. About 8 days see rain.

light clothesrain gear

UV index in Arad in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Arad peaks around July 12 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 12UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr7Very high
May6High
Jun8Very high
Jul8Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Arad in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Arad is worst in June — around 23 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 13 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Arad's WHO annual average of 17.9 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 1523 µg/m³Dec 1413 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb16Moderate
Mar21Moderate
Apr22Moderate
May21Moderate
Jun23Moderate
Jul20Moderate
Aug19Moderate
Sep15Moderate
Oct15Moderate
Nov14Moderate
Dec13Moderate
Location & terrain

Where is Arad?

Arad sits at 46.2°N, 21.3°E, 109 m above sea level, in Romania. The nearest listed city is Timișoara, 48 km away.

TimișoaraGyulaBékéscsabaMakóOrosházaBékésLugojSalonta

Topography around Arad

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

Within 3 km, the terrain around Arad has only modest variations in elevation — a maximum elevation change of 26 m around an average of 110 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 77 m; within 80 km, large variations in elevation — a maximum elevation change of 1,037 m.

The land around Arad is covered by artificial surfaces (58%) within 3 km, cropland (73%) within 16 km, and cropland (62%) within 80 km.

3 km
26 m
16 km
77 m
80 km
1,037 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Timișoara 48 km · Gyula 52 km · Békéscsaba 58 km · Makó 64 km · Orosháza 66 km · Békés 66 km · Lugoj 71 km · Salonta 73 km

Romania travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 44% of US
price level, 2025
GDP per capita
$22,538
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
82%
of population, 2024
Homicide rate
1.1
per 100k, 2023
Road deaths
10.3
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 605
Religion
Romanian Orthodox 85%other 5%Roman Catholic 5%Reformed 3%

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 Arad (46.1833°, 21.3167°, elevation 109 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).