Satu Mare weather in September

In September, Satu Mare sees average daytime highs of 23°C and overnight lows near 12°C, with 65 mm of rain across 8.9 wet days and about 12.4 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 35% 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 Satu Mare's 3rd-clearest and 8th-windiest month. For the whole year in context, see Satu Mare's year-round climate.

Daytime high
23°
4th warmest
Overnight low
12°
9th coldest
Rainfall
65 mm
8.9 wet days
Daylight
12 h 18 min
6:13 AM – 6:33 PM
Cloud cover
56%
3rd clearest
Wind
10 km/h
8th windiest
Solar energy
3.67 kWh/m²
Travel score
6.9
out of 10

Satu Mare is city in Satu Mare County, Romania.

Air quality
Elevated
PM2.5 15.9 µg/m³ · 2013
Density
748/km²
people per km²
Founded
1200

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 Satu Mare 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)
12614
22614
32614
42514
52514
62513
72513
82513
92413
102413
112413
122413
132412
142312
152312
162312
172312
182312
192212
202211
212211
222211
232211
242111
252111
262111
272111
282110
292010
302010

How September really feels in Satu Mare

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.

Satu Mare 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 / -3°4610.15.28.60.0
Feb / -2°489.94.59.90.3
Mar11° / 51101.511.62.8
Apr18° / 549.70.313.45.6
May23° / 12°7112.2014.96.5
Jun26° / 15°8512.9015.76.2
Jul28° / 17°8512.4015.45.8
Aug28° / 16°629.7014.16.1
Sep23° / 12°658.9012.46.9
Oct17° / 6390.110.65.4
Nov10° / 539.61.39.12.2
Dec / -2°59103.78.30.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% 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 49%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15842
25842
35743
45545
55545
65446
75446
85347
95149
105149
115050
125050
134951
145050
155050
164951
174951
184951
194951
204951
214852
224852
234951
244852
254852
264951
275050
285050
294951
304951

Chance of precipitation in September

Any precipitation

Satu Mare gets around 65 mm of rain over 8.9 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 30% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
129
229
329
429
529
629
729
829
929
1030
1130
1230
1331
1431
1531
1631
1732
1832
1932
2032
2131
2231
2331
2430
2530
2629
2729
2828
2928
3028

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 74% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
1602713
2612712
3642610
465269
566268
668257
768257
869256
970255
1071245
1172244
1272244
1374233
1474233
1575223
1676213
1777212
1878202
1979192
2079192
2180182
2281172
2381172
2482162
2582162
2682162
2782162
2883152
2983152
3083152

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

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 5:52 AM to 6:33 AM, and sunset from 7:05 PM to 6:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.25:527:05
213.25:537:03
313.15:547:01
413.05:566:59
513.05:576:57
612.95:596:54
712.96:006:52
812.86:016:50
912.86:036:48
1012.76:046:46
1112.66:066:44
1212.66:076:42
1312.56:086:40
1412.56:106:37
1512.46:116:35
1612.36:136:33
1712.36:146:31
1812.26:156:29
1912.26:176:27
2012.16:186:25
2112.06:206:22
2212.06:216:20
2311.96:236:18
2411.96:246:16
2511.86:256:14
2611.76:276:12
2711.76:286:10
2811.66:306:07
2911.66:316:05
3011.56:336:03

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.67 kWh/m².

For context, solar energy here swings from a low near 0.88 kWh/m² to a high of 5.95 kWh/m² in June across the year — September's 3.67 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.4Bright
34.3Bright
44.3Bright
54.2Bright
64.2Bright
74.1Bright
84.1Bright
94.0Bright
104.0Moderate
113.9Moderate
123.9Moderate
133.8Moderate
143.8Moderate
153.7Moderate
163.6Moderate
173.6Moderate
183.5Moderate
193.5Moderate
203.4Moderate
213.4Moderate
223.3Moderate
233.3Moderate
243.2Moderate
253.2Moderate
263.1Moderate
273.1Moderate
283.0Moderate
293.0Moderate
303.0Moderate
Planning a trip in September

Is September a good time to visit Satu Mare?

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

6.9
Sightseeing
1st-best month of the year
5.3
Beach & pool
4th-best month of the year

September is a reasonable time to visit Satu Mare for sightseeing.

What to pack for Satu Mare in September

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

In September, Satu Mare sees daytime highs around 23°C and nights near 12°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

UV index in Satu Mare 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 Satu Mare peaks around July 13 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 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 13UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr6High
May6High
Jun7Very high
Jul8Very high
Aug7High
Sep5Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Satu Mare 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 Satu Mare is worst in April — around 20 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 11 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Satu Mare's WHO annual average of 15.9 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1120 µg/m³Dec 1411 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb15Moderate
Mar19Moderate
Apr20Moderate
May18Moderate
Jun19Moderate
Jul18Moderate
Aug17Moderate
Sep14Moderate
Oct12Moderate
Nov13Moderate
Dec11Good
Location & terrain

Where is Satu Mare?

Satu Mare sits at 47.8°N, 22.9°E, 124 m above sea level, in Romania. The nearest listed city is Carei, 32 km away.

MátészalkaBerehoveKhustBaia MareŞimleu SilvanieiBaia Sprie

Topography around Satu Mare

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

Within 3 km, the terrain around Satu Mare has only modest variations in elevation — a maximum elevation change of 22 m around an average of 125 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 69 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,316 m.

The land around Satu Mare is covered by cropland (37%) and artificial surfaces (37%) within 3 km, cropland (65%) within 16 km, and trees (42%), cropland (33%) and grassland (23%) within 80 km.

3 km
22 m
16 km
69 m
80 km
1,316 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Carei 32 km · Vynohradiv 40 km · Mátészalka 44 km · Berehove 48 km · Khust 53 km · Baia Mare 55 km · Şimleu Silvaniei 63 km · Baia Sprie 64 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 Satu Mare (47.7993°, 22.8625°, elevation 124 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).