McMinnville weather in September

In September, McMinnville sees average daytime highs of 74°F and overnight lows near 51°F, with 1.7 in of rain across 5.6 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 77°F in the first days to 70°F by the end. The sky is clear or mostly clear about 50% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 06 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is McMinnville's 3rd-clearest and 11th-windiest month. For the whole year in context, see McMinnville's year-round climate.

Daytime high
74°
3rd warmest
Overnight low
51°
10th coldest
Rainfall
1.7 in
5.6 wet days
Daylight
12 h 18 min
5:58 AM – 6:16 PM
Cloud cover
41%
3rd clearest
Wind
5 mph
11th windiest
Solar energy
4.54 kWh/m²
Travel score
7.8
out of 10

McMinnville is city in Oregon, USA.

Density
1,237/km²
people per km²
Founded
1856

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 77°F in the first days to 70°F by the end.

A typical September day in McMinnville reaches about 74°F in the afternoon and slips back to 51°F overnight — a 22°F spread between the day's warmth and the night's chill. On most days the high lands between 63°F and 86°F. Set against its neighbours, September runs about 6°F cooler than August and about 12°F warmer than October.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
17753
27753
37753
47753
57753
67653
77653
87653
97653
107552
117552
127552
137452
147452
157452
167451
177351
187351
197351
207351
217250
227250
237250
247150
257150
267149
277049
287049
296949
306948

How September really feels in McMinnville

Once humidity and wind are folded in, September averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
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.

McMinnville weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan46° / 35°7.717.43.390.9
Feb49° / 36°5.714.82.910.11.7
Mar53° / 38°6.417.52.511.62.5
Apr58° / 41°4.715.70.713.23.6
May65° / 46°2.710.5014.65.7
Jun70° / 50°1.76.8015.47.0
Jul79° / 54°0.42.1015.18.3
Aug80° / 55°0.62.8013.98.2
Sep74° / 51°1.75.6012.37.8
Oct62° / 45°4.411.5010.75.1
Nov51° / 39°7.717.319.31.9
Dec45° / 35°9.017.53.48.60.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 37%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17129
27129
37030
47030
56931
66931
76832
86733
96634
106535
116337
126238
136139
146040
156040
166040
175941
185941
195941
206040
216040
226040
236040
246139
256139
266139
276139
286139
296040
305941

Chance of precipitation in September

Any precipitation

McMinnville gets around 1.7 in of rain over 5.6 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 19% and peaks near 25% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
114
214
314
414
514
614
715
816
916
1017
1118
1218
1319
1419
1520
1620
1721
1821
1921
2022
2122
2222
2322
2423
2523
2623
2723
2824
2924
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 90% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
188120
288120
388120
488120
588120
689110
789110
889110
989110
1089110
1188120
1288120
1388120
1488120
1588120
1688120
1789110
1889110
1989110
2090100
2190100
229190
239190
249181
259181
269271
279271
289361
299361
309361

Wind in September

Winds average 5 mph in September.

Across September, daily wind ranges from about 5 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 06 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 90 minutes over September. Sunrise moves from 5:39 AM to 6:15 AM, and sunset from 6:46 PM to 5:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:396:46
213.15:406:44
313.05:426:42
413.05:436:40
512.95:446:38
612.85:456:36
712.85:476:34
812.75:486:32
912.75:496:30
1012.65:506:28
1112.65:526:26
1212.55:536:24
1312.55:546:22
1412.45:556:20
1512.45:576:18
1612.35:586:16
1712.35:596:14
1812.26:006:12
1912.16:026:10
2012.16:036:08
2112.06:046:06
2212.06:056:04
2311.96:076:03
2411.96:086:01
2511.86:095:59
2611.86:105:57
2711.76:125:55
2811.76:135:53
2911.66:145:51
3011.66:155:49

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.54 kWh/m².

For context, solar energy here swings from a low near 1.06 kWh/m² to a high of 6.88 kWh/m² in July across the year — September's 4.54 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.2Bright
35.2Bright
45.1Bright
55.1Bright
65.0Bright
75.0Bright
84.9Bright
94.9Bright
104.8Bright
114.8Bright
124.7Bright
134.6Bright
144.6Bright
154.5Bright
164.5Bright
174.4Bright
184.3Bright
194.3Bright
204.2Bright
214.2Bright
224.1Bright
234.1Bright
244.0Bright
254.0Moderate
263.9Moderate
273.8Moderate
283.8Moderate
293.7Moderate
303.6Moderate
Planning a trip in September

Hazard calendar for McMinnville

In seasonPeak

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

McMinnville's rainy season runs October–April, when most of the year's rain falls.

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

Is September a good time to visit McMinnville?

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

7.8
Sightseeing
3rd-best month of the year
5.9
Beach & pool
3rd-best month of the year

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

What to pack for McMinnville in September

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

In September, McMinnville sees daytime highs around 74°F and nights near 51°F. Worth packing: light clothes and sun protection. About 6 days see rain.

light clothessun protection

Sea temperature near McMinnville in September

The nearest coast averages about 58°F 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 44 mi away) is warmest in August at about 59°F and coldest in February near 49°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

50°55°60°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°F)Comfort
Jan50Bracing
Feb49Bracing
Mar50Bracing
Apr51Bracing
May54Bracing
Jun57Bracing
Jul58Bracing
Aug59Bracing
Sep58Bracing
Oct55Bracing
Nov53Bracing
Dec50Bracing

UV index in McMinnville 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 McMinnville peaks around July 17 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateVery highVery highHighModerateLowJul 17UV 8Dec 17UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5High
May8Very high
Jun7High
Jul8Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in McMinnville 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 McMinnville is worst in September — around 34 µg/m³ PM2.5 (moderate), about 5.1× the cleanest month (January, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1531 µg/m³Jan 167 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar11Good
Apr11Good
May9Good
Jun8Good
Jul7Good
Aug14Moderate
Sep34Moderate
Oct11Good
Nov10Good
Dec8Good
Location & terrain

Where is McMinnville?

McMinnville sits at 45.2°N, 123.2°W, 154 ft above sea level, in United States. The nearest listed city is Newberg, 12 mi away.

Topography around McMinnville

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of McMinnville.

Within 2 miles, the terrain around McMinnville has only modest variations in elevation — a maximum elevation change of 269 ft around an average of 151 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,267 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,803 ft.

The land around McMinnville is covered by trees (38%) and artificial surfaces (28%) within 2 miles, trees (48%), cropland (27%) and grassland (21%) within 10 miles, and trees (66%) within 50 miles.

2 miles
269 ft
10 miles
2,267 ft
50 miles
4,803 ft
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Newberg 12 mi · Woodburn 17 mi · Keizer 17 mi · Hayesville 19 mi · Salem 20 mi · Sherwood 20 mi · Dallas 21 mi · Wilsonville 22 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

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 McMinnville (45.2101°, -123.1987°, elevation 154 ft), 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. 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. 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).