Oakdale weather in September

In September, Oakdale sees average daytime highs of 87°F and overnight lows near 60°F, with 0.1 in of rain across 0.6 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 90°F in the first days to 83°F by the end. The sky is clear or mostly clear about 87% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Oakdale's 3rd-clearest and 6th-windiest month. For the whole year in context, see Oakdale's year-round climate.

Daytime high
87°
4th warmest
Overnight low
60°
9th coldest
Rainfall
0.1 in
0.6 wet days
Daylight
12 h 12 min
5:51 AM – 6:05 PM
Cloud cover
13%
3rd clearest
Wind
5 mph
6th windiest
Solar energy
6.11 kWh/m²
Travel score
6.6
out of 10

Oakdale is city in Stanislaus County, California, United States.

Density
1,410/km²
people per km²
Founded
1906

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 90°F in the first days to 83°F by the end.

A typical September day in Oakdale reaches about 87°F in the afternoon and slips back to 60°F overnight — a 26°F spread between the day's warmth and the night's chill. On most days the high lands between 78°F and 95°F. Set against its neighbours, September runs about 5°F cooler than August and about 9°F warmer than October.

60°80°100°151015202530
Avg high (°F)Avg low (°F)
19063
29063
39063
48963
58963
68962
78962
88862
98862
108862
118861
128761
138761
148761
158760
168660
178660
188660
198660
208659
218559
228559
238559
248559
258458
268458
278458
288358
298358
308357

How September really feels in Oakdale

Once humidity and wind are folded in, September averages 3 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
3
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Oakdale weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan58° / 41°4.48.79.74.4
Feb61° / 44°4.1910.55.2
Mar66° / 46°3.68.111.76.5
Apr72° / 50°1.85.212.97.6
May80° / 55°1.13.4147.9
Jun88° / 61°0.20.914.65.9
Jul92° / 65°0.00.114.34.5
Aug91° / 64°0.00.113.54.9
Sep87° / 60°0.10.612.36.6
Oct77° / 53°1.12.6118.5
Nov65° / 46°2.25.7106.7
Dec57° / 41°4.08.59.44.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 87% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 7% of September, with mostly cloudy or overcast conditions the remaining 6%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1964
2964
3964
4964
5964
6955
7955
8955
9955
10955
11955
12955
13946
14946
15946
16946
17946
18946
19946
20928
21928
22928
23928
24919
25919
26919
27919
28919
29919
309010

Chance of precipitation in September

Any precipitation

Oakdale gets around 0.1 in of rain over 0.6 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 2% and peaks near 4% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
122
132
142
152
162
172
182
192
203
213
223
233
243
253
263
274
284
294
304

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 86% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1791821
2801721
3811621
4811621
5821521
6821521
7831421
8831421
9841321
10841321
11851221
12851221
13871210
14871210
15871210
16871210
17871210
18871210
19871210
20871210
21881200
22891100
23891100
24891100
25891100
26891100
27891100
28891100
29901000
30901000

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 12 h 54 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 72 minutes over September. Sunrise moves from 5:37 AM to 6:03 AM, and sunset from 6:29 PM to 5:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:376:29
212.85:386:27
312.85:396:26
412.75:406:24
512.75:416:23
612.75:426:21
712.65:436:19
812.65:446:18
912.55:446:16
1012.55:456:15
1112.45:466:13
1212.45:476:11
1312.45:486:10
1412.35:496:08
1512.35:506:07
1612.25:516:05
1712.25:516:03
1812.25:526:02
1912.15:536:00
2012.15:545:58
2112.05:555:57
2212.05:565:55
2311.95:575:54
2411.95:585:52
2511.95:585:50
2611.85:595:49
2711.86:005:47
2811.76:015:46
2911.76:025:44
3011.76:035:42

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.11 kWh/m².

For context, solar energy here swings from a low near 2.3 kWh/m² to a high of 8.24 kWh/m² in June across the year — September's 6.11 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.8Intense
26.8Intense
36.7Intense
46.7Intense
56.7Intense
66.6Intense
76.5Intense
86.5Intense
96.5Intense
106.4Intense
116.3Intense
126.3Intense
136.3Intense
146.2Intense
156.1Intense
166.1Intense
176.0Intense
186.0Bright
195.9Bright
205.9Bright
215.8Bright
225.8Bright
235.7Bright
245.7Bright
255.6Bright
265.5Bright
275.5Bright
285.4Bright
295.4Bright
305.3Bright
Planning a trip in September

Hazard calendar for Oakdale

In seasonPeak

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

Oakdale's rainy season runs November–March, 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 Oakdale?

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

6.6
Sightseeing
5th-best month of the year
9.0
Beach & pool
1st-best month of the year

September is a reasonable time to visit Oakdale for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Oakdale in September

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

In September, Oakdale sees daytime highs around 87°F and nights near 60°F. Pack light clothes and sun protection.

light clothessun protection

UV index in Oakdale in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Oakdale peaks around June 20 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 2 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highHighModerateJun 20UV 10Dec 14UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr6High
May8Very high
Jun10Extreme
Jul10Very high
Aug10Very high
Sep7High
Oct5Moderate
Nov2Moderate
Dec2Moderate

Air quality in Oakdale 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 Oakdale is worst in August — around 29 µg/m³ PM2.5 (moderate), about 3.6× the cleanest month (June, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateAug 1928 µg/m³Jun 118 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb14Moderate
Mar14Moderate
Apr11Good
May9Good
Jun8Good
Jul15Moderate
Aug29Moderate
Sep22Moderate
Oct17Moderate
Nov15Moderate
Dec12Moderate
Location & terrain

Where is Oakdale?

Oakdale sits at 37.8°N, 120.8°W, 157 ft above sea level, in United States. The nearest listed city is Riverbank, 5.0 mi away.

Topography around Oakdale

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

Within 2 miles, the terrain around Oakdale has only modest variations in elevation — a maximum elevation change of 151 ft around an average of 171 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 518 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 6,355 ft.

The land around Oakdale is covered by trees (38%) and artificial surfaces (32%) within 2 miles, trees (43%) and grassland (31%) within 10 miles, and grassland (41%) and trees (34%) within 50 miles.

2 miles
151 ft
10 miles
518 ft
50 miles
6,355 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Riverbank 5.0 mi · Modesto 12 mi · Ceres 13 mi · Ripon 16 mi · Turlock 19 mi · Manteca 21 mi · Lathrop 24 mi · Patterson 25 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 Oakdale (37.7666°, -120.8471°, elevation 157 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. 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).