Woodland weather in September

In September, Woodland sees average daytime highs of 89°F and overnight lows near 60°F, with 0.1 in of rain across 0.5 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 92°F in the first days to 86°F by the end. The sky is clear or mostly clear about 86% 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 36 min by month's end. Set against the rest of the year, September is Woodland's 3rd-clearest and 12th-windiest month. For the whole year in context, see Woodland's year-round climate.

Daytime high
89°
4th warmest
Overnight low
60°
9th coldest
Rainfall
0.1 in
0.5 wet days
Daylight
12 h 12 min
5:54 AM – 6:09 PM
Cloud cover
14%
3rd clearest
Wind
4 mph
12th windiest
Solar energy
5.98 kWh/m²
Travel score
5.4
out of 10

Woodland is seat of Yolo County, California, United States.

Density
1,478/km²
people per km²
Founded
1871

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 92°F in the first days to 86°F by the end.

A typical September day in Woodland reaches about 89°F in the afternoon and slips back to 60°F overnight — a 30°F spread between the day's warmth and the night's chill. On most days the high lands between 80°F and 99°F. Set against its neighbours, September runs about 4°F cooler than August and about 10°F warmer than October.

60°80°100°151015202530
Avg high (°F)Avg low (°F)
19362
29261
39261
49261
59261
69261
79261
89161
99160
109160
119160
129060
139060
149060
159060
168960
178959
188959
198959
208959
218859
228859
238859
248858
258758
268758
278758
288658
298658
308657

How September really feels in Woodland

Once humidity and wind are folded in, September averages 15 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
15
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.

Woodland 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° / 42°4.49.49.64.4
Feb63° / 44°4.19.110.55.5
Mar68° / 47°3.38.811.76.5
Apr74° / 51°1.55.3137.6
May83° / 57°0.93.714.17.1
Jun91° / 62°0.21.114.74.6
Jul95° / 63°0.00.114.43.4
Aug94° / 62°0.00.113.53.9
Sep89° / 60°0.10.512.35.4
Oct80° / 54°1.13.2118.0
Nov66° / 46°2.26.29.96.7
Dec58° / 42°4.19.59.34.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 86% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 6% of September, with mostly cloudy or overcast conditions the remaining 8%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1955
2955
3955
4955
5955
6955
7955
8946
9946
10946
11946
12937
13937
14928
15928
16919
17919
18919
19919
20919
21919
22919
239010
249010
259010
269010
278911
288911
298911
309010

Chance of precipitation in September

Any precipitation

Woodland gets around 0.1 in of rain over 0.5 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 5% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
121
132
142
152
162
172
182
193
203
213
223
233
243
254
264
274
285
295
305

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 85% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
179192
279192
380182
481172
581172
682162
782162
882162
983152
1083152
1183152
1284142
1385141
1485141
1585141
1685141
1785141
1885141
1986131
2086131
2187130
2288120
2388120
2489110
2589110
2689110
2789110
2890100
2990100
3090100

Wind in September

Winds average 4 mph in September, the calmest month.

Across September, daily wind ranges from about 4 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
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
285calm
295calm
305calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 54 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 78 minutes over September. Sunrise moves from 5:40 AM to 6:07 AM, and sunset from 6:33 PM to 5:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:406:33
212.85:416:32
312.85:426:30
412.85:436:29
512.75:446:27
612.75:456:25
712.65:466:24
812.65:476:22
912.55:486:20
1012.55:496:19
1112.55:496:17
1212.45:506:15
1312.45:516:14
1412.35:526:12
1512.35:536:10
1612.25:546:09
1712.25:556:07
1812.25:566:06
1912.15:576:04
2012.15:586:02
2112.05:596:01
2212.06:005:59
2311.96:005:57
2411.96:015:56
2511.96:025:54
2611.86:035:52
2711.86:045:51
2811.76:055:49
2911.76:065:47
3011.66:075:46

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.98 kWh/m².

For context, solar energy here swings from a low near 2.04 kWh/m² to a high of 8.19 kWh/m² in July across the year — September's 5.98 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.7Intense
26.7Intense
36.6Intense
46.6Intense
56.5Intense
66.5Intense
76.4Intense
86.4Intense
96.3Intense
106.3Intense
116.2Intense
126.2Intense
136.1Intense
146.0Intense
156.0Intense
165.9Bright
175.9Bright
185.8Bright
195.8Bright
205.7Bright
215.7Bright
225.6Bright
235.6Bright
245.5Bright
255.5Bright
265.4Bright
275.3Bright
285.3Bright
295.2Bright
305.2Bright
Planning a trip in September

Hazard calendar for Woodland

In seasonPeak

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

Woodland'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 Woodland?

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

5.4
Sightseeing
7th-best month of the year
8.5
Beach & pool
1st-best month of the year

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

What to pack for Woodland in September

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

In September, Woodland sees daytime highs around 89°F and nights near 60°F. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Woodland 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 Woodland peaks around June 20 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJun 20UV 10Dec 13UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep6High
Oct5Moderate
Nov2Low
Dec2Low

Air quality in Woodland 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 Woodland is worst in September — around 41 µg/m³ PM2.5 (poor), about 3.8× the cleanest month (June, 11 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModeratePoorModerateSep 1140 µg/m³Jun 911 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb15Moderate
Mar18Moderate
Apr15Moderate
May11Good
Jun11Good
Jul21Moderate
Aug37Poor
Sep41Poor
Oct21Moderate
Nov31Moderate
Dec13Moderate
Location & terrain

Where is Woodland?

Woodland sits at 38.7°N, 121.8°W, 69 ft above sea level, in United States. The nearest listed city is Davis, 9.3 mi away.

Topography around Woodland

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

Within 2 miles, the terrain around Woodland has only modest variations in elevation — a maximum elevation change of 62 ft around an average of 62 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 276 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,265 ft.

The land around Woodland is covered by artificial surfaces (57%) and cropland (21%) within 2 miles, cropland (54%) and grassland (21%) within 10 miles, and grassland (34%), trees (29%) and cropland (25%) within 50 miles.

2 miles
62 ft
10 miles
276 ft
50 miles
4,265 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Davis 9.3 mi · West Sacramento 15 mi · Dixon 16 mi · Sacramento 17 mi · Rio Linda 17 mi · North Highlands 22 mi · Arden-Arcade 22 mi · Foothill Farms 23 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 Woodland (38.6785°, -121.7733°, elevation 69 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).