Telluride weather in September

In September, Telluride sees average daytime highs of 59°F and overnight lows near 35°F, with 2.6 in of precipitation across 11.4 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 63°F in the first days to 55°F by the end. The sky is clear or mostly clear about 49% 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 Telluride's 3rd-clearest and 6th-windiest month. For the whole year in context, see Telluride's year-round climate.

Daytime high
59°
4th warmest
Overnight low
35°
9th coldest
Precipitation
2.6 in
11.4 wet days
Daylight
12 h 12 min
5:58 AM – 6:13 PM
Cloud cover
41%
3rd clearest
Wind
4 mph
6th windiest
Solar energy
5.74 kWh/m²
Travel score
4.6
out of 10

Telluride is town and county seat of San Miguel County, Colorado, United States.

Density
1,255/km²
people per km²
Founded
1878

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 63°F in the first days to 55°F by the end.

A typical September day in Telluride reaches about 59°F in the afternoon and slips back to 35°F overnight — a 24°F spread between the day's warmth and the night's chill. On most days the high lands between 51°F and 66°F. Set against its neighbours, September runs about 7°F cooler than August and about 11°F warmer than October.

20°40°60°80°151015202530
Avg high (°F)Avg low (°F)
16440
26339
36339
46339
56238
66238
76238
86138
96137
106137
116037
126036
136036
146035
155935
165935
175934
185834
195834
205833
215833
225733
235733
245732
255632
265631
275631
285531
295531
305430

How September really feels in Telluride

Once humidity and wind are folded in, September averages 0 days that feel above 90°F and 17 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
17
wind chill below the day's low

The story in September is cold — wind chill drags the overnight "feels like" below the raw low.

Telluride 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 (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan28° / 2.21010.79.70.0
Feb30° / 10°2.311.312.210.50.0
Mar36° / 16°2.511.71211.70.0
Apr40° / 21°3.011.711.1130.1
May50° / 27°2.110.25.9142.3
Jun63° / 35°1.36.50.614.66.1
Jul68° / 43°4.213.9014.45.9
Aug66° / 42°4.516013.55.4
Sep59° / 35°2.611.40.912.34.6
Oct48° / 24°2.19.86.3111.8
Nov36° / 11°1.98.18.39.90.0
Dec28° / 2.09.510.39.40.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 21% of September, with mostly cloudy or overcast conditions the remaining 31%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16337
26436
36436
46535
56535
66634
76634
86634
96733
106733
116733
126832
136832
146832
156931
167030
177129
187129
197327
207327
217327
227327
237327
247327
257327
267426
277426
287327
297327
307228

Chance of precipitation in September

Any precipitationSnow

Telluride gets around 2.6 in of rain and snow over 11.4 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 39% and peaks near 50% on the wettest days, and about 1 day brings snow. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)Snow chance (%)
1501
2491
3481
4471
5471
6461
7451
8451
9441
10431
11422
12412
13402
14392
15383
16373
17353
18343
19334
20324
21324
22325
23325
24326
25327
26337
27338
28349
293410
303511

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100

Wind in September

Winds average 4 mph in September.

Across September, daily wind ranges from about 4 mph on the calmest days to 4 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
14calm
24calm
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
284calm
294calm
304calm

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 5:45 AM to 6:11 AM, and sunset from 6:37 PM to 5:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:456:37
212.85:466:35
312.85:476:34
412.75:486:32
512.75:496:30
612.75:506:29
712.65:506:27
812.65:516:26
912.55:526:24
1012.55:536:23
1112.45:546:21
1212.45:556:19
1312.45:566:18
1412.35:576:16
1512.35:576:14
1612.25:586:13
1712.25:596:11
1812.26:006:10
1912.16:016:08
2012.16:026:06
2112.06:036:05
2212.06:046:03
2311.96:056:01
2411.96:056:00
2511.96:065:58
2611.86:075:57
2711.86:085:55
2811.76:095:53
2911.76:105:52
3011.76:115:50

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.74 kWh/m².

For context, solar energy here swings from a low near 2.75 kWh/m² to a high of 8.23 kWh/m² in June across the year — September's 5.74 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.0Intense
46.0Intense
56.0Intense
66.0Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.6Bright
215.6Bright
225.6Bright
235.5Bright
245.5Bright
255.4Bright
265.4Bright
275.3Bright
285.3Bright
295.3Bright
305.2Bright
Planning a trip in September

Is September a good time to visit Telluride?

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

4.6
Sightseeing
4th-best month of the year
0.4
Beach & pool
4th-best month of the year

September is a reasonable time to visit Telluride for sightseeing.

What to pack for Telluride in September

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

In September, Telluride sees daytime highs around 59°F and nights near 35°F. Worth packing: a warm layer, rain gear and sun protection. About 11 days see rain.

a warm layerrain gearsun protection

UV index in Telluride in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Telluride peaks around July 10 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 10UV 12Jan 1UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar7High
Apr7High
May10Very high
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate
Location & terrain

Where is Telluride?

Telluride sits at 37.9°N, 107.8°W, 0 ft above sea level, in United States. The nearest listed city is Montrose, 37 mi away.

Topography around Telluride

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

Within 2 miles, the terrain around Telluride has large variations in elevation — a maximum elevation change of 3,481 ft around an average of 10,089 ft above sea level; within 10 miles, very significant variations in elevation — a maximum elevation change of 6,365 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 8,862 ft.

The land around Telluride is covered by trees (80%) within 2 miles, trees (54%) within 10 miles, and trees (60%) and grassland (26%) within 50 miles.

2 miles
3,481 ft
10 miles
6,365 ft
50 miles
8,862 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainmoss and lichen
September weather nearby: Montrose 37 mi · Durango 46 mi · Farmington 86 mi · Clifton 87 mi · Grand Junction 88 mi · Aspen 102 mi · Moab 104 mi · Cañon City 144 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 Telluride (37.9375°, -107.8123°, elevation 0 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).