St George weather in September 2026

Q: How hot is it in St George in September?

Daytime temperatures usually reach 26°C in St George in September with no heat and humidity, falling to 9°C at night.

Q: How sunny is it in St George in September?

There are normally 10 hours of bright sunshine each day in St George in September - that's 80% of daylight hours.

Q: Does it rain in St George in September?

There are usually 6 days with some rain in St George in September and the average monthly rainfall is 31mm.

Expect daytime maximum temperatures of 91°F in St George, Utah in September and high heat and humidity based on long-term weather averages. There are 11 hours of sunshine per day on average.

91
91°F max day temperature
11
11 hours of sunshine per day
3
3 days with some rainfall
57
57°F min night temperature
12
12 hours of daylight per day
H
High heat & humidity
0.6
0.6 inches of monthly rainfall
8
8 (Very High) UV index

More about St George

St George by month

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

Recommended for Utah

Momondo: Compare latest car hire deals

Sale

Search & compare the best car hire deals
Free 48-hour cancellation policy & no hidden charges
Check prices with Avis, Europcar, Sixt & more

Go to Momondo deal >>

View all Momondo offers

The September weather guide for Utah (St George) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C) | Imperial (°F)

More about the USA

How hot is it in St George in September?

Daytime temperatures usually reach 79°F in St George in September with no heat and humidity, falling to 48°F at night.

How sunny is it in St George in September?

There are normally 10 hours of bright sunshine each day in St George in September - that's 80% of daylight hours.

Does it rain in St George in September?

There are usually 6 days with some rain in St George in September and the average monthly rainfall is 1.2 inches.

St George September sunrise & sunset times

Browse the sunrise and sunset times for St George in September 2026. Select a month to view St George sunrise and sunset times for the next 12 months.

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

Date	Sunrise times	Sunset times
Tuesday, 1st September 2026	06:05	19:03
Tuesday, 15th September 2026	06:16	18:42
Wednesday, 30th September 2026	06:29	18:19

Be inspired

Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers

We promise not to share your details

Popular travel offers

Utah - quick facts
Flight time^✝	12.5 hours
Time difference	UK -7 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Why visit?	Nature
Tourist info	Utah Office of Tourism