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Best time to visit St. George, UT, USA

Our verdict

The best time to visit St. George is September

Want to know when to travel to St. George? Based on criteria such as the weather, cost of flights and hotels, and peak travel periods, September is the best time to go to St. George. Don’t just take our word for it though… We’ve put together loads of information below to help you decide, such as a monthly breakdown of the weather, what to pack, when to fly, and much more.

In the summer months, temperatures tend to get to a maximum of around 18℃ (65℉). The weather at night in the winter, which is around February-time, can get down to a minimum of 4℃ (39℉).

The longest days between sunrise and sunset in St. George are usually in July, so if you want to get the most out of your daytime activities, be sure to plan your visit around this time. The wet season in St. George usually falls during the months surrounding November each year. It’s not uncommon to get some decent rainfall or light showers during this time, but on some days the weather tends to be fine for a majority of the day, with only a few drops of rain falling from a passing shower.

Learn everything you need to know (and none of the stuff you don’t) about when to go to St. George below. Be sure to check out the handy tools we’ve included to help you search for flights and transport, accommodation, and everything else you need to plan and book your trip.

Warmest month

August

Least rainfall

July

Most daylight

July

St. George seasons

Before you continue, it’s important to know when the seasons are in St. George as they might be different to yours depending on where in the world you’re travelling from. St. George is in the Northern Hemisphere, so the seasons fall during these months:

SeasonMonths
Summer June to August
Autumn/fall September to November
Winter December to February
Spring March to May

Average temperatures in St. George

If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in St. George for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.

St. George climate by month

If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in St. George for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.

Jump to:

JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC

St. George in January

  • Average temperature: 9℃ (48℉)
  • Average high temperature: 10℃ (50℉)
  • Average low temperature: 8℃ (46℉)
  • Average humidity: 78%
  • Average sunny days: 6 days
  • Average rainfall: 63mm (2") over 22 days
6 days
of pure sunshine
22 days
of showers or rain

What to pack: If you’re heading to St. George in January, make sure you pack a warm jacket or coat.


St. George in February

  • Average temperature: 8℃ (47℉)
  • Average high temperature: 9℃ (49℉)
  • Average low temperature: 7℃ (45℉)
  • Average humidity: 78%
  • Average sunny days: 7 days
  • Average rainfall: 51mm (2") over 18 days
7 days
of pure sunshine
18 days
of showers or rain

What to pack: If you’re heading to St. George in February, make sure you pack a warm jacket or coat.


St. George in March

  • Average temperature: 9℃ (48℉)
  • Average high temperature: 10℃ (50℉)
  • Average low temperature: 8℃ (46℉)
  • Average humidity: 79%
  • Average sunny days: 11 days
  • Average rainfall: 38mm (2") over 17 days
11 days
of pure sunshine
17 days
of showers or rain

What to pack: If you’re heading to St. George in March, make sure you pack a warm jacket or coat.


St. George in April

  • Average temperature: 10℃ (51℉)
  • Average high temperature: 11℃ (52℉)
  • Average low temperature: 9℃ (48℉)
  • Average humidity: 80%
  • Average sunny days: 15 days
  • Average rainfall: 32mm (1") over 13 days
15 days
of pure sunshine
13 days
of showers or rain

What to pack: If you’re heading to St. George in April, make sure you pack a warm jacket or coat.


St. George in May

  • Average temperature: 12℃ (54℉)
  • Average high temperature: 13℃ (55℉)
  • Average low temperature: 11℃ (51℉)
  • Average humidity: 82%
  • Average sunny days: 16 days
  • Average rainfall: 27mm (1") over 12 days
16 days
of pure sunshine
12 days
of showers or rain

What to pack: If you’re heading to St. George in May, make sure you pack a warm jacket or coat.


St. George in June

  • Average temperature: 14℃ (58℉)
  • Average high temperature: 15℃ (59℉)
  • Average low temperature: 14℃ (56℉)
  • Average humidity: 85%
  • Average sunny days: 17 days
  • Average rainfall: 26mm (1") over 10 days
17 days
of pure sunshine
10 days
of showers or rain

What to pack: If you’re heading to St. George in June, make sure you pack a light jumper or hoodie.


St. George in July

  • Average temperature: 17℃ (62℉)
  • Average high temperature: 17℃ (63℉)
  • Average low temperature: 16℃ (60℉)
  • Average humidity: 84%
  • Average sunny days: 15 days
  • Average rainfall: 25mm (1") over 13 days
15 days
of pure sunshine
13 days
of showers or rain

What to pack: If you’re heading to St. George in July, make sure you pack a light jumper or hoodie.


St. George in August

  • Average temperature: 17℃ (63℉)
  • Average high temperature: 18℃ (64℉)
  • Average low temperature: 16℃ (61℉)
  • Average humidity: 82%
  • Average sunny days: 12 days
  • Average rainfall: 37mm (1") over 13 days
12 days
of pure sunshine
13 days
of showers or rain

What to pack: If you’re heading to St. George in August, make sure you pack a light jumper or hoodie.


St. George in September

  • Average temperature: 16℃ (62℉)
  • Average high temperature: 17℃ (63℉)
  • Average low temperature: 15℃ (60℉)
  • Average humidity: 80%
  • Average sunny days: 13 days
  • Average rainfall: 31mm (1") over 13 days
13 days
of pure sunshine
13 days
of showers or rain

What to pack: If you’re heading to St. George in September, make sure you pack a light jumper or hoodie.

St. George in October

  • Average temperature: 15℃ (59℉)
  • Average high temperature: 16℃ (60℉)
  • Average low temperature: 14℃ (56℉)
  • Average humidity: 79%
  • Average sunny days: 9 days
  • Average rainfall: 58mm (2") over 18 days
9 days
of pure sunshine
18 days
of showers or rain

What to pack: If you’re heading to St. George in October, make sure you pack a light jumper or hoodie.


St. George in November

  • Average temperature: 12℃ (54℉)
  • Average high temperature: 13℃ (55℉)
  • Average low temperature: 11℃ (52℉)
  • Average humidity: 77%
  • Average sunny days: 4 days
  • Average rainfall: 87mm (3") over 23 days
4 days
of pure sunshine
23 days
of showers or rain

What to pack: If you’re heading to St. George in November, make sure you pack a warm jacket or coat.


St. George in December

  • Average temperature: 10℃ (51℉)
  • Average high temperature: 11℃ (52℉)
  • Average low temperature: 9℃ (49℉)
  • Average humidity: 77%
  • Average sunny days: 5 days
  • Average rainfall: 70mm (3") over 21 days
5 days
of pure sunshine
21 days
of showers or rain

What to pack: If you’re heading to St. George in December, make sure you pack a warm jacket or coat.


Top FAQs

The hottest month of the year in St. George is usually August, where temperatures tend to rise to around 18℃ (64℉) in the middle of the day or early afternoon.
The month with the least amount of rain in St. George is generally around July. The dry season often coincides with cooler weather, so you should check the temperatures in July first to make sure it’s still a good time to go.
The rainiest time of year in St. George is generally around November, although the wetter season can sometimes extend a few months either side of November too.
If you want to get the most out of your time visiting St. George, or if you're just afraid of the dark, the days in July are usually the longest between sunrise and sunset.

St. George map