Best Time to Visit San Juan County
Best time to visit San Juan County: May, June, July, August and September. Month-by-month temperature, rainfall and crowd guidance.
Best time to visit San Juan County
Go in May, June, July, August and September. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and December - expect the least comfortable mix of heat, cold or rain.
Climate in San Juan County month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 36° | 19° | 1,0 in | ★★☆☆☆ |
| February | 41° | 24° | 1,5 in | ★★☆☆☆ |
| March | 50° | 30° | 0,9 in | ★★★☆☆ |
| April | 56° | 34° | 1,3 in | ★★★★☆ |
| May | 66° | 42° | 1,2 in | ★★★★☆ |
| June | 80° | 56° | 1,4 in | ★★★★★ |
| July | 83° | 60° | 1,5 in | ★★★★★ |
| August | 80° | 58° | 2,2 in | ★★★★☆ |
| September | 71° | 51° | 1,7 in | ★★★★☆ |
| October | 60° | 41° | 4,1 in | ★★★☆☆ |
| November | 45° | 29° | 0,8 in | ★★★☆☆ |
| December | 41° | 25° | 0,6 in | ★★★☆☆ |
Climate type: Continental. Source: Open-Meteo archive (ERA5).
How San Juan County compares with nearby places
Annual averages, and the difference against San Juan County.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Monument Valley | 46 mi | 57°F | +41°F warmer | 6 in |
| Canyonlands National Park | 49 mi | 58°F | +42°F warmer | 5 in |
| Dead Horse Point State Park | 59 mi | 55°F | +39°F warmer | 7 in |
| Moab | 67 mi | 60°F | +43°F warmer | 8 in |
| Grand County | 67 mi | 60°F | +43°F warmer | 8 in |
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
Summary
San Juan County is a county in Utah. San Juan County is a county in the United States. It has a population of about 14.500.
Right now it is 68°F (20°C) in San Juan County with overcast. It feels like 61°F. Today runs from 58°F to 80°F. Chance of precipitation is 11%. Sightseeing conditions score 9.1/10 - excellent - go now.
The best time to visit San Juan County is May, June, July, August and September. The climate is continental. January, February and December tend to be the least comfortable months. July is the warmest month with average highs near 83°F, while January is the coldest with lows near 19°F.
The closest major airport is Salt Lake City International Airport (SLC), about 248 mi away. Nearby highlights include Monument Valley, Canyonlands National Park, Dead Horse Point State Park and Arches National Park.
In plain terms. Today is about average for August. The forecast high of 80°F is in line with the 80°F typical for this month. The best window to be outside is roughly 8 AM to 11 AM, when temperature, rain chance and wind line up best. sightseeing is the strongest bet in San Juan County today at 9.1/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Weather in San Juan County right now
Source: Open-Meteo. Updated 12:13 PM, Aug 24 local time.
Weekend outlook
🌦️ 80° / 58°
Light drizzle · 11% rain · wind 20 mph
🌦️ 83° / 62°
Light drizzle · 6% rain · wind 15 mph
Things to do in San Juan County
Attractions, parks and landmarks in and around San Juan County.
Quick facts about San Juan County
| Type | County |
|---|---|
| State | Utah |
| Country | United States |
| Continent | North America |
| Coordinates | 37°37′30″N 109°47′60″W (37.625, -109.8) |
| Population | 14.500 |
| Local time | 12:13 PM (UTC-06:00) |
| Best months | May, June, July, August and September |
| Climate | Continental |
Explore San Juan County
Every topic we hold for this place, and the same topic for the places around it.
Best Time to Visit for related places
Frequently asked questions
Where is San Juan County?
San Juan County is a county in Utah. Its coordinates are 37.625, -109.8. It lies in North America.
What is the weather like in San Juan County right now?
It is currently 68°F (20°C) with overcast. Humidity is 33% and wind is 10 mph.
When is the best time to visit San Juan County?
May, June, July, August and September offer the most comfortable conditions in San Juan County, which has a continental climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is San Juan County in?
San Juan County observes America/Denver (UTC-06:00). The local time is 12:13 PM.
How many people live in San Juan County?
San Juan County has a population of approximately 14.500.
What is the nearest airport to San Juan County?
The closest airports are Salt Lake City International Airport (SLC), 248 mi away.
What are the top things to do in San Juan County?
Popular options include Monument Valley, Canyonlands National Park, Dead Horse Point State Park, Arches National Park, Mesa Verde National Park and Mesa Verde (UNESCO World Heritage Site).
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 24, 2026 at 12:13 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
