Onion Springs Overflow Camping Area campground
Onion Springs Overflow Camping Area
Reservations at Onion Springs Overflow Camping Area are not accepted, as it operates on a first-come, first-served basis. Campers should arrive early to secure a spot, especially during popular times. The best time to visit this campground is during the spring and fall seasons when the weather is mild and pleasant.
There are several attractions near Onion Springs Overflow Camping Area. Nearby is the stunning Yosemite National Park, known for its breathtaking landscapes and hiking trails. Visitors can also enjoy fishing in the nearby lakes and rivers. It is important to be cautious of wildlife in the area, particularly bears, and take necessary precautions to ensure safety. Overall, Onion Springs Overflow Camping Area offers a serene and picturesque camping experience, making it a must-visit destination for outdoor enthusiasts.
What's on-site at Onion Springs Overflow Camping Area
Key facilities Snoflo tracks for this campground. Confirm with the operator before booking -- amenities can change seasonally.
Plan your trip down to the hour
Same weather feed Snoflo's iOS app uses -- updated continuously from NOAA / yr.no.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max so trends jump out at a glance.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks. Hover any point for the full breakdown.
Other campgrounds in the area
Snoflo-tracked campsites within driving distance of Onion Springs Overflow Camping Area, with reservations status.
| Campground | Reservations | Toilets | View |
|---|---|---|---|
| Sample Meadow Campground | ✗ | ✗ | → |
| Sample Meadow | ✗ | ✓ | → |
| Portal Forebay Campground | ✗ | ✗ | → |
| Portal Forebay | ✗ | ✓ | → |
| Vermillion Campground | ✓ | ✗ | → |
Nearby streamflow
USGS streamgauges within reach of Onion Springs Overflow Camping Area -- pulled live from the National Water Information System.
| Streamgauge | Discharge | View |
|---|---|---|
| Mf San Joaquin R Nr Mammoth Lakes Ca | 307 cfs | → |
| Nf Willow C Nr Sugar Pine Ca | 416 cfs | → |
| Hot C A Flume Nr Mammoth Lakes Ca | 56 cfs | → |
| Deadman C A Big Springs Nr Crestview Ca | 33 cfs | → |
| Big C Div Nr Fish Camp Ca | 0 cfs | → |
| Merced R A Happy Isles Bridge Nr Yosemite Ca | 853 cfs | → |
Nearby snow depths
NRCS SNOTEL stations within reach of Onion Springs Overflow Camping Area -- relevant when planning a shoulder-season or alpine trip.
| SNOTEL station | Snowpack | 24h Snowfall | View |
|---|---|---|---|
| Nohrsc Kaiser Point | 0.0 in | 0.0 in | → |
| Nohrsc Graveyard Meadow | 0.6 in | 0.0 in | → |
| Nohrsc Green Mtn | 6.1 in | 0.0 in | → |
| Huntington Lake | 1.6 in | 0.0 in | → |
| Nohrsc Mammoth Pass | 0.3 in | 0.0 in | → |
| Nohrsc Tamarack Summit | 0.7 in | 0.0 in | → |
Plan a longer trip
The closest parks, lakes, boat launches, and paddle runs so a camping night can grow into a full weekend.
Parks
- Wilderness Ansel Adams
- Wilderness Kaiser
- Devils Postpile National Monument
- Owens River Headwaters Wilderness
- Mammoth Creek Community Park
- Trails End Park
Boat launches
- Lake Edison Boating Site
- Huntington Boat Ramp & Launching Site
- Mammoth Pool Rd, California
- Florence Lake Boating Site
- Florence Lake Campground
Fishing spots
Points of interest
- Vermillion View Observation Site
- Devils Postpile Formation
- Visitor Contact / Ranger Station
- Minaret Vista Observation Site
- Mammoth Lakes Welcome Center
- Blue Canyon Vista Observation Site
Paddle runs
- Confluence With North Fork San Joaquin River To Hells Half Acre
- Rainbow Falls To Confluence With North Fork San Joaquin River
- Cora Creek To Confluence With San Joaquin River
- Rainbow Falls To National Monument Boundary
- Hemlock Crossing To Confluence With Cora Creek
- Blarney Meadows To South End Of Florence Lake
Camping essentials & Leave No Trace
- Pack it in, pack it out
- Take all trash, food scraps, and gear back with you to keep campsites clean and protect wildlife.
- Respect wildlife
- Observe animals from a distance, store food securely, and never feed wildlife to maintain natural behavior and safety.
- Know before you go
- Check weather, fire restrictions, trail conditions, and permit requirements to ensure a safe and well-planned trip.
- Minimize campfire impact
- Use established fire rings, keep fires small, fully extinguish them, or opt for a camp stove when fires are restricted.
- Leave what you find
- Preserve natural and cultural features by avoiding removal of plants, rocks, artifacts, or other elements of the environment.
Set push alerts in the Snoflo app
Save Onion Springs Overflow Camping Area as a favorite, set a custom threshold (precipitation, snowpack, freezing temperatures), and the iOS app will push the moment conditions cross.
About Onion Springs Overflow Camping Area
Can I make reservations at Onion Springs Overflow Camping Area?
This campground does not appear to accept reservations -- it's typically first-come, first-served. Arrive early on summer weekends.
How fresh is the weather data on this page?
The hourly forecast updates throughout the day from the NOAA / yr.no public feeds. Streamflow data is pulled live from USGS streamgauges and snowpack from the NRCS SNOTEL network.
What's the best time of year to visit?
Use the 15-day temperature & precipitation outlook on this page to plan -- pick a window with comfortable temperatures and low precipitation. For longer trips, the 5-day hourly meteogram shows snow + rain accumulation hour-by-hour.
How do I get to Onion Springs Overflow Camping Area?
Tap Directions in the hero above to open driving directions in Google Maps, or Open in map to center the Snoflo interactive map on the campground.
Can I get alerts when conditions change?
Yes -- alerts are managed through the Snoflo iOS app. Favorite this campground, set a threshold (temperature, snowpack, precipitation), and you'll get a push the moment it crosses.
Other campgrounds near here
Snoflo-tracked campgrounds within driving distance of Onion Springs Overflow Camping Area.