Alright, San Diego, you want to know if today's a good day to get out there and grind? Yeah, mostly. Stop whining and get moving.
- The "June Gloom" is in full effect, keeping temperatures mild and the sun from trying to roast you alive. Nice for keeping those internal temps down.
- Air quality is actually pretty decent for a change, so your lungs won't be doing extra duty filtering crud.
- Just watch out for some specific trail headaches and remember your allergy meds, because that "moderate" pollen is no joke for some of us.
The Rundown
Look, another overcast Monday in May. Shocking, I know. It's 17.1°C (about 62.8°F) and gray, which is basically prime running weather for anyone who doesn't like sweating through their eyeballs. You've got a slight chance of a sprinkle, but honestly, it'll probably just make the air smell better.
Air quality is sitting pretty at an AQI of 37, with ozone as the dominant pollutant, but that's a "good" rating, so breathe easy. The bigger concern for some of you delicate flowers out there is the Moderate pollen count. If you're one of the sniffly ones, you know the drill: pre-dose your antihistamines and maybe don't rub your eyes while you're out there.
| Pollen Level | Status |
|---|---|
| Overall | Moderate |
Local Trail Talk
Now, for the actual hazards. While there aren't any major wildfires actively spewing smoke over the immediate metro area today (thank god, the last few weeks were... a lot), you've still got to be smart about where you're putting your feet.
Heading south? If you planned on hitting some trails in Tijuana River Valley Regional Park, know that a few popular spots are closed. Sherwood Trail, Vireo Trail (west of Hollister St.), and Cathedral Trail are all out of commission for now. Expect some noise and dust from ongoing work, so maybe choose another route if you're looking for peace and quiet.
Over in Potrero County Park, parking and general access are going to be a mess today, May 25th. There's a group reservation and some community event going on. Unless you are that group, find another place to do your long run. Seriously, avoid the headache.
On the bright side, if you're near Serra Mesa or Mission Valley, they just cut the ribbon on some sweet new trail improvements in Ruffin Canyon. There's even a new public access tunnel under Friars Road. So, if you're looking for somewhere new to explore without dodging cones, that's your spot. Just remember, it's Memorial Day, so popular spots might have more folks out than usual. Share the path, don't be a jerk.
No massive construction detours or surprise road races are explicitly blocking your path today, aside from what's already mentioned. Caltrans is always messing with I-805, promising "future weekend closures" for an overhaul, but nothing critical for your immediate run this morning. Just keep an eye out for usual city maintenance on bike paths and sidewalks, but that's just life in San Diego.
Bottom line: Good day for a run, just pick your park wisely. And for the love of all that is holy, hydrate.
Data grounded with KESQ News, AccuWeather, County of San Diego, City of San Diego, and Alert San Diego from May 25, 2026.