Photo: Larry D. Moore Opens in a new tab. · CC BY 4.0 · October 2014; not current conditions Opens in a new tab.
Not today. Choose a safer fishing window.
South Fork: 15.9 cfs; North Fork: 0.59 cfs. Forecast high: 102°F. Plan around the heat. NWS: Heat Advisory.
Fishing-rating confidence: Low. This rating does not confirm park flow, water temperature, clarity, footing, or safe wading.
Rating updatedRiver local time:
USGS 08104900 measures the South Fork at Georgetown upstream of Blue Hole. Its chart is nearby context, not a measurement at Blue Hole, San Gabriel Park, or the mainstem confluence. USGS 08104700 is a separate North Fork check below Lake Georgetown. Neither gauge supplies a verified mainstem discharge, water temperature, park depth, water quality, or safe-access decision. Laneport is below Granger Lake and does not describe this Georgetown plan.
Georgetown fork conditions
Not measured: Park water temperature, Water clarity and bacteria, Current access and footing, Mainstem flow at the park confluence.
Upstream of Blue Hole; not a park-depth reading The chart describes this gauge; it does not establish safe wading.
NWS air forecast near
This is an air forecast, not a river-temperature reading. Check the Georgetown heat forecast, carry drinking water and sun protection, and leave if heat makes the outing unsafe.
Discharge
Latest reading: 15.4 cfs at . Falling over about 6.3 hours. Chart covers Sep 5 through Sep 12; readings are provisional and may be revised.
The National Weather Service forecast is temporarily unavailable.
Context U.S. Geological Survey gauge: South Fork San Gabriel River at Georgetown — upstream context
Seasonal starting points, not a live hatch report. Match what you see on the water.
Carry a streamer, a surface option, and a small nymph. Let the feeding you can see decide which to use.
Each pictured fly opens its matching Fly Box guide. These are seasonal planning choices, not a live hatch report.
Keep the trip easy to change. If access or local conditions are uncertain, postpone fishing. Do not use a calm-looking chart to override rising water, a closed crossing, unsafe heat, or a storm warning.
USGS 08104900 supplies this seven-day chart. Discharge is the amount of water passing the station. Stage is its height there. Neither tells you the depth or footing at your park.
USGS 08104700 is below Lake Georgetown. USGS 0810464660 at Reagan Boulevard is above it and is only upstream context for Tejas Park. Do not add the fork readings into an invented main river flow.
The chart does not measure current water temperature, clarity, bacteria, or access conditions. Air temperature is weather data, not measured water temperature.
Check Georgetown weather and upstream rain before leaving. Reassess at the park. Rising water or unsafe heat can end a trip even while a nearby trend looks steady.
Fork readings describe their own upstream locations. At your legal access, check water temperature, clarity, depth, current, footing, and posted notices.
Not recommended today. Recheck the river, weather, and access before planning another trip.
Not recommended today. Recheck the river, weather, and access before planning another trip.
This report does not recommend floating this reach.
Plan a Georgetown park session on the San Gabriel River. Check the fork gauges, weather, and city notices first; the South Fork chart does not verify conditions at Blue Hole or the confluence.
Check city notices and Georgetown weather, then inspect the bank and water at your chosen park. The South Fork chart is an upstream check, not a verified fishing rating for Blue Hole or the confluence.
USGS 08104900 measures the South Fork at Georgetown upstream of Blue Hole. Its chart is nearby context, not a measurement at Blue Hole, San Gabriel Park, or the mainstem confluence. USGS 08104700 is a separate North Fork check below Lake Georgetown. Neither gauge supplies a verified mainstem discharge, water temperature, park depth, water quality, or safe-access decision. Laneport is below Granger Lake and does not describe this Georgetown plan.
A current fork gauge shows a sharp rise. This is a conservative risk signal only; it is not a measured park or combined-mainstem flow.
The current NWS air forecast is about 84F, and the next 24-hour high reaches about 102F. This is an air forecast, not a water-temperature reading. This gauge has no live water temperature. Check the Georgetown heat forecast, carry drinking water and sun protection, and leave if heat makes the outing unsafe.
A heat alert is active near this forecast point, so the score is capped at caution until water temperature and fish-handling risk are checked. NWS alert: Heat Advisory issued September 11 at 7:51PM CDT until September 12 at 7:00PM CDT by NWS Austin/San Antonio TX.
September through November: Adjust depth and retrieve as weather cools; check the rules edition effective on your trip date.
Check the matching branch, then inspect your park. Neither a steady reading nor a numerical CFS value establishes safe wading, good clarity, or a main river fishing rating.
Postpone when access is unresolved or local water cannot be checked. Leave for rising water, unsafe heat, thunderstorms, poor footing, or a restriction affecting the plan.
Check the fork gauges, Georgetown forecast, and city notices. Confirm one legal bank and the water there before choosing a fly.
Check Bull Creek, the Llano, or the Pedernales independently before changing destinations. Another river is not automatically safer or open.
When: Warmwater plan; adjust to conditions
Search reachable current edges with a Woolly Bugger or Clouser. River records establish presence, not today's bite.
When: Warmwater plan; adjust to conditions
Work accessible pool cover with a controlled retrieve. A popper is an option when surface feeding is visible.
When: When local conditions and feeding support it
Try a Pheasant Tail or a small ant or beetle pattern near the bank. Scale the fly to the fish you can see.
When: Condition-dependent
Try a short, slower presentation with a small subsurface fly. No current park-specific population is verified.
When: February–May · North Fork above Lake Georgetown
TPWD describes spring runs from the lake into the North Fork. Make a separate upstream access plan and verify the run. This is not the Georgetown main river's default target.
When: Winter only if a current stocking is confirmed
The checked 2025–26 schedule lists past park stockings, not August availability or a confirmed next-winter schedule.
Start with a named public park. An access listing does not confirm today's open bank, safe water, or usable trail crossing.
A valid Texas fishing license and freshwater endorsement generally apply unless exempt. Use the Outdoor Annual edition effective on your trip date, including the August 31/September 1 changeover. At this review, the online harvest page already displayed September 1, 2026–August 31, 2027. That edition does not establish August 26 limits. Check species rules and posted park restrictions before fishing or keeping fish.
| River section and season | Fishing rules |
|---|---|
| Blue HoleSouth Fork | USGS 08104900 is upstream context, not an onsite reading at Blue Hole. Confirm the park's water and access conditions before fishing. Official rule |
| San Gabriel Parkfork confluence | Check both branches separately. USGS 08104700 describes the North Fork below Lake Georgetown. Neither fork gauge verifies main river conditions at the park. Official rule |
| Tejas ParkNorth Fork above Lake Georgetown | This is a separate upstream trip. USGS 0810464660 at Reagan Boulevard provides nearby upstream context, not a reading at Tejas Park. Official rule |
| Weirdownstream of Georgetown | USGS 08105300 supplies downstream stage context. Its station height is not park depth, a discharge estimate, or a safe-wading limit. Official rule |
| Laneportbelow Granger Lake | USGS 08105700 is outside this Georgetown report. It is not used for this page's chart, weather location, or fishing score. Official rule |
The city lists fishing at this confluence park, 445 E. Morrow Street, with posted hours of 5 a.m.–10 p.m. Check current notices, the bank, and signs on arrival. The listing is not clearance to wade or launch.
Site detailsThe city lists fishing, no entry fee, and 5 a.m.–10 p.m. hours. Enter at Second and Rock. Public parking is at Third and Rock. The city does not monitor flow or bacteria. Follow posted rules and keep casts clear of swimmers.
Site detailsRecreation.gov places Tejas on the North Fork above Lake Georgetown. Verify today's access and notices for that park. An alert naming Jim Hogg Park is not proof that Tejas is closed or open.
Site detailsApplies to: Randy Morrow Trail low-water crossings
Source reviewed:
The visible NOTICE 5/21 supplies no year or verified reopening date. It is not a confirmed current closure of all Georgetown fishing access.
Open official source in a new tabUSGS, city, TPWD, federal park, and weather sources were checked August 26, 2026. No field visit, current water temperature, clarity measurement, or same-day access inspection is claimed.
Check what is allowed, where the rule applies, and whether the river is open.
Check the latest river reading and forecast before you leave.
Check public entry points, land rules, and seasonal access changes.
Use these links for stocking, safety, and other local details.
Check what is allowed, where the rule applies, and whether the river is open.
Open this notice to check its current status, dates, and affected river section.
Applies to: Randy Morrow Trail low-water crossings
The visible NOTICE 5/21 supplies no year or verified reopening date. It is not a confirmed current closure of all Georgetown fishing access.
Open the current rules and check the river section, season, and special limits.
Open the current rules and check the river section, season, and special limits.
Check the latest river reading and forecast before you leave.
Open this page and check the latest safety advice before your trip.
Open this page and check the latest safety advice before your trip.
Open this river reading to check the latest level, flow, and update time.
Open this river reading to check the latest level, flow, and update time.
Open this river reading to check the latest level, flow, and update time.
Open this river reading to check the latest level, flow, and update time.
Check public entry points, land rules, and seasonal access changes.
Open the land or access page, then check signs before you park or enter.
Open the land or access page, then check signs before you park or enter.
Open the land or access page, then check signs before you park or enter.
Open the land or access page, then check signs before you park or enter.
Use these links for stocking, safety, and other local details.
Open this page for more river information and check when it was last updated.
Open this page for more river information and check when it was last updated.
Open this page for more river information and check when it was last updated.
What was checked: Official sources support the branch locations, named parks, species records, and trip-date rules checks. Fly choices are editorial planning suggestions. The South Fork chart is context only. No field visit, current water temperature, current clarity, bacteria result, open-crossing confirmation, safe-flow limit, or verified float is claimed.
Live measurements and forecasts keep their provider timestamps. Rules, access, and trip guidance use the source-review date shown here. BlueStreamFly planning advice is editorial interpretation, not an agency notice.
First-hand experience: BlueStreamFly does not claim a first-hand visit or local field test for this report unless a real contributor is explicitly named and linked.
Check the South Fork and below-lake North Fork separately. This page charts USGS 08104900 upstream of Blue Hole as context only. It does not verify conditions at Blue Hole or the confluence. Laneport is below Granger Lake and does not describe the city parks.
San Gabriel Park and Blue Hole are city-listed fishing starts. Confirm the current bank access, parking, rules, and any trail notices. Tejas Park is a separate North Fork trip above Lake Georgetown, not an extension of the city-park plan.
The report updates separate South Fork and North Fork flows, trends, and Georgetown weather. Those sources do not supply a validated fishing score for the parks. Current water temperature, clarity, footing, and access still need an onsite check. Older or missing readings are labeled.
TPWD describes February–May runs up the North Fork above Lake Georgetown. Verify current activity and upstream access before going. This is not a year-round white-bass plan for Blue Hole or the confluence.
Current trout availability is unverified. The checked 2025–26 schedule lists past winter stockings at Blue Hole and San Gabriel Park. It does not establish an August trout fishery or confirm next winter's stocking dates.
Start with the pictured seasonal table. Woolly Buggers and Clousers cover subsurface searching, poppers suit observed surface feeding, and a Pheasant Tail or ant or beetle pattern offers a smaller-fly option. No live hatch is claimed.
Neither a park listing nor a steady gauge clears a wade or float. Verify local water and footing, posted restrictions, and the exact route. The trail-crossing notice is unresolved here, and this report does not recommend a continuous float.
Check TPWD's edition for the date you fish, plus the park's posted restrictions and license requirements. The online page may display the next season before it takes effect. Do not assume its harvest limits apply to an earlier trip.
