Choke Canyon Reservoir & State Park, TX

Today’s Forecast:

Today’s Report:

About Choke Canyon Reservoir & State Park

Forecast guidance is centered on the principal visitor area near Three Rivers. The wider reservoir and brush-country park setting reaches toward Calliham Unit, so local wind and access deserve a second check.

Plan Around Conditions

Confirm the named launch, water level and wind exposure near Three Rivers; a usable shoreline does not guarantee a safe return trip. Consult Texas Parks and Wildlife entry, camping and activity notices before relying on conditional access.

Weather Tips

• Turn toward the selected launch before thunderstorm outflow reaches open water; wind near Calliham Unit can arrive ahead of rain.
• For heat, favor the portion near Three Rivers with the shortest return and dependable shade or drinking-water plan.

Nearby Towns and Areas

• Three Rivers
• Calliham Unit
• South Shore Unit
• Frio River
• Live Oak County

Adjust the Day to the Forecast

If wind or water conditions rule out the planned launch, use a legal shore-fishing or land route near Three Rivers instead of moving blindly to another access point.

7-Day Forecast

Weather by Season

Winter

Winter fronts provide the coolest recreation weather near Three Rivers, although sharp wind and occasional freezes can affect migration, ramps and course starts.

Spring

Heat builds early as thunderstorms alternate with drought; reservoir level, refuge access or reservoir level can change quickly around Calliham Unit.

Summer

Long periods of extreme heat and warm nights demand short land outings; tropical rain can then flood roads or rapidly change water access near Three Rivers.

Fall

Migration and cooler mornings improve outdoor use, but September tropical systems and lingering drought remain competing concerns around Calliham Unit.

Key Climate Data Points

• Local climate: Reservoir and brush-country park conditions near Three Rivers make reservoir level the leading local planning signal.
• Annual mean temperature: Near Three Rivers, the annual mean temperature is generally in the low 70s °F; open terrain produces large sun-and-wind exposure.
• Warmest or primary-use period: June through August is the hottest period; reservoir level often determines whether the primary activity remains practical.
• Coldest or limited-access period: December through February is coolest; snow is unusual, but northers, cold water and isolated freezes can close exposed access.
• Most consequential precipitation period: Late spring and early fall is the most consequential precipitation period here because it can affect reservoir level near Calliham Unit.
• Primary hazard timing: May through september extreme heat and tropical rainfall most directly affects launch status.
• Best general outdoor window: November through march for land activities; water plans remain level-dependent; the useful window still depends on reservoir level.