Where is Lake Johnson City?

Lake Johnson City is a reservoir in Texas.

What amenities does Lake Johnson City have?

Visitor-listed amenities at Lake Johnson City include camping-nearby.

Updated June 13, 2026

Lake Johnson City

Reservoir

Use caution — no live reading, and an advisory is in effect

Use caution

Use caution — no live reading, and an advisory is in effect: a Heat Advisory is in effect for Bandera; Kendall; Blanco; Medina; Frio.

A Heat Advisory is in effect for Bandera; Kendall; Blanco; Medina; Frio.
No official beach advisory posted (Texas Beach Watch (Texas GLO) checked).

See full conditions ↓Can I swim today? →

Use cautionHot — visit earlycamping-nearby

Interactive map not available

Use caution — no live reading, and an advisory is in effect

Use caution

Use caution — no live reading, and an advisory is in effect: a Heat Advisory is in effect for Bandera; Kendall; Blanco; Medina; Frio.

A Heat Advisory is in effect for Bandera; Kendall; Blanco; Medina; Frio. — NWS Austin/San Antonio TX
No official beach advisory posted (Texas Beach Watch (Texas GLO) checked).
No live water-temperature reading for this spot.

Official advisories

Checked against Texas Beach Watch (Texas GLO) — no advisory posted.

Live map near here →

Weather at Lake Johnson City

H: 102° L: 75°

Sunny

102°

Feels like 100°

Precipitation

Humidity

25%

Wind

9 mph

UV Index

6.4

Water Conditions:

🏊Perfect for swimming🧴High UV - use sunscreen

12 AM

82°

3 AM

77°

6 AM

76°

9 AM

80°

12 PM

97°

3 PM

102°

6 PM

100°

9 PM

89°

Pack smarter for Lake Johnson City

Useful gear categories for this kind of water spot. These links open Amazon search results so you can compare current options.

As an Amazon Associate we earn from qualifying purchases.

Inflatable PaddleboardA popular way to explore calm coves and shorelines.

Compare on Amazon →

Life JacketImportant around boats, paddling, and deeper swimming areas.

Compare on Amazon →

Floating CoolerKeeps drinks nearby for swim areas, docks, and boats.

Compare on Amazon →

Waterproof Phone PouchProtects phones around docks, boats, and splashy shorelines.

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Frequently asked questions

Where is Lake Johnson City?: Lake Johnson City is a reservoir in Texas.
Can you swim at Lake Johnson City?: Use caution — no live reading, and an advisory is in effect: a Heat Advisory is in effect for Bandera; Kendall; Blanco; Medina; Frio. Checked August 23, 2026.
What amenities does Lake Johnson City have?: Visitor-listed amenities at Lake Johnson City include camping-nearby.

Visitor Reviews

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Been here? A quick note helps the next visitor plan their day. Handy things to mention:

Water temperatureCrowds & parkingBest time to goSafety & access

Best Times to Visit

☀️

Right Now

Very warm - visit early morning or evening

🏞️ Lakes Tips:

›Check for boat launch facilities and fees
›Obtain required fishing licenses before arrival
›Be aware of lake-specific regulations and restrictions
›Monitor water quality reports before swimming

Best Seasons:

☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

Texas

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