The short answer: the rules, court size and net are identical indoors and out. What changes is the ball (indoor balls customarily have larger holes and play softer and slower), the surface (wood, sport tile or cushioned acrylic indoors, usually hard acrylic over concrete or asphalt outside), and the conditions: no wind, sun or heat indoors. Outdoor games favour control and keeping the ball low. Indoor games are slower, with more dinking.

In Central Texas, the conditions are the bigger difference. We analysed 10 years of NOAA daily weather records for Austin. The city averaged 140 days a year at 90°F or hotter and 44 days at 100°F or hotter from 2016 to 2025.

Austin weather, 2016–2025 average
Austin days at 90°F+, per year
140
Days at 100°F+, per year
44
Days with 0.1 in+ of rain
46
Days with 100°F+, rain or a high under 45°F
93

Source: Pickleland analysis of NOAA NCEI Global Historical Climatology Network daily data, Austin Camp Mabry station (USW00013958)

What’s the same and what’s different

IndoorOutdoor
Court and net20 × 44 ft; net 36 in at sidelines, 34 in at centerSame (2026 rulebook Section 3)
RulesSameSame
BallCustomarily larger holes, softer, slowerCustomarily smaller holes, harder, faster
SurfaceWood gym floors, sport tile or cushioned court surfacesAcrylic over concrete or asphalt
WindNoneCan push lobs and drops off line
Sun and glareNone; lighting matters insteadSun in your eyes on lobs and overheads
HeatClimate-controlled at dedicated clubsIn Austin, 140 days a year at 90°F+
CeilingLow ceilings limit lobs; a ball that hits one is a fault (Rule 10.C.4)No ceiling
Typical play styleMore dinking, longer ralliesMore drives, keeping the ball low

The balls

The 2026 USA Pickleball rulebook says any approved ball can be used indoors or outdoors (Rule 3.C.1). In practice, players use different ones. The rulebook’s own illustration notes that “the ball with larger holes is customarily used for indoor play” and “the ball with smaller holes is customarily used for outdoor play” (2026 rulebook, Figure 3-2). USA Pickleball describes approved balls as having 26 to 40 holes (USA Pickleball).

  • Indoor balls are typically softer, which keeps the bounce manageable on smooth floors.
  • Outdoor balls are typically harder, with smaller holes, which helps them hold their line in wind.

Our guide to the ball used in pickleball compares specific models.

The surfaces

Indoors, you might play on a gym floor with taped lines, sport tiles, or a dedicated cushioned court. Outdoors, most courts are acrylic coatings over concrete or asphalt. We compared them while building Pickleland in the best surface for a pickleball court. Whatever the surface, wear non-marking court shoes with good grip indoors.

How weather changes outdoor play in Austin

Average days at 90°F or hotter in Austin, by month

2016–2025 average. December to February average under 1 day combined.

Source: Pickleland analysis of NOAA NCEI daily data, Austin Camp Mabry (USW00013958)

Some numbers from our analysis of the 3,653 days from January 2016 to December 2025:

  • July and August average about 29 days each at 90°F or hotter, practically the whole month. August averages 17.8 days at 100°F+.
  • The hottest years for 100°F days were 2023 (80 days) and 2022 (68). The coolest recent year was 2021, with 12.
  • About 46 days a year see a tenth of an inch of rain or more, enough to soak an outdoor court.
  • Counting days that hit 100°F, rained at least 0.1 inch, or never got above 45°F, Austin averaged 93 days a year, about one in four, that are hard on outdoor play.

Heat matters for more than comfort. Outdoor courts in sun get hotter than the air, and pickleball is moderate-intensity exercise, about 4.1 METs (calories burned). Our guide to playing in the Texas heat covers hydration and timing.

Strategy: indoor vs outdoor

Indoors:

  • The slower ball and still air reward patience. Expect longer dinking rallies.
  • Softer balls are easier to reset, so drives win fewer outright points.
  • Watch the ceiling on lobs and the lighting on overheads.

Outdoors:

  • Play with the wind: hit harder into it, softer with it, and avoid lobbing into a crosswind. See playing in the wind.
  • The faster ball rewards drives and keeping the ball low.
  • Check the sun before you serve and before you call for a lob.

Pros and cons

IndoorOutdoor
ProsYear-round, no heat, wind, rain or sun; consistent bounce; easier to scheduleFree public courts; fresh air; more courts in total
ConsUsually costs money; fewer courts; gym floors can be slickWeather cancellations; heat in summer; wind and glare

Frequently Asked Questions

What is the difference between indoor and outdoor pickleball?

Same rules and court. Indoor play customarily uses a ball with larger holes that’s softer and slower, on wood, tile or cushioned surfaces, with no wind or sun. Outdoor play uses a harder ball with smaller holes on acrylic over concrete or asphalt, and weather becomes part of the game.

Can you use an outdoor pickleball ball indoors?

Yes, the rulebook allows any approved ball indoors or out. But outdoor balls are faster and bouncier on smooth indoor floors, so most indoor venues use indoor balls.

Is indoor or outdoor pickleball better for beginners?

Indoors is easier to learn: no wind, a slower ball and consistent bounce. Outdoor courts are a cheap way to play once you know the basics.

How many days is it too hot to play pickleball outside in Austin?

From 2016 to 2025, Austin averaged 140 days a year at 90°F or hotter and 44 at 100°F or hotter, mostly from June to September. Early mornings help, but in July and August an air-conditioned court is the reliable option.

Why do indoor pickleballs have bigger holes?

Larger holes and a softer shell slow the ball and soften its bounce on smooth indoor floors, where there’s no wind to push it off line.

How we analysed the weather

We downloaded NOAA’s daily summaries for the Austin Camp Mabry weather station (USW00013958) from the NCEI data service, covering every day from January 1, 2016 to December 31, 2025 (3,653 days, none missing). We counted days by daily maximum temperature and precipitation, then averaged by year and by month. Camp Mabry is in central Austin, so suburbs such as Pflugerville can run a little different.

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