Climate & Weather in New Braunfels
New Braunfels has a humid subtropical climate (Köppen Cfa) -- hot summers, mild winters, and no true dry season. Average annual temperature runs around 68°F, with summer highs commonly reaching the mid-to-upper 90s°F and occasionally exceeding 100°F, and winter lows typically staying in a comparatively mild 40-60°F range.
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Learn moreSummer: Hot and Long
Summer in New Braunfels regularly pushes temperatures into the mid-to-upper 90s°F, with the highest average summer temperatures cited around 96.3°F and days exceeding 100°F common during peak summer. This heat is also the backdrop for the city's genuine river-tourism economy -- the same summer heat that drives real air-conditioning demand also drives the seasonal demand for tubing on the Comal and Guadalupe Rivers, a two-sided fact worth naming rather than treating heat purely as a downside.
Winter: Genuinely Mild
Winter temperatures in New Braunfels typically range from about 40°F to 60°F, with the lowest average winter temperature cited around 43.7°F -- mild by nearly any national comparison, with occasional cold snaps but nothing resembling a true winter season in most years, consistent with the broader Central Texas climate pattern.
Rainfall and Flash-Flood Risk (See Dedicated Topic Page)
Annual rainfall in New Braunfels averages around 33 inches, spread unevenly across the year -- and it's the intensity and concentration of individual rain events, not the annual total, that drives the region's genuine flash-flood hazard. See the flood-hurricane-risk topic page for the full, unflinching detail on why this terrain floods the way it does and what that has meant historically; this climate summary intentionally doesn't repeat that detail.
Hurricane Season in Practical Terms
Atlantic hurricane season runs June 1 through November 30 and overlaps New Braunfels' warm season, but the city's roughly 111-mile inland position means direct hurricane wind or storm surge is not a meaningful risk here. What does matter during this window -- and, in practice, at other times of year too -- is the potential for heavy, tropical-moisture-enhanced rainfall to trigger the kind of rapid river rise described on the flood-hurricane-risk topic page.
Key takeaways
- New Braunfels has a humid subtropical climate: average annual temperature around 68°F, with summer highs commonly in the mid-to-upper 90s°F (occasionally over 100°F) and mild winters typically in the 40-60°F range.
- Summer heat is a two-sided fact here -- it drives real air-conditioning demand but also underpins the city's genuine river-tubing tourism economy.
- Annual rainfall averages around 33 inches, but the flash-flood risk that defines New Braunfels comes from the intensity of individual storms on limestone terrain, not the yearly total -- see the flood-hurricane-risk topic page.
- Hurricane season (June 1-November 30) overlaps the warm season, but New Braunfels' ~111-mile inland position means the practical risk is rainfall-driven flash flooding, not direct hurricane wind or surge.
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