San Antonio Rainfall Totals Surpass Yearly Averages
The city has recorded 29.63 inches of rain so far in 2026, marking a surplus despite a recent dry spell.
Updated on Oct. 25, 2026 in Current Conditions
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San Antonio has accumulated 29.63 inches of rain this year, placing total precipitation 2.13 inches above the average for the year to date. This surplus remains steady even as the region recently experienced a 22-day stretch without measurable rainfall.
Why it matters
The majority of this year's rainfall, accounting for two-thirds of the total volume, occurred during a concentrated period between April and June. This pattern stands in contrast to other major Texas cities like Austin and Dallas, which currently face rainfall totals below their respective yearly averages.
San Antonio has recorded 29.63 inches of precipitation this year, while recent projections from the National Blend of Models indicate an expected 0.5 to 1 inch of rain over the next five days.
The players
National Blend of Models
This is a statistically based post-processing system that integrates multiple numerical weather prediction models to provide accurate forecasting guidance.
The details
Weather patterns have been influenced by low pressure in the western United States, which transports Pacific moisture into Texas and moderates high temperatures. While San Antonio reported a dry period lasting from October 3 through October 24, increased rain chances are forecast for the coming days.
Timeline
January 1, 2026 – March 31, 2026: The city recorded less than 2 inches of total rain.
April 1, 2026 – June 30, 2026: Precipitation reached over 19 inches, accounting for most of the year's total.
October 3, 2026 – October 24, 2026: A 22-day stretch passed without any measurable rainfall.
October 29, 2026 – October 30, 2026: Rain probabilities rise to 40% and 50% respectively.
October 31, 2026: Rain chances are expected to decrease to approximately 30%.
Seasonal Patterns
San Antonio's current rainfall surplus follows the established pattern of historical annual rainfall averages for South Texas. This variability contrasts with the multi-inch deficits currently recorded in other major urban centers like Austin and Dallas.
Residents should prepare for moderate rainfall through the end of the week, with chances peaking at 50% on Friday. While 0.5 to 1 inch of rain is projected, commuters should monitor local weather alerts for potential hazardous driving conditions during this period.
The takeaway
San Antonio maintains a water surplus for the year despite a recent dry spell that lasted through most of October. Residents can expect a shift toward wetter conditions heading into early November, potentially mitigating the recent lack of precipitation.
Further reading
For more information on regional weather trends, visit San Antonio Current Conditions.
Source note: This article includes information reported by San Antonio Express-News.
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