San Antonio weather in June
In June, San Antonio has an average high of 35 °C95 °F and an average low of 23 °C73 °F, with about 71 mm2.8 in of precipitation. It is the 3rd warmest month of the year and ranks 5th for precipitation.
How June compares with other months
Compared with May, June is 3.3 °C5.9 °F warmer on average and drier by 29 mm1.1 in. Compared with July, June is 0.8 °C1.4 °F cooler on average. Daylight lasts about 14.0 hours around the middle of the month. Average relative humidity is 65% and the average cloud amount 46%.
Is June a good time to visit San Antonio?
June is not among the most comfortable months by our comfort score: it is hot (average high 35 °C95 °F) and it is fairly wet (71 mm2.8 in). The most comfortable months in San Antonio are February–April and October–December.
What to wear in June
For San Antonio in June, pack very light, breathable clothing, a sun hat and plenty of water.
June in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| San Antonio | 3595 | 2373 | 712.8 |
| Austin | 3494 | 2272 | 783.1 |
| Killeen | 3493 | 2271 | 833.3 |
| Corpus Christi | 3493 | 2476 | 662.6 |
| Piedras Negras | 38100 | 2476 | 441.8 |
| Ciudad Acuña | 3799 | 2476 | 471.8 |
| Nuevo Laredo | 3799 | 2476 | 562.2 |
| College Station | 3492 | 2272 | 1034.1 |
| Waco | 3392 | 2272 | 943.7 |
Nearby places that are more than 1 °C1.8 °F warmer in June: Piedras Negras, Ciudad Acuña and Nuevo Laredo; cooler: Killeen and Waco.
Other months in San Antonio
- January17 °C63 °F / 5 °C40 °F
- February20 °C68 °F / 6 °C44 °F
- March24 °C76 °F / 11 °C51 °F
- April29 °C84 °F / 15 °C59 °F
- May32 °C89 °F / 19 °C67 °F
- June35 °C95 °F / 23 °C73 °F
- July36 °C96 °F / 24 °C75 °F
- August36 °C97 °F / 24 °C76 °F
- September32 °C90 °F / 21 °C70 °F
- October28 °C83 °F / 16 °C60 °F
- November23 °C73 °F / 10 °C50 °F
- December18 °C64 °F / 5 °C42 °F
Frequently asked questions
How warm is San Antonio in June?
In June the average high in San Antonio is 35 °C (95 °F) and the average low is 23 °C (73 °F).
Does it rain a lot in San Antonio in June?
On average about 71 mm (2.8 in) of precipitation falls in June; it ranks 5th of the 12 months.
Is June the warmest month in San Antonio?
No. The warmest month in San Antonio is August, with an average high of 36 °C (97 °F). The coldest month is January, with an average low of 5 °C (40 °F).
How long is the day in San Antonio in June?
In the middle of June the day in San Antonio lasts about 14.0 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is San Antonio in June?
The average relative humidity in June is about 65%. This is a long-term average for the whole day.
How cloudy is San Antonio in June?
On average about 46% of the sky is covered by cloud in June. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 302 m, while San Antonio lies at about 198 m. Temperatures on this page were therefore adjusted by +0.7 °C1.2 °F using the standard lapse rate of 6.5 °C per 1,000 m.