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Climate of San Antonio
San Antonio has a oceanic climate. There is rainfall during all months of the year. The average annual temperature for San Antonio is 50° degrees and there is about 186 inch of rain in a year. It is dry for 199 days a year with an average humidity of 68% and an UV-index of 5.
Climate averages for the whole year
- Day: the average daily temperature during the day is between 16°C and 36°C
- Night:the average nighttime temperature is between 7°C and 24°C
- Rain: it rains 136 days and there is a total of approximately 472 mm rainfall
- Sun hours: throughout the year there are 2819 sun hours
| Maximum temperature: | between 16°C and 36°C |
| Warmest month: | 36°C in August |
| Coldest month: | 16°C in January |
| Night temperature: | between 7°C and 24°C |
| Dry days: | 229 days |
| Days with rain: | 136 days |
| Days with snow: | 0 days |
| Total rain sum: | 472 mm |
| Hours of sunshine: | 2819 hours |
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Temperature graph
This graph shows the average maximum temperature (red) and minimum temperature (blue) for San Antonio.
Precipitation graph
This graph shows the average amount of rainfall per month for San Antonio.
Climate table of San Antonio
In this climate table you can see at a glance what the average weather per month is for San Antonio. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for San Antonio might be like in a given month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day temp. (°F) | 61 | 66 | 72 | 79 | 86 | 92 | 95 | 96 | 89 | 81 | 70 | 62 |
| Night temp. (°F) | 44 | 48 | 54 | 60 | 67 | 73 | 74 | 75 | 71 | 62 | 53 | 46 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Precipitation (inch) | 9 | 9 | 14 | 13 | 28 | 13 | 13 | 11 | 29 | 24 | 10 | 12 |
| Days with rain | 9 | 11 | 14 | 14 | 15 | 12 | 9 | 8 | 16 | 9 | 9 | 10 |
| Dry days | 22 | 17 | 17 | 16 | 16 | 18 | 22 | 23 | 14 | 22 | 21 | 21 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Sun hours per day | 6 | 7 | 7 | 8 | 8 | 10 | 11 | 10 | 9 | 7 | 5 | 5 |
| Wind force (Bft) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 3 | 3 | 3 |
| UV-index | 4 | 4 | 5 | 6 | 6 | 7 | 7 | 7 | 6 | 5 | 4 | 3 |
Best time to visit San Antonio
The best time to visit San Antonio in the state of Texas is from February through May and September through November. In this period you have a hot temperature and little precipitation. The highest average temperature in San Antonio is 96°F in August and the lowest is 61°F in January.
Climate of San Antonio by month
What is the average climate in a given month for San Antonio? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.
San Antonio weather experiences
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