When to go · United States
When to go to San Antonio
Alamo Mission · Photo: Zygmunt Put Zetpe0202 · CC BY-SA 4.0 · Wikimedia Commons
When to go
What the averages say
On these averages, San Antonio has a mean high between 18°C and 32°C and under 150 mm of rain in February to May, October and November.
Of those months, it is also dry (under 50 mm of rain) and not humid in February and November.
- Hot months (a mean high of 32°C or more): June to September.
- The warmest month is August (36°C) and the coolest January (16°C). The wettest is May (100 mm) and the driest February (36 mm); about 779 mm of rain falls in a year.
How these sentences are worded
Each sentence is written from the figures by fixed rules, and says no more than they do. Mild to warm: a mean daily high from 18°C up to 32°C. Hot: 32°C or more. Cool: 10°C up to 18°C. Cold: under 10°C. Dry: under 50 mm of rain in the month; wet: 150 mm or more. Humid: a high of 25°C or more with relative humidity of 70% or more. A month is described as good for going when it is mild to warm and not wet.
The year at a glance
- Mild to warm and dry
- Mild to warm, humid or showery
- Hot
- Cool
- Wet
- Cold
- JanCool
- FebMild–warm, dry
- MarMild–warm, mixed
- AprMild–warm, mixed
- MayMild–warm, mixed
- JunHot
- JulHot
- AugHot
- SeptHot
- OctMild–warm, mixed
- NovMild–warm, dry
- DecCool
Month by month
Every month in San Antonio
| Month | High | Low | Rain | Humidity | Cloud | Sunlight (kWh/m²/day) | High in Dubai | What it is like |
|---|---|---|---|---|---|---|---|---|
| January | 16°C | 4°C | 49 mm | 70% | 55% | 3.1 | 23°C | Cool |
| February | 19°C | 6°C | 36 mm | 70% | 60% | 3.6 | 24°C | Mild to warm and dry |
| March | 24°C | 10°C | 61 mm | 70% | 61% | 4.5 | 27°C | Mild to warm, humid or showery |
| April | 28°C | 14°C | 62 mm | 66% | 60% | 5.4 | 31°C | Mild to warm, humid or showery |
| May | 31°C | 19°C | 100 mm | 68% | 60% | 5.9 | 35°C | Mild to warm, humid or showery |
| June | 34°C | 22°C | 71 mm | 65% | 46% | 6.7 | 37°C | Hot |
| July | 35°C | 23°C | 71 mm | 65% | 44% | 6.7 | 39°C | Hot |
| August | 36°C | 24°C | 62 mm | 61% | 41% | 6.4 | 39°C | Hot |
| September | 32°C | 20°C | 95 mm | 68% | 46% | 5.2 | 37°C | Hot |
| October | 28°C | 15°C | 78 mm | 68% | 41% | 4.4 | 34°C | Mild to warm, humid or showery |
| November | 22°C | 10°C | 49 mm | 70% | 50% | 3.3 | 29°C | Mild to warm and dry |
| December | 17°C | 5°C | 45 mm | 69% | 55% | 2.8 | 25°C | Cool |
The Dubai column is Dubai's mean daily high, for comparison.
Modelled averages for an area about 50 km across, not a weather station's record: NASA POWER climatology, 2001–2020. These data were obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program.
When to go nearby
When to go nearby
- Austin118 kmGood for going: February to May, October and November
- Corpus Christi210 kmGood for going: October to May
- Laredo235 kmGood for going: October to March
- Nuevo Laredo239 kmGood for going: October to March
- Houston305 kmGood for going: February to May, October and November
- Reynosa372 kmGood for going: October to March
- Fort Worth384 kmGood for going: March to May, October and November
- Arlington391 kmGood for going: March to May, October and November
Plan it
Plan a trip to San Antonio
Tell us when and who is travelling, and a person puts the flights, the stays and the rest into one quote.