San Antonio weather in January
In January, San Antonio sees average daytime highs of 62°F and overnight lows near 43°F, with 2.2 in of rain across 7.2 wet days and about 10.3 hours of daylight. It is the 12th-warmest and 10th-wettest month of the year here.
Day-to-day highs hold fairly steady near 62°F through the month. The sky is clear or mostly clear about 38% of the time in January, and the air most often feels dry.
Daylight stretches from about 10 h 06 min at the start of January to 10 h 36 min by month's end. Set against the rest of the year, January is San Antonio's 8th-clearest and 6th-windiest month. For the whole year in context, see San Antonio's year-round climate.
- Daytime high
- 62°
- 12th warmest
- Overnight low
- 43°
- 1st coldest
- Rainfall
- 2.2 in
- 7.2 wet days
- Daylight
- 10 h 18 min
- 7:34 AM – 5:52 PM
- Cloud cover
- 54%
- 8th clearest
- Wind
- 7 mph
- 6th windiest
- Solar energy
- 3.03 kWh/m²
- Travel score
- 5.8
- out of 10
San Antonio is city in Bexar, Comal, and Medina counties in Texas, United States; seat of Bexar County.
- Density
- 1,263/km²
- people per km²
- Founded
- 1718
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in January
Day-to-day highs hold fairly steady near 62°F through the month.
A typical January day in San Antonio reaches about 62°F in the afternoon and slips back to 43°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 48°F and 74°F. Set against its neighbours, January runs about 1°F cooler than December and about 4°F cooler than February.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 64 | 64 | 64 |
| Avg low (°F) | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 44 | 44 | 44 | 44 | 44 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 62 | 42 |
| 2 | 62 | 42 |
| 3 | 62 | 42 |
| 4 | 62 | 42 |
| 5 | 62 | 42 |
| 6 | 62 | 42 |
| 7 | 62 | 42 |
| 8 | 62 | 42 |
| 9 | 62 | 42 |
| 10 | 62 | 42 |
| 11 | 62 | 42 |
| 12 | 62 | 42 |
| 13 | 62 | 42 |
| 14 | 62 | 42 |
| 15 | 62 | 42 |
| 16 | 62 | 43 |
| 17 | 62 | 43 |
| 18 | 62 | 43 |
| 19 | 62 | 43 |
| 20 | 63 | 43 |
| 21 | 63 | 43 |
| 22 | 63 | 43 |
| 23 | 63 | 43 |
| 24 | 63 | 43 |
| 25 | 63 | 43 |
| 26 | 63 | 43 |
| 27 | 63 | 44 |
| 28 | 63 | 44 |
| 29 | 64 | 44 |
| 30 | 64 | 44 |
| 31 | 64 | 44 |
How January really feels in San Antonio
Once humidity and wind are folded in, January averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
San Antonio weather by month
How January compares with the rest of the year at a glance. January is the 12th-warmest and 10th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 62° / 43° | 2.2 | 7.2 | 10.3 | 5.8 |
| Feb | 67° / 46° | 2.3 | 7.4 | 10.9 | 6.5 |
| Mar | 73° / 53° | 3.1 | 9.2 | 11.8 | 6.9 |
| Apr | 80° / 59° | 3.1 | 8.5 | 12.7 | 6.8 |
| May | 86° / 67° | 4.1 | 11.2 | 13.5 | 5.0 |
| Jun | 91° / 73° | 2.7 | 9.5 | 13.8 | 3.6 |
| Jul | 94° / 74° | 2.0 | 6.2 | 13.7 | 3.1 |
| Aug | 95° / 74° | 1.9 | 5.8 | 13.1 | 2.8 |
| Sep | 89° / 70° | 3.0 | 8.6 | 12.2 | 4.3 |
| Oct | 81° / 61° | 3.3 | 7.7 | 11.3 | 6.8 |
| Nov | 71° / 51° | 2.6 | 7.2 | 10.5 | 7.1 |
| Dec | 64° / 44° | 2.5 | 7.5 | 10.1 | 6.1 |
Cloud cover in January
The sky is clear or mostly clear about 38% of the time in January.
Beyond those clear spells, partly cloudy skies cover about 11% of January, with mostly cloudy or overcast conditions the remaining 52%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 47 | 47 | 48 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 48 | 49 | 49 | 48 | 49 | 49 | 50 | 49 | 49 | 50 | 50 | 50 | 50 | 49 | 49 | 49 | 49 | 49 | 49 |
| Cloudier (%) | 53 | 53 | 52 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 52 | 51 | 51 | 52 | 51 | 51 | 50 | 51 | 51 | 50 | 50 | 50 | 50 | 51 | 51 | 51 | 51 | 51 | 51 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 47 | 53 |
| 2 | 47 | 53 |
| 3 | 48 | 52 |
| 4 | 47 | 53 |
| 5 | 47 | 53 |
| 6 | 47 | 53 |
| 7 | 47 | 53 |
| 8 | 47 | 53 |
| 9 | 47 | 53 |
| 10 | 47 | 53 |
| 11 | 47 | 53 |
| 12 | 47 | 53 |
| 13 | 48 | 52 |
| 14 | 49 | 51 |
| 15 | 49 | 51 |
| 16 | 48 | 52 |
| 17 | 49 | 51 |
| 18 | 49 | 51 |
| 19 | 50 | 50 |
| 20 | 49 | 51 |
| 21 | 49 | 51 |
| 22 | 50 | 50 |
| 23 | 50 | 50 |
| 24 | 50 | 50 |
| 25 | 50 | 50 |
| 26 | 49 | 51 |
| 27 | 49 | 51 |
| 28 | 49 | 51 |
| 29 | 49 | 51 |
| 30 | 49 | 51 |
| 31 | 49 | 51 |
Chance of precipitation in January
San Antonio gets around 2.2 in of rain over 7.2 wet days in January. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 23% and peaks near 24% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Rain chance (%) | |
|---|---|
| 1 | 23 |
| 2 | 23 |
| 3 | 23 |
| 4 | 22 |
| 5 | 22 |
| 6 | 22 |
| 7 | 22 |
| 8 | 22 |
| 9 | 22 |
| 10 | 22 |
| 11 | 22 |
| 12 | 22 |
| 13 | 22 |
| 14 | 22 |
| 15 | 22 |
| 16 | 23 |
| 17 | 23 |
| 18 | 23 |
| 19 | 23 |
| 20 | 23 |
| 21 | 24 |
| 22 | 24 |
| 23 | 24 |
| 24 | 24 |
| 25 | 24 |
| 26 | 24 |
| 27 | 24 |
| 28 | 24 |
| 29 | 24 |
| 30 | 24 |
| 31 | 24 |
Humidity in January
Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, January lands in the dry band about 87% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 87 | 86 | 87 | 87 | 86 | 87 | 87 | 87 | 87 | 87 | 87 | 89 | 89 | 88 | 88 | 88 | 88 | 88 | 87 | 87 | 88 | 88 | 88 | 87 | 87 | 87 | 87 | 87 | 86 | 85 | 85 |
| Comfortable (%) | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Humid (%) | 4 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 |
| Muggy (%) | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 87 | 7 | 4 | 2 |
| 2 | 86 | 7 | 5 | 2 |
| 3 | 87 | 7 | 5 | 1 |
| 4 | 87 | 7 | 5 | 1 |
| 5 | 86 | 7 | 6 | 1 |
| 6 | 87 | 6 | 6 | 1 |
| 7 | 87 | 6 | 6 | 1 |
| 8 | 87 | 6 | 6 | 1 |
| 9 | 87 | 6 | 6 | 1 |
| 10 | 87 | 6 | 6 | 1 |
| 11 | 87 | 6 | 6 | 1 |
| 12 | 89 | 6 | 5 | 0 |
| 13 | 89 | 6 | 5 | 0 |
| 14 | 88 | 7 | 5 | 0 |
| 15 | 88 | 7 | 5 | 0 |
| 16 | 88 | 7 | 5 | 0 |
| 17 | 88 | 7 | 4 | 1 |
| 18 | 88 | 7 | 4 | 1 |
| 19 | 87 | 8 | 4 | 1 |
| 20 | 87 | 8 | 4 | 1 |
| 21 | 88 | 8 | 3 | 1 |
| 22 | 88 | 8 | 3 | 1 |
| 23 | 88 | 8 | 3 | 1 |
| 24 | 87 | 9 | 3 | 1 |
| 25 | 87 | 9 | 3 | 1 |
| 26 | 87 | 9 | 3 | 1 |
| 27 | 87 | 9 | 3 | 1 |
| 28 | 87 | 9 | 3 | 1 |
| 29 | 86 | 9 | 4 | 1 |
| 30 | 85 | 9 | 4 | 2 |
| 31 | 85 | 9 | 4 | 2 |
Wind in January
Winds average 7 mph in January.
Across January, daily wind ranges from about 7 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 7 | calm |
| 2 | 7 | calm |
| 3 | 7 | calm |
| 4 | 7 | calm |
| 5 | 7 | calm |
| 6 | 7 | calm |
| 7 | 7 | calm |
| 8 | 7 | calm |
| 9 | 7 | calm |
| 10 | 7 | calm |
| 11 | 7 | calm |
| 12 | 7 | calm |
| 13 | 7 | calm |
| 14 | 7 | calm |
| 15 | 7 | calm |
| 16 | 7 | calm |
| 17 | 7 | calm |
| 18 | 7 | calm |
| 19 | 7 | calm |
| 20 | 7 | calm |
| 21 | 7 | calm |
| 22 | 7 | calm |
| 23 | 7 | calm |
| 24 | 7 | calm |
| 25 | 7 | calm |
| 26 | 7 | calm |
| 27 | 7 | calm |
| 28 | 7 | calm |
| 29 | 7 | calm |
| 30 | 7 | calm |
| 31 | 7 | calm |
Sunrise & sunset in January
Daylight runs from about 10 h 06 min at the start of January to 10 h 36 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 30 minutes over January. Sunrise moves from 7:33 AM to 7:30 AM, and sunset from 5:41 PM to 6:05 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 10.1 | 10.2 | 10.2 | 10.2 | 10.2 | 10.2 | 10.2 | 10.2 | 10.2 | 10.2 | 10.2 | 10.3 | 10.3 | 10.3 | 10.3 | 10.3 | 10.3 | 10.3 | 10.4 | 10.4 | 10.4 | 10.4 | 10.4 | 10.4 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.6 | 10.6 |
| Sunrise (AM) | 7:33 | 7:33 | 7:33 | 7:33 | 7:34 | 7:34 | 7:34 | 7:34 | 7:34 | 7:34 | 7:34 | 7:34 | 7:34 | 7:34 | 7:34 | 7:34 | 7:34 | 7:34 | 7:34 | 7:33 | 7:33 | 7:33 | 7:33 | 7:32 | 7:32 | 7:32 | 7:31 | 7:31 | 7:31 | 7:30 | 7:30 |
| Sunset (PM) | 5:41 | 5:42 | 5:43 | 5:43 | 5:44 | 5:45 | 5:46 | 5:46 | 5:47 | 5:48 | 5:49 | 5:49 | 5:50 | 5:51 | 5:52 | 5:52 | 5:53 | 5:54 | 5:55 | 5:56 | 5:57 | 5:57 | 5:58 | 5:59 | 6:00 | 6:01 | 6:01 | 6:02 | 6:03 | 6:04 | 6:05 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.1 | 7:33 | 5:41 |
| 2 | 10.2 | 7:33 | 5:42 |
| 3 | 10.2 | 7:33 | 5:43 |
| 4 | 10.2 | 7:33 | 5:43 |
| 5 | 10.2 | 7:34 | 5:44 |
| 6 | 10.2 | 7:34 | 5:45 |
| 7 | 10.2 | 7:34 | 5:46 |
| 8 | 10.2 | 7:34 | 5:46 |
| 9 | 10.2 | 7:34 | 5:47 |
| 10 | 10.2 | 7:34 | 5:48 |
| 11 | 10.2 | 7:34 | 5:49 |
| 12 | 10.3 | 7:34 | 5:49 |
| 13 | 10.3 | 7:34 | 5:50 |
| 14 | 10.3 | 7:34 | 5:51 |
| 15 | 10.3 | 7:34 | 5:52 |
| 16 | 10.3 | 7:34 | 5:52 |
| 17 | 10.3 | 7:34 | 5:53 |
| 18 | 10.3 | 7:34 | 5:54 |
| 19 | 10.4 | 7:34 | 5:55 |
| 20 | 10.4 | 7:33 | 5:56 |
| 21 | 10.4 | 7:33 | 5:57 |
| 22 | 10.4 | 7:33 | 5:57 |
| 23 | 10.4 | 7:33 | 5:58 |
| 24 | 10.4 | 7:32 | 5:59 |
| 25 | 10.5 | 7:32 | 6:00 |
| 26 | 10.5 | 7:32 | 6:01 |
| 27 | 10.5 | 7:31 | 6:01 |
| 28 | 10.5 | 7:31 | 6:02 |
| 29 | 10.5 | 7:31 | 6:03 |
| 30 | 10.6 | 7:30 | 6:04 |
| 31 | 10.6 | 7:30 | 6:05 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 3.03 kWh/m².
For context, solar energy here swings from a low near 2.72 kWh/m² to a high of 6.71 kWh/m² in July across the year — January's 3.03 kWh/m² sits near the bottom.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 2.8 | 2.8 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.1 | 3.1 | 3.1 | 3.1 | 3.1 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.3 | 3.3 | 3.3 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 2.8 | Moderate |
| 2 | 2.8 | Moderate |
| 3 | 2.9 | Moderate |
| 4 | 2.9 | Moderate |
| 5 | 2.9 | Moderate |
| 6 | 2.9 | Moderate |
| 7 | 2.9 | Moderate |
| 8 | 2.9 | Moderate |
| 9 | 2.9 | Moderate |
| 10 | 2.9 | Moderate |
| 11 | 3.0 | Moderate |
| 12 | 3.0 | Moderate |
| 13 | 3.0 | Moderate |
| 14 | 3.0 | Moderate |
| 15 | 3.0 | Moderate |
| 16 | 3.0 | Moderate |
| 17 | 3.0 | Moderate |
| 18 | 3.0 | Moderate |
| 19 | 3.1 | Moderate |
| 20 | 3.1 | Moderate |
| 21 | 3.1 | Moderate |
| 22 | 3.1 | Moderate |
| 23 | 3.1 | Moderate |
| 24 | 3.2 | Moderate |
| 25 | 3.2 | Moderate |
| 26 | 3.2 | Moderate |
| 27 | 3.2 | Moderate |
| 28 | 3.2 | Moderate |
| 29 | 3.3 | Moderate |
| 30 | 3.3 | Moderate |
| 31 | 3.3 | Moderate |
Is January a good time to visit San Antonio?
Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
January is a reasonable time to visit San Antonio for sightseeing.
What to pack for San Antonio in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, San Antonio sees daytime highs around 62°F and nights near 43°F. Worth packing: a warm layer. About 7 days see rain.
UV index in San Antonio in January
Clear-sky midday UV in January peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in San Antonio peaks around August 11 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 4 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 4 | 6 | 7 | 10 | 10 | 11 | 11 | 11 | 9 | 6 | 5 | 4 |
| Level | Moderate | High | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Very high | High | High | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 6 | High |
| Mar | 7 | Very high |
| Apr | 10 | Very high |
| May | 10 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 9 | Very high |
| Oct | 6 | High |
| Nov | 5 | High |
| Dec | 4 | Moderate |
Air quality in San Antonio in January
Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.
Air quality in San Antonio is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (October, 6 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 7 | 7 | 9 | 10 | 15 | 15 | 18 | 12 | 10 | 6 | 6 | 7 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 7 | Good |
| Feb | 7 | Good |
| Mar | 9 | Good |
| Apr | 10 | Good |
| May | 15 | Moderate |
| Jun | 15 | Moderate |
| Jul | 18 | Moderate |
| Aug | 12 | Good |
| Sep | 10 | Good |
| Oct | 6 | Good |
| Nov | 6 | Good |
| Dec | 7 | Good |
Where is San Antonio?
San Antonio sits at 29.4°N, 98.5°W, 650 ft above sea level, in United States. The nearest listed city is Converse, 12 mi away.
Topography around San Antonio
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of San Antonio.
Within 2 miles, the terrain around San Antonio has only modest variations in elevation — a maximum elevation change of 174 ft around an average of 669 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 607 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,827 ft.
The land around San Antonio is covered by artificial surfaces (75%) within 2 miles, trees (38%), artificial surfaces (38%) and grassland (20%) within 10 miles, and trees (50%) and grassland (38%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for San Antonio (29.4241°, -98.4936°, elevation 650 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).