San Antonio weather in March
In March, San Antonio sees average daytime highs of 31°C and overnight lows near 25°C, with 29 mm of rain across 5.1 wet days and about 11.9 hours of daylight. It is the 3rd-warmest and 10th-wettest month of the year here.
Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 55% of the time in March, and the air most often feels oppressive.
Daylight stretches from about 11 h 42 min at the start of March to 12 h 06 min by month's end. Set against the rest of the year, March is San Antonio's 1st-clearest and 8th-windiest month. For the whole year in context, see San Antonio's year-round climate.
- Daytime high
- 31°
- 3rd warmest
- Overnight low
- 25°
- 4th coldest
- Rainfall
- 29 mm
- 5.1 wet days
- Daylight
- 11 h 54 min
- 6:12 AM – 6:06 PM
- Cloud cover
- 43%
- 1st clearest
- Wind
- 9 km/h
- 8th windiest
- Solar energy
- 6.14 kWh/m²
- Travel score
- 5.5
- out of 10
San Antonio is municipality of the Philippines in the province of Zambales.
- Density
- 205/km²
- people per km²
- Founded
- 1849
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in March
Day-to-day highs hold fairly steady near 31°C through the month.
A typical March day in San Antonio reaches about 31°C in the afternoon and slips back to 25°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°C. Set against its neighbours, March runs about 1°C warmer than February and about 1°C cooler than April.
| 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 (°C) | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 30 | 24 |
| 2 | 30 | 24 |
| 3 | 30 | 24 |
| 4 | 30 | 24 |
| 5 | 30 | 24 |
| 6 | 30 | 24 |
| 7 | 30 | 24 |
| 8 | 30 | 24 |
| 9 | 30 | 24 |
| 10 | 30 | 24 |
| 11 | 30 | 24 |
| 12 | 30 | 25 |
| 13 | 31 | 25 |
| 14 | 31 | 25 |
| 15 | 31 | 25 |
| 16 | 31 | 25 |
| 17 | 31 | 25 |
| 18 | 31 | 25 |
| 19 | 31 | 25 |
| 20 | 31 | 25 |
| 21 | 31 | 25 |
| 22 | 31 | 25 |
| 23 | 31 | 25 |
| 24 | 31 | 25 |
| 25 | 31 | 25 |
| 26 | 31 | 25 |
| 27 | 31 | 25 |
| 28 | 31 | 25 |
| 29 | 31 | 25 |
| 30 | 31 | 25 |
| 31 | 31 | 25 |
How March really feels in San Antonio
Once humidity and wind are folded in, March averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in March is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
San Antonio weather by month
How March compares with the rest of the year at a glance. March is the 3rd-warmest and 10th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 29° / 24° | 13 | 2.7 | 11.2 | 6.4 |
| Feb | 30° / 24° | 19 | 2.9 | 11.5 | 6.2 |
| Mar | 31° / 25° | 29 | 5.1 | 11.9 | 5.5 |
| Apr | 31° / 26° | 44 | 10.1 | 12.3 | 4.5 |
| May | 31° / 27° | 216 | 22.4 | 12.7 | 3.3 |
| Jun | 30° / 26° | 402 | 27 | 12.9 | 2.9 |
| Jul | 29° / 26° | 617 | 29.6 | 12.8 | 3.0 |
| Aug | 28° / 26° | 625 | 29.3 | 12.5 | 3.1 |
| Sep | 29° / 26° | 434 | 27.8 | 12.1 | 3.1 |
| Oct | 30° / 26° | 227 | 20.5 | 11.7 | 3.8 |
| Nov | 30° / 25° | 88 | 10.2 | 11.3 | 5.0 |
| Dec | 30° / 25° | 59 | 6.5 | 11.1 | 5.7 |
Cloud cover in March
The sky is clear or mostly clear about 55% of the time in March, the clearest month of the year.
Beyond those clear spells, partly cloudy skies cover about 21% of March, with mostly cloudy or overcast conditions the remaining 24%. Skies tend to open up as the month goes on.
| 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 (%) | 73 | 74 | 74 | 74 | 75 | 75 | 75 | 75 | 76 | 77 | 78 | 78 | 77 | 78 | 78 | 78 | 77 | 77 | 77 | 77 | 76 | 76 | 76 | 77 | 77 | 76 | 76 | 77 | 77 | 77 | 77 |
| Cloudier (%) | 27 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 24 | 23 | 22 | 22 | 23 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 24 | 24 | 23 | 23 | 23 | 23 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 73 | 27 |
| 2 | 74 | 26 |
| 3 | 74 | 26 |
| 4 | 74 | 26 |
| 5 | 75 | 25 |
| 6 | 75 | 25 |
| 7 | 75 | 25 |
| 8 | 75 | 25 |
| 9 | 76 | 24 |
| 10 | 77 | 23 |
| 11 | 78 | 22 |
| 12 | 78 | 22 |
| 13 | 77 | 23 |
| 14 | 78 | 22 |
| 15 | 78 | 22 |
| 16 | 78 | 22 |
| 17 | 77 | 23 |
| 18 | 77 | 23 |
| 19 | 77 | 23 |
| 20 | 77 | 23 |
| 21 | 76 | 24 |
| 22 | 76 | 24 |
| 23 | 76 | 24 |
| 24 | 77 | 23 |
| 25 | 77 | 23 |
| 26 | 76 | 24 |
| 27 | 76 | 24 |
| 28 | 77 | 23 |
| 29 | 77 | 23 |
| 30 | 77 | 23 |
| 31 | 77 | 23 |
Chance of precipitation in March
San Antonio gets around 29 mm of rain over 5.1 wet days in March. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 16% and peaks near 27% on the wettest days. The odds climb toward the end of the month.
| 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 (%) | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 15 | 16 | 16 | 17 | 18 | 19 | 20 | 21 | 23 | 24 | 25 | 26 | 27 |
| Rain chance (%) | |
|---|---|
| 1 | 12 |
| 2 | 12 |
| 3 | 12 |
| 4 | 12 |
| 5 | 12 |
| 6 | 13 |
| 7 | 13 |
| 8 | 13 |
| 9 | 13 |
| 10 | 13 |
| 11 | 13 |
| 12 | 13 |
| 13 | 13 |
| 14 | 13 |
| 15 | 13 |
| 16 | 14 |
| 17 | 14 |
| 18 | 14 |
| 19 | 15 |
| 20 | 16 |
| 21 | 16 |
| 22 | 17 |
| 23 | 18 |
| 24 | 19 |
| 25 | 20 |
| 26 | 21 |
| 27 | 23 |
| 28 | 24 |
| 29 | 25 |
| 30 | 26 |
| 31 | 27 |
Humidity in March
Most of March feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, March lands in the oppressive band about 68% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Humid (%) | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 |
| Muggy (%) | 37 | 36 | 35 | 34 | 33 | 32 | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 23 | 22 | 21 | 20 | 20 | 19 | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 15 | 14 | 14 | 13 | 13 |
| Oppressive (%) | 58 | 60 | 61 | 61 | 62 | 63 | 64 | 64 | 65 | 66 | 68 | 68 | 69 | 71 | 71 | 72 | 72 | 72 | 72 | 73 | 72 | 71 | 72 | 71 | 71 | 70 | 70 | 71 | 70 | 70 | 70 |
| Miserable (%) | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 10 | 10 | 11 | 12 | 13 | 14 | 14 | 15 | 16 | 17 |
| Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|
| 1 | 3 | 37 | 58 | 2 |
| 2 | 2 | 36 | 60 | 2 |
| 3 | 2 | 35 | 61 | 2 |
| 4 | 2 | 34 | 61 | 3 |
| 5 | 2 | 33 | 62 | 3 |
| 6 | 2 | 32 | 63 | 3 |
| 7 | 2 | 31 | 64 | 3 |
| 8 | 2 | 30 | 64 | 4 |
| 9 | 2 | 29 | 65 | 4 |
| 10 | 2 | 28 | 66 | 4 |
| 11 | 1 | 27 | 68 | 4 |
| 12 | 1 | 26 | 68 | 5 |
| 13 | 1 | 25 | 69 | 5 |
| 14 | 1 | 23 | 71 | 5 |
| 15 | 1 | 22 | 71 | 6 |
| 16 | 1 | 21 | 72 | 6 |
| 17 | 1 | 20 | 72 | 7 |
| 18 | 1 | 20 | 72 | 7 |
| 19 | 1 | 19 | 72 | 8 |
| 20 | 1 | 18 | 73 | 8 |
| 21 | 1 | 18 | 72 | 9 |
| 22 | 1 | 18 | 71 | 10 |
| 23 | 1 | 17 | 72 | 10 |
| 24 | 1 | 17 | 71 | 11 |
| 25 | 1 | 16 | 71 | 12 |
| 26 | 1 | 16 | 70 | 13 |
| 27 | 1 | 15 | 70 | 14 |
| 28 | 1 | 14 | 71 | 14 |
| 29 | 1 | 14 | 70 | 15 |
| 30 | 1 | 13 | 70 | 16 |
| 31 | 0 | 13 | 70 | 17 |
Wind in March
Winds average 9 km/h in March.
Across March, daily wind ranges from about 9 km/h on the calmest days to 9 km/h 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 (km/h) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| 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 (km/h) | Feels | |
|---|---|---|
| 1 | 9 | calm |
| 2 | 9 | calm |
| 3 | 9 | calm |
| 4 | 9 | calm |
| 5 | 9 | calm |
| 6 | 9 | calm |
| 7 | 9 | calm |
| 8 | 9 | calm |
| 9 | 9 | calm |
| 10 | 9 | calm |
| 11 | 9 | calm |
| 12 | 9 | calm |
| 13 | 9 | calm |
| 14 | 9 | calm |
| 15 | 9 | calm |
| 16 | 9 | calm |
| 17 | 9 | calm |
| 18 | 9 | calm |
| 19 | 9 | calm |
| 20 | 9 | calm |
| 21 | 9 | calm |
| 22 | 9 | calm |
| 23 | 9 | calm |
| 24 | 9 | calm |
| 25 | 9 | calm |
| 26 | 9 | calm |
| 27 | 9 | calm |
| 28 | 9 | calm |
| 29 | 9 | calm |
| 30 | 9 | calm |
| 31 | 9 | calm |
Sunrise & sunset in March
Daylight runs from about 11 h 42 min at the start of March to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 24 minutes over March. Sunrise moves from 6:22 AM to 6:01 AM, and sunset from 6:03 PM to 6:08 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) | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 |
| Sunrise (AM) | 6:22 | 6:22 | 6:21 | 6:21 | 6:20 | 6:19 | 6:19 | 6:18 | 6:17 | 6:17 | 6:16 | 6:15 | 6:15 | 6:14 | 6:13 | 6:12 | 6:12 | 6:11 | 6:10 | 6:10 | 6:09 | 6:08 | 6:07 | 6:07 | 6:06 | 6:05 | 6:04 | 6:04 | 6:03 | 6:02 | 6:01 |
| Sunset (PM) | 6:03 | 6:04 | 6:04 | 6:04 | 6:04 | 6:05 | 6:05 | 6:05 | 6:05 | 6:05 | 6:05 | 6:06 | 6:06 | 6:06 | 6:06 | 6:06 | 6:06 | 6:06 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:08 | 6:08 | 6:08 | 6:08 | 6:08 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.7 | 6:22 | 6:03 |
| 2 | 11.7 | 6:22 | 6:04 |
| 3 | 11.7 | 6:21 | 6:04 |
| 4 | 11.7 | 6:21 | 6:04 |
| 5 | 11.7 | 6:20 | 6:04 |
| 6 | 11.8 | 6:19 | 6:05 |
| 7 | 11.8 | 6:19 | 6:05 |
| 8 | 11.8 | 6:18 | 6:05 |
| 9 | 11.8 | 6:17 | 6:05 |
| 10 | 11.8 | 6:17 | 6:05 |
| 11 | 11.8 | 6:16 | 6:05 |
| 12 | 11.8 | 6:15 | 6:06 |
| 13 | 11.9 | 6:15 | 6:06 |
| 14 | 11.9 | 6:14 | 6:06 |
| 15 | 11.9 | 6:13 | 6:06 |
| 16 | 11.9 | 6:12 | 6:06 |
| 17 | 11.9 | 6:12 | 6:06 |
| 18 | 11.9 | 6:11 | 6:06 |
| 19 | 11.9 | 6:10 | 6:07 |
| 20 | 12.0 | 6:10 | 6:07 |
| 21 | 12.0 | 6:09 | 6:07 |
| 22 | 12.0 | 6:08 | 6:07 |
| 23 | 12.0 | 6:07 | 6:07 |
| 24 | 12.0 | 6:07 | 6:07 |
| 25 | 12.0 | 6:06 | 6:07 |
| 26 | 12.0 | 6:05 | 6:07 |
| 27 | 12.1 | 6:04 | 6:08 |
| 28 | 12.1 | 6:04 | 6:08 |
| 29 | 12.1 | 6:03 | 6:08 |
| 30 | 12.1 | 6:02 | 6:08 |
| 31 | 12.1 | 6:01 | 6:08 |
Solar energy in March
Average shortwave solar energy reaching the ground each day in March, about 6.14 kWh/m².
For context, solar energy here swings from a low near 4.16 kWh/m² to a high of 6.53 kWh/m² in April across the year — March's 6.14 kWh/m² sits near the top of that range.
| 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) | 5.8 | 5.8 | 5.9 | 5.9 | 5.9 | 6.0 | 6.0 | 6.0 | 6.0 | 6.1 | 6.1 | 6.1 | 6.1 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.4 | 6.4 | 6.4 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.8 | Bright |
| 2 | 5.8 | Bright |
| 3 | 5.9 | Bright |
| 4 | 5.9 | Bright |
| 5 | 5.9 | Bright |
| 6 | 6.0 | Bright |
| 7 | 6.0 | Bright |
| 8 | 6.0 | Intense |
| 9 | 6.0 | Intense |
| 10 | 6.1 | Intense |
| 11 | 6.1 | Intense |
| 12 | 6.1 | Intense |
| 13 | 6.1 | Intense |
| 14 | 6.2 | Intense |
| 15 | 6.2 | Intense |
| 16 | 6.2 | Intense |
| 17 | 6.2 | Intense |
| 18 | 6.2 | Intense |
| 19 | 6.2 | Intense |
| 20 | 6.3 | Intense |
| 21 | 6.3 | Intense |
| 22 | 6.3 | Intense |
| 23 | 6.3 | Intense |
| 24 | 6.3 | Intense |
| 25 | 6.3 | Intense |
| 26 | 6.3 | Intense |
| 27 | 6.3 | Intense |
| 28 | 6.3 | Intense |
| 29 | 6.4 | Intense |
| 30 | 6.4 | Intense |
| 31 | 6.4 | Intense |
Hazard calendar for San Antonio
In March, San Antonio sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
San Antonio sits in the Pacific typhoon belt; the season peaks July–October.
San Antonio's monsoon runs June–September, when most of the year's rain falls.
Is March a good time to visit San Antonio?
Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
March is a reasonable time to visit San Antonio for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for San Antonio in March
From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In March, San Antonio sees daytime highs around 31°C and nights near 25°C. Pack light clothes and sun protection. About 5 days see rain.
Sea temperature near San Antonio in March
The nearest coast averages about 28°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in May at about 30°C and coldest in February near 27°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 27 | 28 | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 28 |
| Comfort | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 28 | Warm |
| Apr | 29 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Tropical |
UV index in San Antonio in March
Clear-sky midday UV in March peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in San Antonio peaks around August 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 at about 8 (very high).
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) | 10 | 11 | 13 | 13 | 12 | 12 | 12 | 14 | 12 | 11 | 9 | 8 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 14 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 8 | Very high |
Air quality in San Antonio in March
Average fine-particle pollution (PM2.5) through the year — so you can see where March falls, not just the annual average.
Air quality in San Antonio is worst in November — around 30 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 27 | 26 | 29 | 28 | 23 | 22 | 21 | 21 | 22 | 29 | 30 | 29 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 27 | Moderate |
| Feb | 26 | Moderate |
| Mar | 29 | Moderate |
| Apr | 28 | Moderate |
| May | 23 | Moderate |
| Jun | 22 | Moderate |
| Jul | 21 | Moderate |
| Aug | 21 | Moderate |
| Sep | 22 | Moderate |
| Oct | 29 | Moderate |
| Nov | 30 | Moderate |
| Dec | 29 | Moderate |
Where is San Antonio?
San Antonio sits at 14.9°N, 120.1°E, 16 m above sea level, in Philippines. The nearest listed city is San Narciso, 8.0 km away.
Topography around San Antonio
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Antonio.
Within 3 km, the terrain around San Antonio has significant variations in elevation — a maximum elevation change of 398 m around an average of 40 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,081 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,021 m.
The land around San Antonio is covered by trees (50%), grassland (22%) and cropland (21%) within 3 km, water (42%), trees (23%) and grassland (20%) within 16 km, and water (47%) and trees (32%) within 80 km.
Philippines travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B / C
- 230 V · 60 Hz
- Prices
- ≈ 33% of US
- price level, 2025
- GDP per capita
- $4,171
- 2025
- Happiness
- 6.2 / 10
- World Happiness, 2025
- Safe drinking water
- 48%
- of population, 2024
- Homicide rate
- 4.3
- per 100k, 2023
- Road deaths
- 12
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- High
- EF EPI 569
- 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 (14.9466°, 120.0867°, elevation 16 m), 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).