San Antonio Weather in August
San Antonio in August
The short of it: San Antonio in August averages a high of 17 °C (63 °F) and a low of 8 °C (47 °F), with 62 mm (2.4 in) of rain and about 10 h 53 min of daylight. Rated 4 of 5 for a visit; the best months are November and March. Source: TerraClimate climate normals, 1991–2020.
Average high 17° · low 8° · rain 62 mm · daylight 10 h 53 min
✦✦✦✦ Recommended for a visit · best months: November & March
August in San Antonio brings afternoons near 17° and nights around 8°, with about 62 mm of rain over the month. Much like July: highs about 17°, nights near 8°. A wool coat will serve you well. Wet spells are common — about 62 mm, the 3rd wettest month.
The sun is up for about 10 h 53 min in mid-August, 46 minutes more than a month before.
For the traveller: pack layers, a wool coat and stout boots, and an oilskin besides. The Almanac rates August 4 of 5 for a visit; the finest months here are November and March.
Against its neighbours, San Antonio runs warmer than most and drier than most in August. Cartagena, 5 km to the N, sees much the same highs.
August in San Antonio, by the numbers
- Warmth rank
- 10th warmest of 12
- Rain rank
- 3rd wettest of 12
- Versus July
- 1° warmer, 13 mm less rain
- Versus September
- 2° colder
- Day–night spread
- 9°
- Snow season
- seldom any
- Daylight, mid-month
- 10 h 53 min
- Average wind
- 10 km/h
Neighbouring Towns
August averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| CartagenaValparaiso | 5 km N | 17° | 8° | 65 mm |
| Santo DomingoValparaiso | 5 km SSW | 17° | 9° | 60 mm |
| El TaboValparaiso | 16 km NNW | 16° | 9° | 66 mm |
| El QuiscoValparaiso | 23 km NNW | 16° | 8° | 68 mm |
| AlgarroboValparaiso | 26 km NNW | 16° | 9° | 67 mm |
| CasablancaValparaiso | 36 km NNE | 16° | 7° | 83 mm |
| MelipillaSantiago Metropolitan | 38 km ESE | 17° | 7° | 64 mm |
| María PintoSantiago Metropolitan | 46 km E | 17° | 7° | 66 mm |