San Antonio vs Austin: which is sunnier?
🇺🇸 United States vs 🇺🇸 United States · 107 km apart · long-term climate normals (NASA POWER, 2001–2020)
San Antonio and Austin are virtually tied for annual sunshine — about 2,599 vs 2,614 hours a year. San Antonio has the higher Sunshine Score in 4 of 12 months, Austin in 1 (7 within 2 points).
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| San Antonio | Austin | |
|---|---|---|
| Sunshine hours / year | 2,599 | 2,614 |
| Sunniest month | February (88/100) | November (83/100) |
| Nov–Feb average score | 77/100 | 69/100 |
| Jun–Aug average score | 55/100 | 57/100 |
| Rain / year | 779 mm | 842 mm |
| Peak midday UV | 10 (very high) | 10 (very high) |
San Antonio vs Austin month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| San Antonio | Austin | San Antonio | Austin | San Antonio | Austin | |
| January | 64 | 56 | 17° | 16° | 49 | 59 |
| February | 88 | 72 | 20° | 18° | 36 | 42 |
| March | 83 | 81 | 24° | 23° | 61 | 70 |
| April | 83 | 82 | 28° | 27° | 62 | 65 |
| May | 76 | 75 | 32° | 31° | 100 | 107 |
| June | 57 | 64 | 35° | 34° | 71 | 75 |
| July | 57 | 58 | 35° | 35° | 71 | 65 |
| August | 50 | 50 | 36° | 36° | 62 | 64 |
| September | 77 | 78 | 32° | 32° | 95 | 91 |
| October | 80 | 77 | 28° | 28° | 78 | 92 |
| November | 85 | 83 | 22° | 22° | 49 | 59 |
| December | 72 | 63 | 18° | 17° | 45 | 53 |
The sunnier month by month: Jan San Antonio · Feb San Antonio · Mar even · Apr even · May even · Jun Austin · Jul even · Aug even · Sep even · Oct San Antonio · Nov even · Dec San Antonio.
When to pick which
- November–February: San Antonio (average score 77/100 vs 69). Daytime highs are similar (19°C vs 18°C). See the winter sun ranking.
- March–May: too close to call — San Antonio averages 81/100, Austin 79/100. Daytime highs are similar (28°C vs 27°C).
- June–August: too close to call — San Antonio averages 55/100, Austin 57/100. Daytime highs are similar (35°C vs 35°C).
- September–October: too close to call — San Antonio averages 79/100, Austin 78/100. Daytime highs are similar (30°C vs 30°C).
Full month-by-month guides: San Antonio weather by month · Austin weather by month · Best time to visit United States.
More comparisons: San Antonio vs Houston · San Antonio vs Corpus Christi · San Antonio vs Killeen · Austin vs Houston · Austin vs Killeen · all head-to-heads