Ontario vs Santa Barbara: which is sunnier?
🇺🇸 United States vs 🇺🇸 United States · 210 km apart · long-term climate normals (NASA POWER, 2001–2020)
Ontario is the sunnier overall: about 3,804 hours of sunshine a year to Santa Barbara's 3,525. Month by month it's balanced: each has the higher Sunshine Score in 4 months, with 4 within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Ontario | Santa Barbara | |
|---|---|---|
| Sunshine hours / year | 3,804 | 3,525 |
| Sunniest month | May (99/100) | July (100/100) |
| Nov–Feb average score | 85/100 | 73/100 |
| Jun–Aug average score | 70/100 | 100/100 |
| Rain / year | 290 mm | 404 mm |
| Peak midday UV | 10 (very high) | 10 (very high) |
Ontario vs Santa Barbara month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Ontario | Santa Barbara | Ontario | Santa Barbara | Ontario | Santa Barbara | |
| January | 82 | 70 | 19° | 18° | 58 | 90 |
| February | 88 | 64 | 20° | 17° | 63 | 78 |
| March | 94 | 81 | 22° | 19° | 32 | 63 |
| April | 97 | 95 | 25° | 20° | 18 | 27 |
| May | 99 | 98 | 28° | 23° | 7 | 11 |
| June | 90 | 99 | 33° | 26° | 1 | 3 |
| July | 59 | 100 | 36° | 28° | 5 | 2 |
| August | 60 | 100 | 36° | 28° | 3 | 1 |
| September | 79 | 99 | 34° | 28° | 5 | 3 |
| October | 97 | 96 | 29° | 25° | 16 | 22 |
| November | 96 | 94 | 23° | 21° | 24 | 32 |
| December | 74 | 65 | 18° | 17° | 58 | 72 |
The sunnier month by month: Jan Ontario · Feb Ontario · Mar Ontario · Apr even · May even · Jun Santa Barbara · Jul Santa Barbara · Aug Santa Barbara · Sep Santa Barbara · Oct even · Nov even · Dec Ontario.
When to pick which
- November–February: Ontario (average score 85/100 vs 73). Ontario is the warmer, around 20°C daytime highs vs 18°C. See the winter sun ranking.
- March–May: Ontario (average score 97/100 vs 91). Ontario is the warmer, around 25°C daytime highs vs 21°C.
- June–August: Santa Barbara (average score 100/100 vs 70). Ontario is the warmer, around 35°C daytime highs vs 27°C.
- September–October: Santa Barbara (average score 98/100 vs 88). Ontario is the warmer, around 32°C daytime highs vs 27°C.
Full month-by-month guides: Ontario weather by month · Santa Barbara weather by month · Best time to visit United States.
More comparisons: Ontario vs Los Angeles · Ontario vs San Diego · Ontario vs Palm Springs · Santa Barbara vs Los Angeles · Santa Barbara vs San Luis Obispo · all head-to-heads