Temperature
Warm by day, mild at night.
82°Ftypical July high
Typical range
Warm days and plenty of sun.

Warm by day, mild at night.
Several rainy days. About 11 wet days, fewer than in most months.
Plenty of sun this month.
Warm days, with humid periods.
In July, afternoons feel about 83° and nights feel near 74°.
Mostly clear skies this month.
Calm winds are typical in July.
July late afternoons are around 81°F, easing to about 79°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 48 | 40 | 6.0 | 12 | 5.8 | 79 | 55 |
| Feb | 50 | 40 | 5.7 | 11 | 7.3 | 76 | 53 |
| Mar | 55 | 45 | 5.7 | 12 | 9.1 | 74 | 53 |
| Apr | 62 | 51 | 5.2 | 12 | 10.5 | 74 | 57 |
| May | 70 | 59 | 5.5 | 13 | 11.9 | 75 | 65 |
| Jun | 78 | 67 | 3.9 | 10 | 13.0 | 73 | 73 |
| Jul | 82 | 70 | 4.0 | 11 | 13.3 | 72 | 77 |
| Aug | 82 | 70 | 4.5 | 10 | 12.4 | 73 | 78 |
| Sep | 73 | 63 | 8.8 | 12 | 10.0 | 77 | 74 |
| Oct | 65 | 56 | 9.7 | 14 | 8.1 | 81 | 68 |
| Nov | 57 | 49 | 10.7 | 15 | 6.1 | 81 | 64 |
| Dec | 50 | 42 | 7.3 | 12 | 5.4 | 80 | 59 |
Similar climates
Want a side-by-side climate view? Compare Opatija with Alghero.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 26, 2026
Data & methodology