Liverpool vs Castletown: which is sunnier?
🇬🇧 United Kingdom vs 🇮🇲 Isle of Man · 143 km apart · long-term climate normals (NASA POWER, 2001–2020)
Liverpool and Castletown are virtually tied for annual sunshine — about 1,453 vs 1,459 hours a year. Liverpool has the higher Sunshine Score in 7 of 12 months, Castletown in 2 (3 within 2 points).
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Liverpool | Castletown | |
|---|---|---|
| Sunshine hours / year | 1,453 | 1,459 |
| Sunniest month | July (65/100) | July (48/100) |
| Nov–Feb average score | 3/100 | 5/100 |
| Jun–Aug average score | 61/100 | 44/100 |
| Rain / year | 981 mm | 1,123 mm |
| Warmest sea | 19°C / 66°F | 16°C / 61°F |
| Peak midday UV | 5 (moderate) | 5 (moderate) |
Liverpool vs Castletown month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Liverpool | Castletown | Liverpool | Castletown | Liverpool | Castletown | Liverpool | Castletown | |
| January | 0 | 0 | 7° | 8° | 87 | 110 | 5° | 10° |
| February | 0 | 0 | 7° | 8° | 72 | 89 | 6° | 9° |
| March | 6 | 0 | 9° | 8° | 66 | 82 | 8° | 9° |
| April | 26 | 6 | 12° | 9° | 56 | 62 | 11° | 10° |
| May | 44 | 25 | 15° | 12° | 64 | 65 | 15° | 12° |
| June | 54 | 37 | 17° | 14° | 78 | 74 | 17° | 13° |
| July | 65 | 48 | 19° | 16° | 86 | 79 | 18° | 15° |
| August | 64 | 46 | 19° | 16° | 91 | 97 | 19° | 16° |
| September | 54 | 41 | 17° | 15° | 80 | 90 | 16° | 15° |
| October | 34 | 32 | 14° | 14° | 98 | 123 | 13° | 14° |
| November | 11 | 16 | 10° | 11° | 101 | 126 | 10° | 13° |
| December | 0 | 5 | 8° | 9° | 102 | 126 | 7° | 11° |
The sunnier month by month: Jan even · Feb even · Mar Liverpool · Apr Liverpool · May Liverpool · Jun Liverpool · Jul Liverpool · Aug Liverpool · Sep Liverpool · Oct even · Nov Castletown · Dec Castletown.
When to pick which
- November–February: too close to call — Liverpool averages 3/100, Castletown 5/100. Daytime highs are similar (8°C vs 9°C). See the winter sun ranking.
- March–May: Liverpool (average score 25/100 vs 10). Liverpool is the warmer, around 12°C daytime highs vs 10°C.
- June–August: Liverpool (average score 61/100 vs 44). Liverpool is the warmer, around 18°C daytime highs vs 15°C.
- September–October: Liverpool (average score 44/100 vs 37). Daytime highs are similar (16°C vs 15°C).
Sea temperature
Liverpool's sea gets warmer: 19°C / 66°F at its peak vs 16°C. Swimmable water (21°C+): Liverpool never, Castletown never. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Liverpool weather by month · Castletown weather by month · Best time to visit United Kingdom.
More comparisons: Liverpool vs Birmingham · Liverpool vs Manchester · Liverpool vs Leeds · Castletown vs Dublin · Castletown vs Belfast · all head-to-heads