Shannon vs Charlestown: which is sunnier?
🇮🇪 Ireland vs 🇮🇪 Ireland · 135 km apart · long-term climate normals (NASA POWER, 2001–2020)
Shannon and Charlestown are virtually tied for annual sunshine — about 1,468 vs 1,412 hours a year. Shannon has the higher Sunshine Score in 11 of 12 months; the other 1 is within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Shannon | Charlestown | |
|---|---|---|
| Sunshine hours / year | 1,468 | 1,412 |
| Sunniest month | July (64/100) | July (50/100) |
| Nov–Feb average score | 7/100 | 1/100 |
| Jun–Aug average score | 63/100 | 48/100 |
| Rain / year | 1,091 mm | 1,289 mm |
| Peak midday UV | 5 (moderate) | 5 (moderate) |
Shannon vs Charlestown month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Shannon | Charlestown | Shannon | Charlestown | Shannon | Charlestown | |
| January | 0 | 0 | 8° | 6° | 104 | 123 |
| February | 6 | 0 | 9° | 6° | 81 | 96 |
| March | 12 | 0 | 10° | 8° | 77 | 92 |
| April | 31 | 18 | 13° | 11° | 68 | 76 |
| May | 49 | 29 | 16° | 13° | 76 | 93 |
| June | 60 | 45 | 18° | 16° | 83 | 100 |
| July | 64 | 50 | 19° | 17° | 92 | 111 |
| August | 64 | 48 | 19° | 17° | 96 | 120 |
| September | 54 | 40 | 17° | 15° | 82 | 99 |
| October | 34 | 22 | 14° | 12° | 101 | 119 |
| November | 16 | 5 | 11° | 9° | 119 | 131 |
| December | 6 | 0 | 9° | 7° | 112 | 129 |
The sunnier month by month: Jan even · Feb Shannon · Mar Shannon · Apr Shannon · May Shannon · Jun Shannon · Jul Shannon · Aug Shannon · Sep Shannon · Oct Shannon · Nov Shannon · Dec Shannon.
When to pick which
- November–February: Shannon (average score 7/100 vs 1). Shannon is the warmer, around 9°C daytime highs vs 7°C. See the winter sun ranking.
- March–May: Shannon (average score 31/100 vs 16). Shannon is the warmer, around 13°C daytime highs vs 11°C.
- June–August: Shannon (average score 63/100 vs 48). Shannon is the warmer, around 19°C daytime highs vs 17°C.
- September–October: Shannon (average score 44/100 vs 31). Shannon is the warmer, around 16°C daytime highs vs 14°C.
Full month-by-month guides: Shannon weather by month · Charlestown weather by month · Best time to visit Ireland.
More comparisons: Shannon vs Dublin · Shannon vs Cork · Charlestown vs Dublin · Charlestown vs Belfast · Charlestown vs Cork · all head-to-heads