Iona in May
8.0out of 10
Yes, a good time to go
Warm and comfortable: highs around 28°C. Some rain: about 8 rainy days.
28°CAvg high
23°CAvg low
8Rainy days (60 mm)
13:18 hDaylight
06:45Sunrise · 20:03 Sunset
Why this score
- Warm and comfortable: highs around 28°C
- Some rain: about 8 rainy days
- Rain varies a lot between years (±4.7 days)
What to wear and pack
- T-shirts and light layers
- Shorts or a light skirt
- Rain jacket or compact umbrella
- Sunscreen, sunglasses and a hat
How reliable is the forecast?
Rain in May varies a lot between years (±4.7 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 21°C | 15°C | 47 mm | 5 | – | – | 8.3 |
| February | 22°C | 16°C | 37 mm | 5 | – | – | 8.5 |
| March | 24°C | 18°C | 39 mm | 5 | – | – | 8.5 |
| April | 26°C | 20°C | 44 mm | 6 | – | – | 8.3 |
| May | 28°C | 23°C | 60 mm | 8 | – | – | 8.0 |
| June | 30°C | 25°C | 142 mm | 18 | – | – | 6.2 |
| July | 30°C | 26°C | 124 mm | 20 | – | – | 5.9 |
| August | 30°C | 26°C | 132 mm | 21 | – | – | 5.7 |
| September | 30°C | 25°C | 142 mm | 18 | – | – | 6.1 |
| October | 28°C | 23°C | 72 mm | 9 | – | – | 7.9 |
| November | 25°C | 19°C | 32 mm | 4 | – | – | 8.6 |
| December | 23°C | 17°C | 35 mm | 4 | – | – | 8.5 |
Frequently asked questions
How hot is Iona in May?
Daytime highs average 28°C and nights about 23°C.
When is the best time to visit Iona?
The best months are November, February, March, December.