Grand Island in May
7.2out of 10
Possible, with caveats
Warm and comfortable: highs around 23°C. Frequent rain: about 12 rainy days.
23°CAvg high
11°CAvg low
12Rainy days (129 mm)
14:17 hDaylight
06:21Sunrise · 20:38 Sunset
Why this score
- Warm and comfortable: highs around 23°C
- Frequent rain: about 12 rainy days
- Rain varies a lot between years (±4.0 days)
What to wear and pack
- T-shirts and light layers
- A light jacket for cooler evenings
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in May varies a lot between years (±4.0 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 | 2°C | -8°C | 20 mm | 4 | – | – | 4.7 |
| February | 5°C | -6°C | 24 mm | 5 | – | – | 5.2 |
| March | 12°C | -1°C | 50 mm | 7 | – | – | 6.3 |
| April | 18°C | 4°C | 85 mm | 10 | – | – | 7.1 |
| May | 23°C | 11°C | 129 mm | 12 | – | – | 7.2 |
| June | 29°C | 17°C | 104 mm | 10 | – | – | 7.6 |
| July | 31°C | 19°C | 76 mm | 9 | – | – | 7.3 |
| August | 30°C | 18°C | 76 mm | 9 | – | – | 7.7 |
| September | 26°C | 13°C | 60 mm | 7 | – | – | 8.2 |
| October | 19°C | 6°C | 64 mm | 7 | – | – | 7.6 |
| November | 10°C | -1°C | 33 mm | 5 | – | – | 6.4 |
| December | 4°C | -6°C | 27 mm | 4 | – | – | 5.0 |
Frequently asked questions
How hot is Grand Island in May?
Daytime highs average 23°C and nights about 11°C.
When is the best time to visit Grand Island?
The best months are September, August, June, October.