Castelo in May
8.0out of 10
Yes, a good time to go
Warm and comfortable: highs around 25°C. Some rain: about 8 rainy days.
25°CAvg high
15°CAvg low
8Rainy days (43 mm)
11:01 hDaylight
06:10Sunrise · 17:12 Sunset
Why this score
- Warm and comfortable: highs around 25°C
- Some rain: about 8 rainy days
What to wear and pack
- T-shirts and light layers
- Rain jacket or compact umbrella
How reliable is the forecast?
Rainfall in May is fairly consistent from year to year (2.6 days). 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 | 29°C | 20°C | 148 mm | 14 | – | – | 6.9 |
| February | 30°C | 19°C | 109 mm | 12 | – | – | 7.2 |
| March | 28°C | 19°C | 159 mm | 17 | – | – | 6.5 |
| April | 27°C | 18°C | 88 mm | 13 | – | – | 7.3 |
| May | 25°C | 15°C | 43 mm | 8 | – | – | 8.0 |
| June | 24°C | 14°C | 23 mm | 6 | – | – | 8.4 |
| July | 24°C | 14°C | 24 mm | 6 | – | – | 8.3 |
| August | 25°C | 14°C | 26 mm | 7 | – | – | 8.2 |
| September | 26°C | 15°C | 58 mm | 9 | – | – | 7.8 |
| October | 26°C | 17°C | 110 mm | 12 | – | – | 7.3 |
| November | 26°C | 18°C | 191 mm | 17 | – | – | 6.3 |
| December | 28°C | 19°C | 224 mm | 19 | – | – | 6.1 |
Frequently asked questions
How hot is Castelo in May?
Daytime highs average 25°C and nights about 15°C.
When is the best time to visit Castelo?
The best months are June, July, August, May.