Here are some specific details about the weather in Lake Buena Vista in May:
* Average temperature: 72-88°F (22-31°C)
* Average humidity: 65%
* Average rainfall: 6 inches (15.2 cm)
* Number of rainy days: 12
* Average wind speed: 8 mph (13 km/h)
* Average sunshine: 7 hours per day
Overall, the weather in Lake Buena Vista in May is warm and humid, with a high chance of rain. However, it is still a great time to visit the city, as the weather is perfect for enjoying the many outdoor activities that the area has to offer.