May weather forecast
Midway Atoll, Midway Island, USA

As May swings along, the weather clearly signals the approach of summer with temperatures spanning from 68°F (20°C) to 76°F (24.4°C). Despite the rising temperatures, rainfall continues its downward trajectory with 2.3" (58mm) recorded. The weather becomes conspicuously sunnier with daylight stretching for longer hours. The imminent arrival of summer is made even more evident by the rising UV index. The conclusion of May sets the stage for even hotter weather in June.

Temperature

The transition into May in Midway Atoll reveals an average high-temperature of a warm 75.9°F (24.4°C), mirroring a close resemblance to April. The temperature during May experiences a small drop from daytime peaks, recording an average of 68°F (20°C) at night.

Rainfall

In Midway Atoll, in May, during 9 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Midway Atoll, during the entire year, the rain falls for 160 days and collects up to 41.3" (1049mm) of precipitation.

Ocean temperature

In May, the average ocean temperature is 71.6°F (22°C).
Note: Think about diving into 71.6°F (22°C) waters. Factors like your sensitivity to cold, the brightness of the sun, wind conditions, and the day's warmth play a role. For reference, Olympic swimming competitions use waters between 77°F (25°C) and 82.4°F (28°C).

Daylight

The average length of the day in May is 13h and 34min.
On the first day of May, sunrise is at 6:08 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 7:41 pm SST.

Sunshine

In May, the average sunshine is 17h.

UV index

In May, the average daily maximum UV index is 10. A UV Index estimate of 8 to 10 represents a very high health hazard from exposure to the Sun's UV rays for the average person.
Note: A maximum UV index of 10 in May translates into the following recommendations:
Without adequate protection, skin and eyes might suffer damage. Ensure precautions are in place. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Direct sunlight can be harmful over extended periods, especially for those prone to sunburns. Use a sunscreen of 30 SPF or higher for protection. Notice! Sand and water reflections contribute to a stronger UV exposure.