Midway Atoll
Midway Island, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Midway Atoll, Midway Island, USA

May, the last month of the spring, in Midway Atoll, is a warm month, with average temperature fluctuating between 75.9°F (24.4°C) and 68°F (20°C).

Temperature

In Midway Atoll, the average high-temperature is practically the same as in April - a warm 75.9°F (24.4°C). In Midway Atoll, in May, the average low-temperature is 68°F (20°C).

Rainfall

In Midway Atoll, Midway Island, it is raining for 9 days, with typically 2.3" (58.4mm) of accumulated precipitation. In Midway Atoll, during the entire year, the rain falls for 160 days and collects up to 41.3" (1048.9mm) of precipitation.

Ocean temperature

In May, the average ocean temperature in Midway Atoll is 71.6°F (22°C).
Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 71.6°F (22°C) water. (FYI: The Olympic swimming competition requires a water temperature between 77°F (25°C) and 82.4°F (28°C).)

Daylight

In May, the average length of the day is 13.6h.

Sunshine

The average sunshine in Midway Atoll, Midway Island, is 17h.

UV index

The average daily maximum UV index in May is 10. A UV Index reading of 8 to 10 represents a very high health hazard from the exposure to the Sun's UV rays for ordinary individuals.
Note: In May, the average maximum UV index of 10 translate into the following recommendations:
Take extra precautions. Fair-skinned individuals may get burned in less than 10 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Prolonged stay under the direct sun should be avoided as much as possible, especially if a person burns easily. Sunscreen with a minimum 30 sun protection factor should always be used. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in May in Midway Atoll?

In May, in Midway Atoll, Midway Island, the average high-temperature is 75.9°F (24.4°C), and the average low-temperature is 68°F (20°C).

How many days does it rain in May in Midway Atoll?

In Midway Atoll, in May, it is raining for 9 days, with typically 2.3" (58.4mm) of accumulated precipitation.

What is the water temperature in May in Midway Atoll?

In Midway Atoll, Midway Island, the average seawater temperature in May is 71.6°F (22°C). For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 71.6°F (22°C).

How many hours of daylight does Midway Atoll have in May?

In Midway Atoll, the average length of the day in May is 13.6h.

How many hours of sunshine does Midway Atoll have in May?

In Midway Atoll, Midway Island, the average sunshine in May is 17h.

What is the UV index intensity in May in Midway Atoll?

In May, the average daily maximum UV index is 10. A UV Index reading of 8 to 10 represents a very high hazard to health from the exposure to the Sun's UV radiation.
Average temperature in May - Midway Atoll, Midway Island, USA
  • Average high temperature in May: 24.4°C

Warmest months (with the highest average high temperature) are August and September (28.9°C).
Months with the lowest average high temperature are January and February (21.1°C).

  • Average low temperature in May: 20°C

Months with the highest average low temperature are July, August and September (23.9°C).
Coldest months (with the lowest average low temperature) are January and February (16.7°C).

Average rainfall in May - Midway Atoll, Midway Island, USA
  • Average rainfall in May: 58.4mm

The wettest month (with the highest rainfall) is January (127mm).
The driest month (with the lowest rainfall) is June (55.9mm).

Average rainfall days in May - Midway Atoll, Midway Island, USA
  • Average rainfall days in May: 9 days

Months with the highest number of rainy days are January and December (16 days).
Months with the lowest number of rainy days are May and June (9 days).

Average sea temperature in May - Midway Atoll, Midway Island, USA
  • Average sea temperature in May: 22°C

Best months for swimming (with the highest average sea temperature) are August and September (27°C).
Coldest months (with the lowest average sea temperature) are January, February and March (20°C).

Average daylight in May / Average sunshine in May - Midway Atoll, Midway Island, USA
  • Average daylight in May: 13.6h

The month with the longest days is June (Average daylight: 13.9h).
The month with shortest days is December (Average daylight: 10.4h).

  • Average sunshine in May: 17h

Months with most sunshine are July, September and October (Average sunshine: 18h).
Months with least sunshine are January and February (Average sunshine: 14).

Average UV index in May - Midway Atoll, Midway Island, USA
  • Average UV index in May: 10

Months with the highest UV index are June, July and August (UV index 11).
Months with the lowest UV index are January and December (UV index 5).