United States Minor Outlying IslandsAverage weather for Johnston Atoll in May
It's warm in May in Johnston Atoll with an average temperature of 27°C. Temperatures this month range from a low of 26°C to a high of 27°C. At night, you can expect temperatures between 25°C and 26°C.
Start of May
The month of May starts in Johnston Atoll with hot temps, averaging around 27°C during the day and nights around 26°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
Mid May
By mid-May, daytime temps stay steady at around 27°C, with nights around 26°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
End of May
By the end of May, the average daytime temperature in Johnston Atoll is around 27°C, while nighttime temps are about 26°C. A shower might pop up, but overall, the weather will be dry and sunny. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
In May, there is an average of 66 mm of precipitation, spread over 13 days. The wind speed is around 5 Bft, mostly coming from the East.
Johnston Atoll in May |
New York | ||
|---|---|---|---|
 Average temperature |
27°C | 22°C | |
 Max. temperature |
27°C | 28°C | |
| Min. temperature |
26°C | -5°C | |
 Total precipitation |
66 mm | 105 mm | |
| Rainy days |
13 days | 14 days | |
April
UV index
The UV index is a maximum of 10 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is May a good time to visit Johnston Atoll?
Looking for great weather? May is a good time to be in Johnston Atoll. The temperatures are nice, and there’s not too much rain.
Temperature records
With 28°C in 2014, Johnston Atoll reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 24°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of 22°C to a highest value of 27°C.
Check out the climate of Johnston Atoll for all months and discover the best travel time
Daily Temperature in May in Johnston Atoll
This chart shows the average daily high and low temperatures in May for Johnston Atoll, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in May in Johnston Atoll
The chart below shows the average daily precipitation in May for Johnston Atoll, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for May, you can expect about 13 days of precipitation in Johnston Atoll.
Daily UV index in May in Johnston Atoll
This chart shows the average daily UV index in May in Johnston Atoll, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in May in Johnston Atoll over the years
This chart shows the average temperature in May in Johnston Atoll, measured in degrees Celsius, over the past few years.
Total precipitation in May in Johnston Atoll over the years
This chart shows the average precipitation in May in Johnston Atoll, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in May for Johnston Atoll
Click on any day in May to get detailed info about the usual weather on that day in Johnston Atoll. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in Johnston Atoll
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Average weather in Johnston Atoll by month
Click on a month below to see detailed weather info for Johnston Atoll. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Johnston Atoll for all months at once
