29°C
temperature
3015 hours
sunshine per day
861 mm
rain
186 days
dry
179 days
rain
0 days
snow

Climate of Johnston Atoll

Climate averages for the whole year

  • Day: the average daily temperature during the day is between 28°C and 29°C
  • Night:the average nighttime temperature is between 27°C and 28°C
  • Rain: it rains 179 days and there is a total of approximately 861 mm rainfall
  • Sun hours: throughout the year there are 3015 sun hours
Maximum temperature: between 28°C and 29°C
Warmest month: 29°C in May
Coldest month: 28°C in January
Night temperature: between 27°C and 28°C
Dry days: 186 days
Days with rain: 179 days
Days with snow: 0 days
Total rain sum: 861 mm
Hours of sunshine: 3015 hours

Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Johnston Atoll.

Precipitation graph

This graph shows the average amount of rainfall per month for Johnston Atoll.

Climate table of Johnston Atoll

In this climate table you can see at a glance what the average weather per month is for Johnston Atoll. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Johnston Atoll might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°C) 28 28 28 28 29 29 29 29 29 29 29 28
Night temp. (°C) 28 27 27 28 28 28 28 28 28 28 28 28
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (mm) 99 77 141 68 54 56 62 62 56 46 42 98
Days with rain 15 13 18 19 17 16 16 14 13 13 10 15
Dry days 16 15 13 11 14 14 15 17 17 18 20 16
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 8 8 8 8 9 9 9 9 9 8 8 8
Wind force (Bft) 4 4 4 3 3 3 3 3 3 3 3 3
UV-index 7 7 7 7 7 7 7 7 7 7 7 7

Best time to visit Johnston Atoll

The best time to visit Johnston Atoll, United States Minor Outlying Islands is January and February and April through December. In this period you have a warm temperature and little precipitation. On the island of Johnston Atoll, the warmest month is May with 29°C and the coldest is January with 28°C.

Climate of Johnston Atoll by month

What is the average climate in a given month for Johnston Atoll? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

Johnston Atoll weather experiences

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