Currently: 77 °F. Mild. (Weather station: MADIS Weather Station TOAP6 (RAWS), US Minor Outlying Islands). See more current weatherAnnual Weather Averages in Kekaha - Pacific Missile Test Facility Barking Sands
Kekaha - Pacific Missile Test Facility Barking Sands is 733 miles from Johnston Atoll, so the actual climate in Johnston Atoll can vary a bit.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Johnston Atoll
High Temp: 87 °F
Low Temp: 65 °F
Mean Temp: 76 °F
Precipitation: 1.64"
Humidity: 70%
Dew Point: 65 °F
Wind: 13 mph
Pressure: 30.03 "Hg
Visibility: 10 mi
January Climate & Weather Averages in Johnston Atoll
High Temp: 80 °F
Low Temp: 65 °F
Mean Temp: 72 °F
Precipitation: 2.26"
Humidity: 72%
Dew Point: 63 °F
Wind: 14 mph
Pressure: 30.01 "Hg
Visibility: 10 mi
February Climate & Weather Averages in Johnston Atoll
High Temp: 79 °F
Low Temp: 65 °F
Mean Temp: 72 °F
Precipitation: 2.44"
Humidity: 71%
Dew Point: 62 °F
Wind: 15 mph
Pressure: 30.04 "Hg
Visibility: 10 mi
March Climate & Weather Averages in Johnston Atoll
High Temp: 80 °F
Low Temp: 66 °F
Mean Temp: 73 °F
Precipitation: 2.61"
Humidity: 70%
Dew Point: 62 °F
Wind: 14 mph
Pressure: 30.06 "Hg
Visibility: 10 mi
April Climate & Weather Averages in Johnston Atoll
High Temp: 82 °F
Low Temp: 67 °F
Mean Temp: 74 °F
Precipitation: 0.90"
Humidity: 69%
Dew Point: 64 °F
Wind: 13 mph
Pressure: 30.07 "Hg
Visibility: 10 mi
May Climate & Weather Averages in Johnston Atoll
High Temp: 84 °F
Low Temp: 69 °F
Mean Temp: 76 °F
Precipitation: 1.19"
Humidity: 68%
Dew Point: 65 °F
Wind: 13 mph
Pressure: 30.05 "Hg
Visibility: 10 mi
June Climate & Weather Averages in Johnston Atoll
High Temp: 85 °F
Low Temp: 71 °F
Mean Temp: 78 °F
Precipitation: 0.85"
Humidity: 69%
Dew Point: 67 °F
Wind: 13 mph
Pressure: 30.05 "Hg
Visibility: 10 mi
July Climate & Weather Averages in Johnston Atoll
High Temp: 87 °F
Low Temp: 72 °F
Mean Temp: 79 °F
Precipitation: 0.67"
Humidity: 68%
Dew Point: 68 °F
Wind: 13 mph
Pressure: 30.03 "Hg
Visibility: 10 mi
August Climate & Weather Averages in Johnston Atoll
High Temp: 87 °F
Low Temp: 73 °F
Mean Temp: 80 °F
Precipitation: 0.70"
Humidity: 67%
Dew Point: 68 °F
Wind: 12 mph
Pressure: 30.01 "Hg
Visibility: 10 mi
September Climate & Weather Averages in Johnston Atoll
High Temp: 87 °F
Low Temp: 72 °F
Mean Temp: 80 °F
Precipitation: 1.13"
Humidity: 68%
Dew Point: 68 °F
Wind: 12 mph
Pressure: 29.99 "Hg
Visibility: 10 mi
October Climate & Weather Averages in Johnston Atoll
High Temp: 86 °F
Low Temp: 71 °F
Mean Temp: 78 °F
Precipitation: 2.13"
Humidity: 70%
Dew Point: 68 °F
Wind: 12 mph
Pressure: 29.99 "Hg
Visibility: 10 mi
November Climate & Weather Averages in Johnston Atoll
High Temp: 83 °F
Low Temp: 69 °F
Mean Temp: 76 °F
Precipitation: 2.19"
Humidity: 71%
Dew Point: 66 °F
Wind: 13 mph
Pressure: 30.01 "Hg
Visibility: 10 mi
December Climate & Weather Averages in Johnston Atoll
High Temp: 81 °F
Low Temp: 67 °F
Mean Temp: 74 °F
Precipitation: 2.66"
Humidity: 73%
Dew Point: 64 °F
Wind: 13 mph
Pressure: 30.02 "Hg
Visibility: 10 mi