Rose Atoll, Rose Island, American Samoa Climate

Weather: 26.42°C/79.56°F, Wind SW at 2.33 km/h, 76% Humidity, 1.12% Chance of rain

American Samoa
(Photo by Thea Hdc on Unsplash)

Rose Atoll Climate Summary

Located at an elevation of -13.88 meters (-45.54 feet) above sea level, Rose Atoll has a Tropical climate (wet, dry season) climate (Classification: AW). The district’s yearly temperature is 28.67ºC (83.61ºF) and it is 0.67% higher than American Samoa’s averages. Rose Atoll typically receives about 117.03 millimeters (4.61 inches) of precipitation and has 220.7 rainy days (60.47% of the time) annually.

CountryAmerican Samoa
CityRose Island
Longitude-168.1535928
Latitude-14.5456814
Attitude/Elevation-13.88m (-45.54ft)
Local timeTuesday 21:04
Annual high temperature28.93ºC (84.07ºF)
Annual low temperature27.7ºC (81.86ºF)
Average annual precip.117.03mm (4.61in)
Warmest monthMarch (29.75ºC / 85.55ºF)
Coldest MonthAugust (26.84ºC / 80.31ºF)
Wettest MonthFebruary (208.29mm / 8.2in)
Driest MonthSeptember (55.36mm / 2.18in)
Number of days with rainfall (≥ 1.0 mm)220.7 days (60.47%)
Days with no rain144.3 days (39.53%)
Humidity78.81%

Climate Rose Atoll: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)30.86(87.55)30.86(87.55)31.89(89.4)30.86(87.55)30.86(87.55)29.83(85.69)29.83(85.69)28.8(83.84)29.83(85.69)29.83(85.69)30.86(87.55)30.86(87.55)31.89(89.4)
Average high °C (°F)29.5(85.1)29.49(85.08)29.75(85.55)29.65(85.37)29.25(84.65)28.7(83.66)28.17(82.71)27.94(82.29)28.13(82.63)28.54(83.37)28.88(83.98)29.14(84.45)28.93(84.07)
Daily mean °C (°F)29.18(84.52)29.18(84.52)29.45(85.01)29.38(84.88)29.02(84.24)28.49(83.28)27.92(82.26)27.74(81.93)27.94(82.29)28.29(82.92)28.61(83.5)28.84(83.91)28.67(83.61)
Average low °C (°F)28.2(82.76)28.2(82.76)28.6(83.48)28.54(83.37)28.06(82.51)27.49(81.48)26.85(80.33)26.84(80.31)26.96(80.53)27.21(80.98)27.65(81.77)27.85(82.13)27.7(81.86)
Record low °C (°F)20.57(69.03)18.52(65.34)21.6(70.88)20.57(69.03)20.57(69.03)19.55(67.19)19.55(67.19)19.55(67.19)17.49(63.48)17.49(63.48)18.52(65.34)19.55(67.19)17.49(63.48)
Average precipitation mm (inches)185.29(7.29)208.29(8.2)100.65(3.96)129.24(5.09)147.87(5.82)68.87(2.71)83.32(3.28)58.47(2.3)55.36(2.18)106.05(4.18)107.51(4.23)153.33(6.04)117.02(4.61)
Average precipitation days (≥ 1.0 mm)21.619.4521.3222.6319.6413.4715.0612.8113.6518.719.6422.7218.39
Average relative humidity (%)77.9178.1776.4877.6578.8480.1480.279.6980.279.6678.8877.8878.81
Mean monthly sunshine hours11.8610.7111.0110.368.017.828.8310.410.8612.1812.5412.5310.6

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Rose Atoll in recent years.

Rose Atoll

Rose Atoll Temperature by Month

March
29.45°C | 85.01°F
April
29.38°C | 84.88°F
January
29.18°C | 84.52°F
February
29.18°C | 84.52°F
May
29.02°C | 84.24°F
December
28.84°C | 83.91°F
November
28.61°C | 83.5°F
June
28.49°C | 83.28°F
October
28.29°C | 82.92°F
September
27.94°C | 82.29°F
July
27.92°C | 82.26°F
August
27.74°C | 81.93°F

Historical Data

Summary
  • 2010
  • 2011
  • 2012
  • 2013
  • 2014
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature29.83°C (85.69°F)29.68°C (85.42°F)27.77°C (81.99°F)
Avg Temperature29.83°C (85.69°F)29.39°C (84.9°F)27.77°C (81.99°F)
Min Temperature29.83°C (85.69°F)28.98°C (84.16°F)27.77°C (81.99°F)
Dew PointMaxAverageMin
Dew Point25.72°C (78.3°F)24.43°C (75.97°F)22.63°C (72.73°F)
PrecipitationMaxAverageMinSum
Precipitation84.87mm | 3.34in7.85mm | 0.31in0.0mm | 0in219.84mm | 8.66in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind54.52kmh | 33.88mph16.42kmh | 10.2mph4.11kmh | 2.55mph
Gust Wind73.04kmh | 45.38mph23.04kmh | 14.32mph5.14kmh | 3.19mph
Sea Level PressureMaxAverageMin
Sea Level Pressure84.87mb7.85mb0.0mb
Rose Atoll

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
February° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2018-02-0129.83 | 85.6925.72 | 78.37814.4 | 8.9530.56 | 1034.871.13 | 0.04
2018-02-0229.83 | 85.6924.69 | 76.447716.46 | 10.2330.56 | 1034.870.31 | 0.01
2018-02-0329.83 | 85.6924.69 | 76.447511.32 | 7.0330.59 | 1035.94.22 | 0.17
2018-02-0429.83 | 85.6925.72 | 78.37714.4 | 8.9530.59 | 1035.98.95 | 0.35
2018-02-0529.83 | 85.6924.69 | 76.447616.46 | 10.2330.56 | 1034.870.31 | 0.01
2018-02-0629.83 | 85.6924.69 | 76.447819.55 | 12.1530.5 | 1032.813.6 | 0.14
2018-02-0727.77 | 81.9924.69 | 76.448111.32 | 7.0330.44 | 1030.7684.87 | 3.34
2018-02-0827.77 | 81.9924.69 | 76.448417.49 | 10.8730.38 | 1028.751.02 | 2.01
2018-02-0929.83 | 85.6925.72 | 78.38054.52 | 33.8830.26 | 1024.5912.45 | 0.49
2018-02-1029.83 | 85.6925.72 | 78.37943.21 | 26.8530.38 | 1028.71.95 | 0.08
2018-02-1129.83 | 85.6925.72 | 78.37729.83 | 18.5430.44 | 1030.761.75 | 0.07
2018-02-1229.83 | 85.6925.72 | 78.37725.72 | 15.9830.5 | 1032.810.21 | 0.01
2018-02-1329.83 | 85.6924.69 | 76.447415.43 | 9.5930.56 | 1034.870.62 | 0.02
2018-02-1429.83 | 85.6923.66 | 74.59715.14 | 3.1930.59 | 1035.91.13 | 0.04
2018-02-1529.83 | 85.6923.66 | 74.59706.17 | 3.8330.59 | 1035.90.21 | 0.01
2018-02-1628.8 | 83.8423.66 | 74.59714.11 | 2.5530.56 | 1034.872.98 | 0.12
2018-02-1728.8 | 83.8423.66 | 74.59735.14 | 3.1930.59 | 1035.911.73 | 0.46
2018-02-1828.8 | 83.8423.66 | 74.59735.14 | 3.1930.59 | 1035.91.13 | 0.04
2018-02-1928.8 | 83.8422.63 | 72.73687.2 | 4.4730.56 | 1034.870.0 | 0
2018-02-2028.8 | 83.8422.63 | 72.73697.2 | 4.4730.56 | 1034.870.1 | 0.0
2018-02-2128.8 | 83.8422.63 | 72.73696.17 | 3.8330.62 | 1036.930.62 | 0.02
2018-02-2229.83 | 85.6923.66 | 74.59708.23 | 5.1130.68 | 1038.994.22 | 0.17
2018-02-2327.77 | 81.9923.66 | 74.597812.34 | 7.6730.74 | 1041.049.36 | 0.37
2018-02-2429.83 | 85.6924.69 | 76.447621.6 | 13.4230.74 | 1041.042.06 | 0.08
2018-02-2529.83 | 85.6924.69 | 76.447625.72 | 15.9830.74 | 1041.044.83 | 0.19
2018-02-2629.83 | 85.6924.69 | 76.447619.55 | 12.1530.74 | 1041.041.03 | 0.04
2018-02-2729.83 | 85.6924.69 | 76.447719.55 | 12.1530.71 | 1040.020.82 | 0.03
2018-02-2829.83 | 85.6924.69 | 76.447616.46 | 10.2330.68 | 1038.998.23 | 0.32

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