Swains Island, American Samoa Climate

Weather: 28.17°C/82.71°F, Wind SW at 2.11 km/h, 73% Humidity, 0% Chance of rain

American Samoa
(Photo by Kawshar Ahmed on Unsplash)
Contents

Swains Island Climate Summary

Located at an elevation of 0 meters (0.0 feet) above sea level, Swains Island has a Tropical climate (wet, dry season) climate (Classification: AW). The city’s yearly temperature is 28.53ºC (83.35ºF) and it is 0.53% higher than American Samoa’s averages. Swains Island typically receives about 175.79 millimeters (6.92 inches) of precipitation and has 246.09 rainy days (67.42% of the time) annually.

Country American Samoa
Longitude -171.0782253
Latitude -11.0552207
Attitude/Elevation 0m (0.0ft)
Local time Friday 12:26
Annual high temperature 28.76ºC (83.77ºF)
Annual low temperature 27.58ºC (81.64ºF)
Average annual precip. 175.79mm (6.92in)
Warmest month April (29.12ºC / 84.42ºF)
Coldest Month August (27.14ºC / 80.85ºF)
Wettest Month February (329.14mm / 12.96in)
Driest Month April (110.79mm / 4.36in)
Number of days with rainfall (≥ 1.0 mm) 246.09 days (67.42%)
Days with no rain 118.91 days (32.58%)
Humidity 75.39%

Climate Swains Island: Monthly Averages

Month Jan Feb Mar Apr May Jun Jul Aug Sep Nov Oct Dec Year
Record high °C (°F) 30.0(86.0) 34.0(93.2) 30.0(86.0) 31.0(87.8) 30.0(86.0) 30.0(86.0) 30.0(86.0) 29.0(84.2) 29.0(84.2) 30.0(86.0) 30.0(86.0) 30.0(86.0) 34.0(93.2)
Average high °C (°F) 28.93(84.07) 28.82(83.88) 29.0(84.2) 29.12(84.42) 29.08(84.34) 28.86(83.95) 28.55(83.39) 28.35(83.03) 28.41(83.14) 28.5(83.3) 28.71(83.68) 28.77(83.79) 28.76(83.77)
Daily mean °C (°F) 28.66(83.59) 28.52(83.34) 28.78(83.8) 28.94(84.09) 28.91(84.04) 28.68(83.62) 28.27(82.89) 28.13(82.63) 28.18(82.72) 28.26(82.87) 28.46(83.23) 28.52(83.34) 28.53(83.35)
Average low °C (°F) 27.65(81.77) 27.51(81.52) 27.95(82.31) 28.19(82.74) 28.0(82.4) 27.72(81.9) 27.4(81.32) 27.14(80.85) 27.2(80.96) 27.24(81.03) 27.45(81.41) 27.53(81.55) 27.58(81.64)
Record low °C (°F) 21.0(69.8) 9.0(48.2) 22.0(71.6) 22.0(71.6) 21.0(69.8) 21.0(69.8) 21.0(69.8) 21.0(69.8) 21.0(69.8) 21.0(69.8) 21.0(69.8) 20.0(68.0) 9.0(48.2)
Average precipitation mm (inches) 285.48(11.24) 329.14(12.96) 154.85(6.1) 110.79(4.36) 130.63(5.14) 147.7(5.81) 148.82(5.86) 144.72(5.7) 140.18(5.52) 163.51(6.44) 150.63(5.93) 202.99(7.99) 175.79(6.92)
Average precipitation days (≥ 1.0 mm) 23.09 23.09 22.91 19.36 20.91 19.27 18.55 19.82 20.09 19.45 18.55 21.0 20.51
Average relative humidity (%) 75.09 76.26 75.12 74.92 75.35 76.14 76.17 76.24 75.86 75.14 73.97 74.48 75.39
Mean monthly sunshine hours 10.12 9.75 10.43 10.52 10.53 10.48 10.51 10.37 10.52 11.36 12.01 11.42 10.67

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Swains Island in recent years.

Swains Island

Swains Island Temperature by Month

April
28.94°C | 84.09°F
May
28.91°C | 84.04°F
March
28.78°C | 83.8°F
June
28.68°C | 83.62°F
January
28.66°C | 83.59°F
February
28.52°C | 83.34°F
December
28.52°C | 83.34°F
November
28.46°C | 83.23°F
July
28.27°C | 82.89°F
October
28.26°C | 82.87°F
September
28.18°C | 82.72°F
August
28.13°C | 82.63°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
Temperature Max Average Min
Max Temperature 29.0°C (84.2°F) 28.67°C (83.61°F) 28.0°C (82.4°F)
Avg Temperature 29.0°C (84.2°F) 28.27°C (82.89°F) 28.0°C (82.4°F)
Min Temperature 29.0°C (84.2°F) 28.0°C (82.4°F) 27.0°C (80.6°F)
Dew Point Max Average Min
Dew Point 24.0°C (75.2°F) 23.6°C (74.48°F) 22.0°C (71.6°F)
Precipitation Max Average Min Sum
Precipitation 18.3mm | 0.72in 3.03mm | 0.12in 0.0mm | 0in 91.0mm | 3.58in
Snowdepth 0.0mm | 0in 0.0mm | 0in 0.0mm | 0in 0.0mm | 0in
Wind Max Average Min
Wind 35.0kmh | 21.75mph 22.53kmh | 14.0mph 5.0kmh | 3.11mph
Gust Wind 49.0kmh | 30.45mph 31.13kmh | 19.34mph 8.0kmh | 4.97mph
Sea Level Pressure Max Average Min
Sea Level Pressure 18.3mb 3.03mb 0.0mb
Swains Island

Daily Observations

Time Temperature Dew Point Humidity Wind Speed Pressure Precipitation
September ° C | ° F ° C | ° F % Kph | Mph Hg | Mb Total (mm/in)
2018-09-01 29 | 84.2 24 | 75.2 78 32 | 19.88 29.83 | 1010 0.0 | 0.0
2018-09-02 28 | 82.4 24 | 75.2 78 33 | 20.51 29.83 | 1010 1.7 | 0.07
2018-09-03 29 | 84.2 24 | 75.2 77 29 | 18.02 29.83 | 1010 0.3 | 0.01
2018-09-04 28 | 82.4 24 | 75.2 77 32 | 19.88 29.83 | 1010 2.1 | 0.08
2018-09-05 28 | 82.4 24 | 75.2 77 31 | 19.26 29.83 | 1010 0.5 | 0.02
2018-09-06 28 | 82.4 24 | 75.2 76 24 | 14.91 29.8 | 1009 0.2 | 0.01
2018-09-07 28 | 82.4 23 | 73.4 73 16 | 9.94 29.83 | 1010 0.0 | 0.0
2018-09-08 28 | 82.4 22 | 71.6 67 15 | 9.32 29.83 | 1010 0.0 | 0.0
2018-09-09 28 | 82.4 23 | 73.4 74 16 | 9.94 29.83 | 1010 1.8 | 0.07
2018-09-10 28 | 82.4 24 | 75.2 77 21 | 13.05 29.83 | 1010 1.7 | 0.07
2018-09-11 28 | 82.4 24 | 75.2 79 25 | 15.53 29.83 | 1010 1.6 | 0.06
2018-09-12 28 | 82.4 23 | 73.4 76 18 | 11.18 29.88 | 1012 9.7 | 0.38
2018-09-13 28 | 82.4 23 | 73.4 76 21 | 13.05 29.85 | 1011 2.7 | 0.11
2018-09-14 29 | 84.2 24 | 75.2 75 31 | 19.26 29.83 | 1010 0.3 | 0.01
2018-09-15 29 | 84.2 24 | 75.2 77 35 | 21.75 29.83 | 1010 0.8 | 0.03
2018-09-16 29 | 84.2 24 | 75.2 77 35 | 21.75 29.83 | 1010 4.3 | 0.17
2018-09-17 28 | 82.4 24 | 75.2 80 27 | 16.78 29.8 | 1009 4.8 | 0.19
2018-09-18 28 | 82.4 24 | 75.2 78 17 | 10.56 29.8 | 1009 5.4 | 0.21
2018-09-19 28 | 82.4 22 | 71.6 72 7 | 4.35 29.8 | 1009 2.0 | 0.08
2018-09-20 28 | 82.4 24 | 75.2 77 17 | 10.56 29.8 | 1009 4.7 | 0.19
2018-09-21 28 | 82.4 23 | 73.4 74 12 | 7.46 29.83 | 1010 2.5 | 0.1
2018-09-22 28 | 82.4 22 | 71.6 70 5 | 3.11 29.83 | 1010 0.1 | 0.0
2018-09-23 29 | 84.2 23 | 73.4 70 11 | 6.84 29.83 | 1010 0.0 | 0.0
2018-09-24 28 | 82.4 24 | 75.2 78 20 | 12.43 29.8 | 1009 7.5 | 0.3
2018-09-25 28 | 82.4 24 | 75.2 79 25 | 15.53 29.8 | 1009 7.1 | 0.28
2018-09-26 29 | 84.2 24 | 75.2 78 27 | 16.78 29.83 | 1010 5.1 | 0.2
2018-09-27 28 | 82.4 24 | 75.2 76 20 | 12.43 29.85 | 1011 18.3 | 0.72
2018-09-28 28 | 82.4 24 | 75.2 79 28 | 17.4 29.85 | 1011 5.7 | 0.22
2018-09-29 29 | 84.2 24 | 75.2 77 26 | 16.16 29.85 | 1011 0.1 | 0.0
2018-09-30 28 | 82.4 24 | 75.2 75 20 | 12.43 29.85 | 1011 0.0 | 0.0

Swains Island 10 Year Historical Weather Data

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