Sister Islands, Cayman Islands Climate

Weather: 28.16°C/82.69°F, Wind SW at 4.37 km/h, 76% Humidity, 0% Chance of rain

Cayman Islands
(Photo by Jackie Parker on Unsplash)

Sister Islands Climate Summary

Located at an elevation of 30.58 meters (100.33 feet) above sea level, Sister Islands has a Tropical wet and dry or savanna climate (Classification: Aw). The city’s yearly temperature is 27.54ºC (81.57ºF) and it is 0.0% lower than Cayman Islands’s averages. Sister Islands typically receives about 79.58 millimeters (3.13 inches) of precipitation and has 165.91 rainy days (45.45% of the time) annually.

Country Cayman Islands
Longitude -79.7904475
Latitude 19.7228918
Attitude/Elevation 30.58m (100.33ft)
Local time Tuesday 14:02
Annual high temperature 27.78ºC (82.0ºF)
Annual low temperature 26.8ºC (80.24ºF)
Average annual precip. 79.58mm (3.13in)
Warmest month August (29.51ºC / 85.12ºF)
Coldest Month January (24.62ºC / 76.32ºF)
Wettest Month October (190.32mm / 7.49in)
Driest Month March (24.05mm / 0.95in)
Number of days with rainfall (≥ 1.0 mm) 165.91 days (45.45%)
Days with no rain 199.09 days (54.55%)
Humidity 75.63%

Climate Sister Islands: Monthly Averages

Month Jan Feb Mar Apr May Jun Jul Aug Sep Nov Oct Dec Year
Record high °C (°F) 28.0(82.4) 28.0(82.4) 28.0(82.4) 29.0(84.2) 29.0(84.2) 30.0(86.0) 30.0(86.0) 31.0(87.8) 30.0(86.0) 30.0(86.0) 29.0(84.2) 29.0(84.2) 31.0(87.8)
Average high °C (°F) 26.05(78.89) 26.18(79.12) 26.11(79.0) 27.15(80.87) 27.96(82.33) 28.69(83.64) 29.14(84.45) 29.51(85.12) 29.42(84.96) 28.82(83.88) 27.61(81.7) 26.74(80.13) 27.78(82.0)
Daily mean °C (°F) 25.72(78.3) 25.87(78.57) 25.82(78.48) 26.96(80.53) 27.77(81.99) 28.46(83.23) 28.99(84.18) 29.25(84.65) 29.15(84.47) 28.61(83.5) 27.37(81.27) 26.49(79.68) 27.54(81.57)
Average low °C (°F) 24.62(76.32) 25.09(77.16) 25.01(77.02) 26.32(79.38) 27.17(80.91) 27.91(82.24) 28.38(83.08) 28.55(83.39) 28.52(83.34) 27.91(82.24) 26.51(79.72) 25.55(77.99) 26.8(80.24)
Record low °C (°F) 14.0(57.2) 15.0(59.0) 17.0(62.6) 20.0(68.0) 20.0(68.0) 22.0(71.6) 22.0(71.6) 21.0(69.8) 22.0(71.6) 20.0(68.0) 18.0(64.4) 15.0(59.0) 14.0(57.2)
Average precipitation mm (inches) 45.93(1.81) 28.9(1.14) 24.05(0.95) 37.68(1.48) 112.34(4.42) 82.59(3.25) 72.98(2.87) 77.39(3.05) 86.59(3.41) 190.32(7.49) 143.55(5.65) 52.69(2.07) 79.58(3.13)
Average precipitation days (≥ 1.0 mm) 11.82 8.36 7.45 9.36 16.73 14.82 16.55 15.18 16.45 21.82 15.73 11.64 13.83
Average relative humidity (%) 75.51 75.3 74.66 76.07 76.22 78.67 76.12 74.88 74.01 74.91 75.59 75.63 75.63
Mean monthly sunshine hours 8.9 10.59 10.57 11.58 12.37 12.75 12.96 11.93 10.88 8.73 7.62 7.65 10.54

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Sister Islands in recent years.

Sister Islands

Sister Islands Temperature by Month

August
29.25°C | 84.65°F
September
29.15°C | 84.47°F
July
28.99°C | 84.18°F
October
28.61°C | 83.5°F
June
28.46°C | 83.23°F
May
27.77°C | 81.99°F
November
27.37°C | 81.27°F
April
26.96°C | 80.53°F
December
26.49°C | 79.68°F
February
25.87°C | 78.57°F
March
25.82°C | 78.48°F
January
25.72°C | 78.3°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 28.0°C (82.4°F) 27.2°C (80.96°F) 27.0°C (80.6°F)
Avg Temperature 28.0°C (82.4°F) 26.93°C (80.47°F) 26.0°C (78.8°F)
Min Temperature 27.0°C (80.6°F) 26.63°C (79.93°F) 26.0°C (78.8°F)
Dew Point Max Average Min
Dew Point 24.0°C (75.2°F) 22.37°C (72.27°F) 20.0°C (68.0°F)
Precipitation Max Average Min Sum
Precipitation 5.9mm | 0.23in 0.9mm | 0.04in 0.0mm | 0in 27.1mm | 1.07in
Snowdepth 0.0mm | 0in 0.0mm | 0in 0.0mm | 0in 0.0mm | 0in
Wind Max Average Min
Wind 31.0kmh | 19.26mph 21.1kmh | 13.11mph 10.0kmh | 6.21mph
Gust Wind 41.0kmh | 25.48mph 28.87kmh | 17.94mph 14.0kmh | 8.7mph
Sea Level Pressure Max Average Min
Sea Level Pressure 5.9mb 0.9mb 0.0mb
Sister Islands

Daily Observations

Time Temperature Dew Point Humidity Wind Speed Pressure Precipitation
April ° C | ° F ° C | ° F % Kph | Mph Hg | Mb Total (mm/in)
2016-04-01 27 | 80.6 23 | 73.4 77 26 | 16.16 29.94 | 1014 0.2 | 0.01
2016-04-02 28 | 82.4 23 | 73.4 77 23 | 14.29 29.91 | 1013 0.3 | 0.01
2016-04-03 27 | 80.6 23 | 73.4 76 12 | 7.46 29.97 | 1015 0.0 | 0.0
2016-04-04 27 | 80.6 23 | 73.4 76 12 | 7.46 30.0 | 1016 0.3 | 0.01
2016-04-05 27 | 80.6 23 | 73.4 75 17 | 10.56 30.0 | 1016 0.8 | 0.03
2016-04-06 27 | 80.6 21 | 69.8 73 31 | 19.26 29.97 | 1015 0.3 | 0.01
2016-04-07 27 | 80.6 20 | 68.0 67 16 | 9.94 29.94 | 1014 0.0 | 0.0
2016-04-08 27 | 80.6 21 | 69.8 70 18 | 11.18 29.94 | 1014 0.0 | 0.0
2016-04-09 27 | 80.6 21 | 69.8 70 23 | 14.29 29.97 | 1015 0.0 | 0.0
2016-04-10 27 | 80.6 22 | 71.6 73 29 | 18.02 30.0 | 1016 0.2 | 0.01
2016-04-11 26 | 78.8 22 | 71.6 74 29 | 18.02 30.0 | 1016 0.1 | 0.0
2016-04-12 27 | 80.6 22 | 71.6 77 26 | 16.16 30.0 | 1016 0.0 | 0.0
2016-04-13 27 | 80.6 22 | 71.6 76 19 | 11.81 29.94 | 1014 0.3 | 0.01
2016-04-14 27 | 80.6 22 | 71.6 75 22 | 13.67 29.94 | 1014 0.4 | 0.02
2016-04-15 26 | 78.8 22 | 71.6 76 25 | 15.53 29.97 | 1015 1.7 | 0.07
2016-04-16 26 | 78.8 22 | 71.6 77 23 | 14.29 29.97 | 1015 1.6 | 0.06
2016-04-17 27 | 80.6 22 | 71.6 77 23 | 14.29 29.97 | 1015 1.9 | 0.07
2016-04-18 27 | 80.6 22 | 71.6 77 23 | 14.29 29.94 | 1014 0.6 | 0.02
2016-04-19 27 | 80.6 22 | 71.6 76 19 | 11.81 29.94 | 1014 1.5 | 0.06
2016-04-20 27 | 80.6 22 | 71.6 76 19 | 11.81 29.94 | 1014 3.4 | 0.13
2016-04-21 27 | 80.6 22 | 71.6 75 24 | 14.91 29.91 | 1013 0.2 | 0.01
2016-04-22 27 | 80.6 23 | 73.4 78 20 | 12.43 29.94 | 1014 4.0 | 0.16
2016-04-23 27 | 80.6 23 | 73.4 77 10 | 6.21 29.94 | 1014 5.9 | 0.23
2016-04-24 27 | 80.6 23 | 73.4 78 17 | 10.56 29.91 | 1013 0.7 | 0.03
2016-04-25 27 | 80.6 23 | 73.4 79 22 | 13.67 29.88 | 1012 0.1 | 0.0
2016-04-26 27 | 80.6 23 | 73.4 79 23 | 14.29 29.85 | 1011 0.2 | 0.01
2016-04-27 27 | 80.6 22 | 71.6 74 18 | 11.18 29.85 | 1011 0.0 | 0.0
2016-04-28 27 | 80.6 24 | 75.2 80 19 | 11.81 29.91 | 1013 1.6 | 0.06
2016-04-29 27 | 80.6 24 | 75.2 82 22 | 13.67 29.88 | 1012 0.7 | 0.03
2016-04-30 27 | 80.6 24 | 75.2 80 23 | 14.29 29.85 | 1011 0.1 | 0.0

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