Saint Marys, Cuyuni-Mazaruni, Guyana Climate

Weather: 20.81°C/69.46°F, Wind SW at 0.1 km/h, 99% Humidity, 0% Chance of rain

Guyana
(Photo by JJ Shev on Unsplash)

Saint Marys Climate Summary

Located at an elevation of 153.14 meters (502.43 feet) above sea level, Saint Marys has a Tropical rainforest climate (Classification: Af). The district’s yearly temperature is 23.9ºC (75.02ºF) and it is -3.89% lower than Guyana’s averages. Saint Marys typically receives about 130.5 millimeters (5.14 inches) of precipitation and has 243.77 rainy days (66.79% of the time) annually.

CountryGuyana
CityCuyuni-Mazaruni
Longitude-60.2110752
Latitude6.4642141
Attitude/Elevation153.14m (502.43ft)
Local timeSunday 10:03
Annual high temperature27.66ºC (81.79ºF)
Annual low temperature18.03ºC (64.45ºF)
Average annual precip.130.5mm (5.14in)
Warmest monthSeptember (29.13ºC / 84.43ºF)
Coldest MonthJanuary (17.4ºC / 63.32ºF)
Wettest MonthAugust (253.92mm / 10.0in)
Driest MonthMarch (36.69mm / 1.44in)
Number of days with rainfall (≥ 1.0 mm)243.77 days (66.79%)
Days with no rain121.22999999999999 days (33.21%)
Humidity84.13%

Climate Saint Marys: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)30.43(86.77)31.41(88.54)33.37(92.07)33.37(92.07)31.41(88.54)31.41(88.54)30.43(86.77)31.41(88.54)32.39(90.3)32.39(90.3)30.43(86.77)29.45(85.01)33.37(92.07)
Average high °C (°F)26.72(80.1)26.66(79.99)28.12(82.62)28.22(82.8)27.15(80.87)26.79(80.22)27.18(80.92)28.33(82.99)29.13(84.43)29.13(84.43)27.89(82.2)26.58(79.84)27.66(81.79)
Daily mean °C (°F)22.78(73.0)22.63(72.73)23.93(75.07)24.29(75.72)23.88(74.98)23.61(74.5)23.77(74.79)24.53(76.15)25.11(77.2)25.07(77.13)24.21(75.58)23.02(73.44)23.9(75.02)
Average low °C (°F)17.4(63.32)17.64(63.75)18.07(64.53)18.48(65.26)18.97(66.15)18.53(65.35)17.96(64.33)17.83(64.09)17.77(63.99)17.66(63.79)18.19(64.74)17.85(64.13)18.03(64.45)
Record low °C (°F)12.76(54.97)0.0(0)14.72(58.5)14.72(58.5)15.7(60.26)15.7(60.26)15.7(60.26)14.72(58.5)15.7(60.26)13.74(56.73)14.72(58.5)14.72(58.5)0.0(0)
Average precipitation mm (inches)39.02(1.54)45.3(1.78)36.69(1.44)68.67(2.7)156.48(6.16)186.94(7.36)243.53(9.59)253.92(10.0)170.02(6.69)134.0(5.28)146.12(5.75)85.29(3.36)130.5(5.14)
Average precipitation days (≥ 1.0 mm)13.3914.6312.1314.5524.4524.9828.3827.8422.5720.6120.8819.3620.32
Average relative humidity (%)83.4483.980.3681.186.4887.7287.0284.4482.0581.7685.0886.1984.12
Mean monthly sunshine hours8.658.479.4710.8910.2210.4511.1211.5111.0210.269.57.49.91

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Saint Marys in recent years.

Saint Marys

Saint Marys Temperature by Month

September
25.11°C | 77.2°F
October
25.07°C | 77.13°F
August
24.53°C | 76.15°F
April
24.29°C | 75.72°F
November
24.21°C | 75.58°F
March
23.93°C | 75.07°F
May
23.88°C | 74.98°F
July
23.77°C | 74.79°F
June
23.61°C | 74.5°F
December
23.02°C | 73.44°F
January
22.78°C | 73.0°F
February
22.63°C | 72.73°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 Temperature32.39°C (90.3°F)30.07°C (86.13°F)27.48°C (81.46°F)
Avg Temperature27.48°C (81.46°F)25.62°C (78.12°F)23.56°C (74.41°F)
Min Temperature20.61°C (69.1°F)17.67°C (63.81°F)15.7°C (60.26°F)
Dew PointMaxAverageMin
Dew Point19.63°C (67.33°F)18.03°C (64.45°F)14.72°C (58.5°F)
PrecipitationMaxAverageMinSum
Precipitation11.78mm | 0.46in1.93mm | 0.08in0.0mm | 0in58.03mm | 2.28in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind5.89kmh | 3.66mph4.42kmh | 2.75mph2.94kmh | 1.83mph
Gust Wind7.85kmh | 4.88mph6.22kmh | 3.86mph3.93kmh | 2.44mph
Sea Level PressureMaxAverageMin
Sea Level Pressure11.78mb1.93mb0.0mb
Saint Marys

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
April° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2020-04-0124.54 | 76.1718.65 | 65.57804.91 | 3.0529.3 | 992.30.49 | 0.02
2020-04-0225.52 | 77.9418.65 | 65.57783.93 | 2.4429.33 | 993.280.0 | 0
2020-04-0326.5 | 79.719.63 | 67.33812.94 | 1.8329.33 | 993.280.59 | 0.02
2020-04-0425.52 | 77.9418.65 | 65.57803.93 | 2.4429.3 | 992.34.32 | 0.17
2020-04-0525.52 | 77.9419.63 | 67.33824.91 | 3.0529.33 | 993.281.67 | 0.07
2020-04-0626.5 | 79.719.63 | 67.33803.93 | 2.4429.36 | 994.260.98 | 0.04
2020-04-0725.52 | 77.9419.63 | 67.33823.93 | 2.4429.36 | 994.261.86 | 0.07
2020-04-0825.52 | 77.9419.63 | 67.33824.91 | 3.0529.33 | 993.282.94 | 0.12
2020-04-0926.5 | 79.718.65 | 65.57774.91 | 3.0529.3 | 992.30.79 | 0.03
2020-04-1025.52 | 77.9418.65 | 65.57783.93 | 2.4429.33 | 993.280.69 | 0.03
2020-04-1125.52 | 77.9417.67 | 63.81754.91 | 3.0529.36 | 994.260.1 | 0.0
2020-04-1225.52 | 77.9416.69 | 62.04765.89 | 3.6629.39 | 995.240.0 | 0
2020-04-1325.52 | 77.9415.7 | 60.26724.91 | 3.0529.39 | 995.240.0 | 0
2020-04-1425.52 | 77.9414.72 | 58.5674.91 | 3.0529.36 | 994.260.1 | 0.0
2020-04-1526.5 | 79.714.72 | 58.5634.91 | 3.0529.33 | 993.280.0 | 0
2020-04-1625.52 | 77.9416.69 | 62.04713.93 | 2.4429.36 | 994.261.67 | 0.07
2020-04-1725.52 | 77.9417.67 | 63.81743.93 | 2.4429.39 | 995.243.53 | 0.14
2020-04-1827.48 | 81.4616.69 | 62.04693.93 | 2.4429.39 | 995.242.75 | 0.11
2020-04-1926.5 | 79.718.65 | 65.57773.93 | 2.4429.36 | 994.262.94 | 0.12
2020-04-2025.52 | 77.9418.65 | 65.57804.91 | 3.0529.36 | 994.265.4 | 0.21
2020-04-2123.56 | 74.4119.63 | 67.33892.94 | 1.8329.39 | 995.2411.78 | 0.46
2020-04-2225.52 | 77.9418.65 | 65.57774.91 | 3.0529.36 | 994.261.86 | 0.07
2020-04-2326.5 | 79.716.69 | 62.04703.93 | 2.4429.36 | 994.260.1 | 0.0
2020-04-2423.56 | 74.4118.65 | 65.57823.93 | 2.4429.36 | 994.265.5 | 0.22
2020-04-2525.52 | 77.9416.69 | 62.04754.91 | 3.0529.36 | 994.260.2 | 0.01
2020-04-2624.54 | 76.1718.65 | 65.57833.93 | 2.4429.36 | 994.264.32 | 0.17
2020-04-2725.52 | 77.9418.65 | 65.57774.91 | 3.0529.39 | 995.240.79 | 0.03
2020-04-2825.52 | 77.9418.65 | 65.57824.91 | 3.0529.36 | 994.261.28 | 0.05
2020-04-2925.52 | 77.9416.69 | 62.04714.91 | 3.0529.36 | 994.260.2 | 0.01
2020-04-3026.5 | 79.718.65 | 65.57774.91 | 3.0529.36 | 994.261.18 | 0.05

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