Siena, Tuscany, Italy Climate

Weather: 17.57°C/63.63°F, Wind SW at 1.24 km/h, 85% Humidity, 0% Chance of rain

Italy
(Photo by Pedro Lastra on Unsplash)
Contents

Siena Climate Summary

Located at an elevation of None meters (0 feet) above sea level, Siena has a Marine west coast, warm summer climate (Classification: Cfb). The district’s yearly temperature is 15.94ºC (60.69ºF) and it is 1.47% higher than Italy’s averages. Siena typically receives about 117.31 millimeters (4.62 inches) of precipitation and has 161.88 rainy days (44.35% of the time) annually.

CountryItaly
CityTuscany
Longitude11.3307574
Latitude43.318809
Attitude/ElevationNonem (0ft)
Local timeTuesday 09:30
Annual high temperature20.06ºC (68.11ºF)
Annual low temperature7.17ºC (44.91ºF)
Average annual precip.117.31mm (4.62in)
Warmest monthAugust (32.24ºC / 90.03ºF)
Coldest MonthJanuary (0.62ºC / 33.12ºF)
Wettest MonthMay (170.3mm / 6.7in)
Driest MonthAugust (69.55mm / 2.74in)
Number of days with rainfall (≥ 1.0 mm)161.88 days (44.35%)
Days with no rain203.12 days (55.65%)
Humidity78.19%

Climate Siena: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)17.56(63.61)22.72(72.9)24.79(76.62)28.92(84.06)30.99(87.78)41.32(106.38)42.35(108.23)41.32(106.38)35.12(95.22)30.99(87.78)24.79(76.62)18.59(65.46)42.35(108.23)
Average high °C (°F)9.64(49.35)10.72(51.3)14.47(58.05)19.06(66.31)21.91(71.44)27.4(81.32)31.31(88.36)32.24(90.03)26.8(80.24)21.13(70.03)15.1(59.18)10.94(51.69)20.06(68.11)
Daily mean °C (°F)5.89(42.6)6.93(44.47)10.29(50.52)14.97(58.95)18.3(64.94)23.77(74.79)27.24(81.03)27.19(80.94)21.99(71.58)16.57(61.83)11.09(51.96)7.0(44.6)15.94(60.69)
Average low °C (°F)0.62(33.12)1.02(33.84)3.12(37.62)5.71(42.28)7.12(44.82)11.16(52.09)14.14(57.45)14.67(58.41)12.19(53.94)8.87(47.97)5.38(41.68)2.05(35.69)7.17(44.91)
Record low °C (°F)-7.23(18.99)-10.33(13.41)-5.16(22.71)-3.1(26.42)0.0(0)4.13(39.43)5.16(41.29)7.23(45.01)6.2(43.16)-1.03(30.15)-6.2(20.84)-8.26(17.13)-10.33(13.41)
Average precipitation mm (inches)94.0(3.7)145.92(5.74)122.5(4.82)106.26(4.18)170.3(6.7)129.13(5.08)78.54(3.09)69.55(2.74)102.21(4.02)123.37(4.86)158.51(6.24)107.45(4.23)117.32(4.62)
Average precipitation days (≥ 1.0 mm)12.7714.3713.2415.1220.2913.811.3611.0812.6713.4313.3310.4213.49
Average relative humidity (%)83.7184.0379.9877.2379.7974.8767.7965.5273.7480.9886.7383.9778.19
Mean monthly sunshine hours7.227.2610.412.9913.9414.5314.7814.2312.347.887.357.1610.85

Climate Graph

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

Siena

Siena Temperature by Month

July
27.24°C | 81.03°F
August
27.19°C | 80.94°F
June
23.77°C | 74.79°F
September
21.99°C | 71.58°F
May
18.3°C | 64.94°F
October
16.57°C | 61.83°F
April
14.97°C | 58.95°F
November
11.09°C | 51.96°F
March
10.29°C | 50.52°F
December
7.0°C | 44.6°F
February
6.93°C | 44.47°F
January
5.89°C | 42.6°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 Temperature33.05°C (91.49°F)25.79°C (78.42°F)17.56°C (63.61°F)
Avg Temperature24.79°C (76.62°F)20.69°C (69.24°F)15.49°C (59.88°F)
Min Temperature17.56°C (63.61°F)11.46°C (52.63°F)7.23°C (45.01°F)
Dew PointMaxAverageMin
Dew Point16.53°C (61.75°F)13.05°C (55.49°F)6.2°C (43.16°F)
PrecipitationMaxAverageMinSum
Precipitation23.86mm | 0.94in4.19mm | 0.16in0.0mm | 0in125.82mm | 4.95in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind19.63kmh | 12.2mph8.81kmh | 5.47mph4.13kmh | 2.57mph
Gust Wind28.92kmh | 17.97mph13.91kmh | 8.64mph5.16kmh | 3.21mph
Sea Level PressureMaxAverageMin
Sea Level Pressure23.86mb4.19mb0.0mb
Siena

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
September° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2012-09-0119.63 | 67.3310.33 | 50.59746.2 | 3.8530.9 | 1046.334.23 | 0.17
2012-09-0220.66 | 69.1912.39 | 54.3806.2 | 3.8531.05 | 1051.491.45 | 0.06
2012-09-0320.66 | 69.1916.53 | 61.75919.3 | 5.7830.93 | 1047.3623.86 | 0.94
2012-09-0421.69 | 71.0416.53 | 61.758512.39 | 7.730.9 | 1046.331.76 | 0.07
2012-09-0521.69 | 71.0416.53 | 61.758610.33 | 6.4230.9 | 1046.3312.91 | 0.51
2012-09-0623.76 | 74.7715.49 | 59.88759.3 | 5.7831.02 | 1050.460.41 | 0.02
2012-09-0724.79 | 76.6215.49 | 59.88726.2 | 3.8531.11 | 1053.560.0 | 0
2012-09-0824.79 | 76.6214.46 | 58.03686.2 | 3.8531.08 | 1052.530.0 | 0
2012-09-0924.79 | 76.6212.39 | 54.3644.13 | 2.5731.02 | 1050.460.0 | 0
2012-09-1024.79 | 76.6214.46 | 58.03745.16 | 3.2131.02 | 1050.460.1 | 0.0
2012-09-1123.76 | 74.7713.43 | 56.17736.2 | 3.8530.99 | 1049.430.0 | 0
2012-09-1221.69 | 71.0414.46 | 58.037914.46 | 8.9930.75 | 1041.163.0 | 0.12
2012-09-1315.49 | 59.889.3 | 48.747518.59 | 11.5530.62 | 1037.036.82 | 0.27
2012-09-1417.56 | 63.6110.33 | 50.596819.63 | 12.230.72 | 1040.130.21 | 0.01
2012-09-1519.63 | 67.3312.39 | 54.37911.36 | 7.0630.87 | 1045.290.31 | 0.01
2012-09-1620.66 | 69.1912.39 | 54.3758.26 | 5.1330.96 | 1048.390.0 | 0
2012-09-1721.69 | 71.0411.36 | 52.45714.13 | 2.5730.96 | 1048.390.0 | 0
2012-09-1822.72 | 72.912.39 | 54.3744.13 | 2.5730.93 | 1047.360.0 | 0
2012-09-1919.63 | 67.3314.46 | 58.03867.23 | 4.4930.84 | 1044.2610.12 | 0.4
2012-09-2017.56 | 63.619.3 | 48.747212.39 | 7.731.08 | 1052.530.93 | 0.04
2012-09-2119.63 | 67.336.2 | 43.16596.2 | 3.8531.14 | 1054.590.0 | 0
2012-09-2218.59 | 65.4611.36 | 52.45836.2 | 3.8531.02 | 1050.460.31 | 0.01
2012-09-2321.69 | 71.0414.46 | 58.03834.13 | 2.5730.99 | 1049.430.41 | 0.02
2012-09-2419.63 | 67.3314.46 | 58.038511.36 | 7.0630.75 | 1041.163.93 | 0.15
2012-09-2519.63 | 67.3314.46 | 58.038410.33 | 6.4230.81 | 1043.231.76 | 0.07
2012-09-2619.63 | 67.3314.46 | 58.038614.46 | 8.9930.81 | 1043.2320.97 | 0.83
2012-09-2717.56 | 63.6111.36 | 52.458013.43 | 8.3530.87 | 1045.296.51 | 0.26
2012-09-2818.59 | 65.4612.39 | 54.3834.13 | 2.5731.02 | 1050.461.03 | 0.04
2012-09-2917.56 | 63.6113.43 | 56.17878.26 | 5.1330.96 | 1048.399.19 | 0.36
2012-09-3020.66 | 69.1914.46 | 58.03854.13 | 2.5730.99 | 1049.4315.6 | 0.61

Siena 11 Year Historical Weather Data

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