August 2018
Looking west across Lyme Bay to Dawlish and Torbay beyond, on a warm summer's day

A fairly warm month with average rainfall and sunshine.
Summary for August 2018
Mean Max: 22.7ºC (+2.0ºC)
Mean Min: 12.4ºC (-0.5ºC)
Mean: 17.5ºC (+0.7ºC)
Mean (integrated):  16.8ºC  
High Max: 29.0ºC 3rd 
Low Max: 17.5ºC 11th
High Min: 18.0ºC 20th
Low Min: 5.3ºC 25th
Mean Grass Min: 10.5ºC  
Grass Min: 3.9ºC 25th
Days  >20°C 27 Days  
Days >15°C 31 Days  
Nights  >10°C 22 Days  
Nights  >5°C 31 Days  
Rain Total (gauge): 57.0 mm (100%)
Rain Total (tipping bucket): 57.8 mm (102%)
Rain Days >0.2 mm: 9 Days  
Rain Days >1.0 mm: 8 Days  
Max 24 hrs: 27.0 mm 12th
Days without any rain: 22  
Air Frost: 0 Days  
Grass Frost: 0 Days  
Snow Falling: 0 Days  
Snow (50%) @ 9am: 0 Days  
Ice Days: 0 Days  
Thunder Heard: 2 Days  
Hail <5 mm: 0 Days  
Hail >5 mm: 0 Days  
Fog @ 9am: 0 Days  
Total Monthly Sunshine: 192.5 Hours (99%)
Most Sunshine in a Day: 14.3 Hours 5th
Average Daily Sunshine: 6.2 Hours  
Sunless Days: 1 Days  
Cloudless Days: 2 Days  
Total Possible Sunshine: 448.7 Hours  
Percentage of Total Sun: 43%  
Average Sunny Interval: 19.2 mins
Maximum UV Index: 8.0 2nd 
Mean Soil Temp @ 10 cm: 18.8ºC  
Min Soil Temp @ 10 cm: 16.5ºC 31st
Max Soil Temp @ 10 cm: 21.0ºC 4th
Mean Soil Temp @ 30 cm: 18.7ºC  
Min Soil Temp @ 30 cm: 17.2ºC 31st
Max Soil Temp @ 30 cm: 20.2ºC 5th
Mean Soil Temp @ 100 cm: 17.6ºC  
Min Soil Temp @ 100 cm: 17.2ºC 14th
Max Soil Temp @ 100 cm: 17.9ºC 9th
Ave 10 Min Wind >39 mph: 0.00 Days  
N: 2.91 Days 9%
NE: 0.41 Days 1%
E: 0.13 Days 0%
SE: 0.21 Days 1%
S: 4.85 Days 16%
SW: 4.22 Days 14%
W: 3.03 Days 10%
NW: 7.22 Days 23%
Calm: 8.01 Days 26%
Wind Chill Low: 4.8ºC 11th
Mean Wind: 2.9 mph  
Max Gust: 34 mph 26th
Mean Cloud Cover: 52%  
Mean RH @ 9am: 92%  
Rain >0.1mm/hour: 15.4 Hours  
Frost Duration: 0.0 Hours  
Air Frost in a Day: 0.0 Hours 1st
Mean Sea Temperature: 18.3ºC (+0.3ºC)
Normal for Month: 18.0ºC  
Max Sea Temperature: 20.2ºC 3rd
Min Sea Temperature: 17.1ºC 31st
Mean Pressure @ 9am: 1017.5 hPa  
Mean Pressure: 1017.2 hPa  
Max Pressure: 1024.3 hPa 30th
Min Pressure: 1003.8 hPa 26th
Max Change in 24 hours: 13.3 hPa 26th
Radiation Daily Mean: 15.48 MJ/m²  
Max Daily Value: 26.15 MJ/m² 5th
Min Daily Value: 4.81 MJ/m² 26th
Number of Days with Data: 31 Days  
1-Hour Maximum: 849 W/m² 3rd 
Starting Time of the Hour:   13:00
Max Dewpoint: 21.5ºC 3rd 
Min Dewpoint: 4.4ºC 25th
Mean Dewpoint: 13.8ºC  
Max Humidity: 100% 1st
Min Humidity: 44% 25th
Mean Humidity: 79%  
 
 
 
Weather Data for Otter Valley, Devon. August 2018 
  Temp oC Grass Hum (%) Soil oC (cm) Soil DP (oC) Wind (mph) Rain Air (hPa) W/m² UV Sun Frost Sea Observations
  Min Max Min Min Max 10 30 100 (cb) Min Max Max Ave Run mm Min Max Max Max Hours Hours Temp
1 9.4 22.2 8.3 64 98 19.0 19.1 17.8 45.7 8.5 16.2 23 4.6 109 0.0 1019 1022 866 7.2 12.4 0.0 17.8 Sunny intervals all day
2 13.3 24.7 11.1 67 98 19.4 19.0 17.8 50.2 11.8 19.1 15 2.2 54 0.0 1022 1024 918 8.0 9.2 0.0 18.1 Sunny intervals all day
3 14.3 29.0 12.2 59 98 20.2 19.4 17.8 53.1 13.3 21.5 14 1.8 44 0.0 1021 1024 1009 7.7 5.5 0.0 18.6 Sunny intervals all day
4 17.1 28.9 15.6 46 96 21.0 20.0 17.8 55.4 14.8 19.6 12 2.1 51 0.0 1022 1024 889 7.4 10.1 0.0 18.8 Sunny intervals all day
5 12.6 26.0 11.1 47 97 20.6 20.2 17.8 58.6 11.7 18.2 16 2.3 54 0.0 1019 1024 799 6.5 14.3 0.0 19.0 Sunny all day
6 11.2 27.2 9.4 56 98 20.5 20.0 17.8 61.8 10.1 19.2 13 2.1 51 0.0 1012 1019 818 6.3 10.1 0.0 19.4 Sunny intervals all day
7 12.1 25.5 11.1 58 97 20.4 20.2 17.8 65.1 10.6 17.1 16 3.3 79 0.0 1007 1012 1005 6.9 10.0 0.0 19.3 Sunny intervals all day
8 11.3 23.0 8.3 53 94 19.4 19.6 17.9 69.1 9.4 15.3 30 2.8 68 1.2 1008 1013 980 7.4 5.1 0.0 19.1 Sunny ints am, showers pm
9 12.2 20.6 10.6 52 97 18.9 19.1 17.9 48.6 9.2 15.7 23 1.6 39 5.0 1013 1017 890 6.0 7.4 0.0 18.8 Sunny ints all day, t-storm pm
10 8.7 21.2 6.1 56 98 18.1 18.5 17.8 13.2 7.7 16.1 23 3.1 76 1.6 1017 1021 908 6.4 5.5 0.0 18.6 Sunshine & showers
11 5.8 17.5 4.4 74 98 17.4 18.1 17.8 29.8 4.9 16.6 25 3.1 74 4.4 1017 1023 195 2.7 0.0 0.0 18.1 Light, patchy rain all day
12 16.1 20.7 15.6 86 98 18.0 17.8 17.8 10.4 15.3 18.9 31 7.8 186 27.0 1006 1017 528 3.6 2.5 0.0 17.9 Cloudy am, sunny int pm
13 14.8 22.8 12.8 65 98 18.5 18.3 17.7 4.0 14.0 17.5 20 3.2 78 0.0 1006 1013 798 5.8 10.2 0.0 18.1 Sunny intervals all day
14 12.5 23.8 10.0 64 98 18.5 18.3 17.2 4.9 11.6 18.3 17 2.4 57 0.0 1013 1019 1028 6.8 8.3 0.0 18.3 Sunny intervals all day
15 16.9 24.4 15.0 64 90 19.2 18.5 17.2 9.2 14.2 18.2 22 5.0 119 0.0 1016 1020 795 6.2 2.2 0.0 18.2 Sunny intervals all day
16 15.3 22.9 11.1 50 96 19.3 18.9 17.2 8.6 10.3 16.4 24 4.9 118 8.4 1012 1017 972 5.9 7.5 0.0 18.3 Rain early am then sunny ints
17 9.3 21.7 8.3 57 98 18.4 18.5 17.2 5.4 8.4 14.3 15 1.8 44 0.0 1017 1022 967 6.7 3.8 0.0 18.2 Sunny intervals all day
18 15.2 21.9 12.8 73 93 18.8 18.4 17.2 9.7 12.4 17.7 15 3.4 81 0.0 1021 1022 417 4.9 1.6 0.0 18.1 Brief sunny intervals all day
19 15.7 24.7 13.3 71 94 19.3 18.9 17.2 13.2 14.2 19.9 19 4.5 107 0.0 1019 1021 438 6.5 1.9 0.0 18.0 Brief sunny intervals all day
20 18.0 23.7 17.2 73 94 19.8 19.0 17.2 15.7 16.4 20.5 12 1.5 37 0.0 1019 1021 447 4.7 3.1 0.0 18.4 Sunny intervals all day
21 16.3 23.8 15.6 66 94 20.1 19.4 17.4 17.1 15.0 18.1 16 2.0 49 0.0 1018 1020 951 6.1 8.0 0.0 18.6 Sunny intervals all day
22 16.4 20.9 13.3 78 93 20.0 19.4 17.8 18.3 14.6 18.0 12 1.4 34 0.0 1016 1019 372 3.7 1.5 0.0 18.7 Brief sunny intervals all day
23 16.6 21.7 12.8 57 94 19.8 19.4 17.8 19.2 10.6 17.6 19 3.4 83 0.0 1013 1017 704 5.0 5.3 0.0 18.9 Sunny intervals all day
24 8.6 19.9 6.7 54 97 18.4 19.1 17.8 21.1 7.3 13.4 20 2.4 57 1.0 1014 1017 937 5.8 4.6 0.0 18.5 Sunshine & showers
25 5.3 21.3 3.9 44 98 17.3 18.2 17.8 22.6 4.4 11.9 15 1.8 44 0.0 1014 1017 918 4.9 10.2 0.0 17.8 Sunny intervals all day
26 7.4 19.8 5.6 80 98 16.9 17.6 17.8 24.0 6.2 18.5 34 5.0 120 6.6 1004 1017 308 2.8 0.2 0.0 17.7 Rain, int all day. Dry evening
27 13.9 18.9 11.7 68 90 17.6 17.7 17.4 25.0 10.6 14.7 17 3.2 78 0.0 1006 1018 497 5.1 2.2 0.0 17.6 Brief sunny intervals all day
28 11.2 20.9 9.4 59 95 17.8 17.8 17.2 25.6 9.9 13.7 14 1.1 26 0.0 1015 1019 855 4.4 4.4 0.0 17.7 Sunny intervals all day
29 11.1 20.5 10.0 66 98 17.7 17.8 17.2 26.5 8.8 16.0 19 2.3 58 2.6 1014 1023 605 5.1 8.1 0.0 17.8 Sunny intervals all day
30 8.6 20.2 7.2 49 97 17.1 17.5 17.2 27.7 5.0 12.3 11 0.5 20 0.0 1022 1024 669 4.0 5.8 0.0 17.6 Sunny intervals all day
31 5.8 22.1 5.0 55 88 16.5 17.2 17.2 28.9 10.7 14.1 14 3.1 32 0.0 1022 1023 709 4.9 11.7 0.0 17.5 Sunny all day
12.4 22.7 10.5 62 96 18.8 18.7 17.6 28.6 10.7 16.9 19 2.9 2125 57.8 1015 1020 748 5.7 192.5 0.0 18.3  
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