Climate and monthly weather forecastStock Island, FL
Climate and monthly weather forecast
Weather in January
January, like December, is another pleasant winter month in Stock Island, Florida, with an average temperature fluctuating between 72.7°F (22.6°C) and 68.5°F (20.3°C). In Stock Island, the lowest average temperatures are observed in January, with a high of 72.7°F (22.6°C) and a low of 68.5°F (20.3°C). Weather in January »Weather in February
The last month of the winter, February, is also an agreeable month in Stock Island, Florida, with temperature in the range of an average high of 73°F (22.8°C) and an average low of 69.8°F (21°C). Stock Island in February witnesses an average high-temperature of a still agreeable 73°F (22.8°C), indicating a slight variation from January's 72.7°F (22.6°C). Weather in February »Weather in March
March, the first month of the spring in Stock Island, is a warm month, with an average temperature varying between 73.9°F (23.3°C) and 70.5°F (21.4°C). Upon the beginning of March, Stock Island's high-temperatures register at a moderately hot 73.9°F (23.3°C), closely mirroring the preceding month. Weather in March »Weather in April
April, like March, in Stock Island, Florida, is a moderately hot spring month, with an average temperature varying between 77.4°F (25.2°C) and 74.8°F (23.8°C). The commencement of April notes an average high-temperature of a still warm 77.4°F (25.2°C), exhibiting little difference from the previous month. Weather in April »Weather in May
May, the last month of the spring in Stock Island, is another warm month, with temperature in the range of an average low of 77.9°F (25.5°C) and an average high of 80.2°F (26.8°C). Stock Island's shift into May is marked by a subtle change to a still warm 80.2°F (26.8°C) from April's 77.4°F (25.2°C) in temperature. Weather in May »Weather in June
The first month of the summer, June, is still a warm month in Stock Island, Florida, with an average temperature varying between 81.5°F (27.5°C) and 83.3°F (28.5°C). The onset of June notes an average high-temperature of a still moderately hot 83.3°F (28.5°C), subtly shifted from May's 80.2°F (26.8°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Stock Island, Florida, with an average temperature fluctuating between 82.8°F (28.2°C) and 84.7°F (29.3°C). The beginning of July records an average high-temperature of a still moderately hot 84.7°F (29.3°C), marking a negligible difference from June's 83.3°F (28.5°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Stock Island, Florida, with an average temperature ranging between min 82.9°F (28.3°C) and max 85.3°F (29.6°C). During the warmest month, August, temperatures average a high of 85.3°F (29.6°C) and a low of 82.9°F (28.3°C). The heat index for August is computed to be a very hot 95°F (35°C). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Stock Island, Florida, with temperature in the range of an average high of 84.4°F (29.1°C) and an average low of 82.2°F (27.9°C). At the start of September, Stock Island's average high-temperature reaches a still moderately hot 84.4°F (29.1°C), subtly different from the preceding month. Weather in September »Weather in October
October, the same as September, is another warm autumn month in Stock Island, Florida, with an average temperature fluctuating between 79.7°F (26.5°C) and 82°F (27.8°C). As October takes hold, the average high-temperature is a still warm 82°F (27.8°C), nearly mirroring that of the previous month. Weather in October »Weather in November
The last month of the autumn, November, is another warm month in Stock Island, Florida, with an average temperature ranging between max 77.9°F (25.5°C) and min 74.8°F (23.8°C). Stock Island experiences an average high-temperature of a still warm 77.9°F (25.5°C) with the onset of November, subtly varied from October's 82°F (27.8°C). Weather in November »Weather in December
The first month of the winter, December, is still a warm month in Stock Island, Florida, with temperature in the range of an average low of 72.5°F (22.5°C) and an average high of 75.2°F (24°C). The beginning of December records an average high-temperature of a still moderately hot 75.2°F (24°C), marking a negligible difference from November's 77.9°F (25.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Stock Island, FL
The warmest month (with the highest average high temperature) is August (85.3°F).
The month with the lowest average high temperature is January (72.7°F).
The month with the highest average low temperature is August (82.9°F).
The coldest month (with the lowest average low temperature) is January (68.5°F).
Average pressure
Stock Island, FL
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
30.01"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.98"Hg
- Average pressure in July:
30.02"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.93"Hg - Average pressure in October:
29.93"Hg - Average pressure in November:
30.01"Hg - Average pressure in December:
30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are September and October (29.93"Hg).
Average wind speed
Stock Island, FL
- Average wind speed in January:
14.4mph - Average wind speed in February:
13.4mph - Average wind speed in March:
14mph - Average wind speed in April:
13.1mph - Average wind speed in May:
12.2mph - Average wind speed in June:
10.3mph
- Average wind speed in July:
9.5mph - Average wind speed in August:
10.1mph - Average wind speed in September:
10.3mph - Average wind speed in October:
13.7mph - Average wind speed in November:
14.4mph - Average wind speed in December:
13.8mph
The windiest months (with the highest average wind speed) are January and November (14.4mph).
The calmest month (with the lowest average wind speed) is July (9.5mph).
Average humidity
Stock Island, FL
The month with the highest relative humidity is February (78%).
The months with the lowest relative humidity are July, August and September (74%).
Average rainfall
Stock Island, FL
- Average rainfall in January:
1.34" - Average rainfall in February:
1.1" - Average rainfall in March:
0.67" - Average rainfall in April:
1.54" - Average rainfall in May:
3.5" - Average rainfall in June:
3.46"
- Average rainfall in July:
3.66" - Average rainfall in August:
4.33" - Average rainfall in September:
5.12" - Average rainfall in October:
4.21" - Average rainfall in November:
1.46" - Average rainfall in December:
1.22"
The wettest month (with the highest rainfall) is September (5.12").
The driest month (with the least rainfall) is March (0.67").
Average rainfall days
Stock Island, FL
- Average rainfall days in January:
12.3 days - Average rainfall days in February:
11 days - Average rainfall days in March:
11.7 days - Average rainfall days in April:
13.4 days - Average rainfall days in May:
16.5 days - Average rainfall days in June:
19.5 days
- Average rainfall days in July:
20.7 days - Average rainfall days in August:
23.1 days - Average rainfall days in September:
23.1 days - Average rainfall days in October:
20.1 days - Average rainfall days in November:
14.4 days - Average rainfall days in December:
13.4 days
The months with the highest number of rainy days are August and September (23.1 days).
The month with the least rainy days is February (11 days).
Average sea temperature
Stock Island, FL
The best month for swimming (with the highest average sea temperature) is August (86.9°F).
The coldest months (with the lowest average sea temperature) are January and February (71.2°F).
Average daylight / Average sunshine
Stock Island, FL
- Average daylight in January:
10h and 48min - Average daylight in February:
11h and 18min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 42min - Average daylight in May:
13h and 18min - Average daylight in June:
13h and 36min
- Average daylight in July:
13h and 30min - Average daylight in August:
13h and 0min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 36min - Average daylight in November:
11h and 0min - Average daylight in December:
10h and 36min
The month with the longest days is June (Average daylight: 13h and 36min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in January:
7h and 12min - Average sunshine in February:
8h and 42min - Average sunshine in March:
8h and 54min - Average sunshine in April:
9h and 42min - Average sunshine in May:
10h and 54min - Average sunshine in June:
10h and 36min
- Average sunshine in July:
11h and 0min - Average sunshine in August:
9h and 42min - Average sunshine in September:
9h and 0min - Average sunshine in October:
7h and 24min - Average sunshine in November:
6h and 36min - Average sunshine in December:
6h and 18min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days
Stock Island, FL
- Average sunshine days in January:
14 days - Average sunshine days in February:
14.1 days - Average sunshine days in March:
17 days - Average sunshine days in April:
13.6 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
7.6 days
- Average sunshine days in July:
8.5 days - Average sunshine days in August:
6.2 days - Average sunshine days in September:
4.5 days - Average sunshine days in October:
7.2 days - Average sunshine days in November:
11.8 days - Average sunshine days in December:
12.2 days
The month with the most sunshine days is March (17 days).
The month with the least sunshine days is September (4.5 days).
Average UV index
Stock Island, FL
The months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The month with the lowest UV index is January (UV index 5).
Average cloud cover
Stock Island, FL
The month with the most cloud cover is January (Cloud cover 34).
The month with the least cloud cover is April (Cloud cover 23).
Average visibility
Stock Island, FL
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





