Climate and monthly weather forecastSebastian, TX
Climate and monthly weather forecast
Weather in January
January, the same as December, in Sebastian, Texas, is an agreeable winter month, with an average temperature varying between 68.5°F (20.3°C) and 54.1°F (12.3°C). In Sebastian, the lowest average temperatures are observed in January, with a high of 68.5°F (20.3°C) and a low of 54.1°F (12.3°C). Weather in January »Weather in February
February, the last month of the winter in Sebastian, is another pleasant month, with an average temperature ranging between min 58.6°F (14.8°C) and max 73°F (22.8°C). February ushers in an average high-temperature of a still pleasant 73°F (22.8°C), aligning closely with the preceding month. Weather in February »Weather in March
March, the first month of the spring in Sebastian, is a moderately hot month, with temperature in the range of an average high of 78.8°F (26°C) and an average low of 63.1°F (17.3°C). Sebastian's weather in March presents a minor rise in the average high-temperature, moving from an agreeable 73°F (22.8°C) in February to a moderately hot 78.8°F (26°C). Weather in March »Weather in April
April, like March, in Sebastian, Texas, is a moderately hot spring month, with an average temperature ranging between max 84.7°F (29.3°C) and min 68.5°F (20.3°C). The start of April brings a subtle rise in the average high-temperature, moving from a moderately hot 78.8°F (26°C) in March to a still warm 84.7°F (29.3°C). Weather in April »Weather in May
The last month of the spring, May, is a tropical month in Sebastian, Texas, with an average temperature varying between 73.2°F (22.9°C) and 88.5°F (31.4°C). Sebastian, Texas, sees the arrival of May with an average high-temperature of a tropical 88.5°F (31.4°C), indicating a subtle variation from April. Weather in May »Weather in June
The first month of the summer, June, is also a hot month in Sebastian, Texas, with an average temperature varying between 76.6°F (24.8°C) and 92.5°F (33.6°C). Sebastian, Texas, experiences a recorded average high-temperature of a still hot 92.5°F (33.6°C) in June, closely aligned with May's 88.5°F (31.4°C). Weather in June »Weather in July
July, like June, is another tropical summer month in Sebastian, Texas, with temperature in the range of an average high of 94.5°F (34.7°C) and an average low of 77.9°F (25.5°C). The start of July sees the average high-temperature at a still hot 94.5°F (34.7°C), showing little difference from June's 92.5°F (33.6°C). Weather in July »Weather in August
August, the last month of the summer in Sebastian, is a fiery hot month, with temperature in the range of an average low of 79.5°F (26.4°C) and an average high of 95.5°F (35.3°C). Temperature records mark August as the warmest month, with highs averaging 95.5°F (35.3°C) and lows at 79.5°F (26.4°C). The heat index for August is appraised at a burning hot 120.2°F (49°C). Weather in August »Weather in September
The first month of the autumn, September, is still a tropical month in Sebastian, Texas, with an average temperature varying between 90.5°F (32.5°C) and 77.9°F (25.5°C). September notes an average high-temperature of a hot 90.5°F (32.5°C), subtly differing from August's 95.5°F (35.3°C). Weather in September »Weather in October
October, like September, in Sebastian, Texas, is a moderately hot autumn month, with an average temperature varying between 71.4°F (21.9°C) and 85.1°F (29.5°C). October signals a slight drop in average high-temperature, sliding from September's hot 90.5°F (32.5°C) to a warm 85.1°F (29.5°C). Weather in October »Weather in November
The last month of the autumn, November, is also a moderately hot month in Sebastian, Texas, with an average temperature fluctuating between 62.6°F (17°C) and 76.5°F (24.7°C). The arrival of November corresponds with a minor reduction in the average high-temperature, down from October's 85.1°F (29.5°C) to a still warm 76.5°F (24.7°C). Weather in November »Weather in December
The first month of the winter, December, is also an agreeable month in Sebastian, Texas, with an average temperature varying between 56.8°F (13.8°C) and 70.3°F (21.3°C). December implies a soft temperature shift, with average high-temperatures reducing from November's moderately hot 76.5°F (24.7°C) to a pleasant 70.3°F (21.3°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Sebastian, TX
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (68.5°F).
The month with the highest average low temperature is August (79.5°F).
The coldest month (with the lowest average low temperature) is January (54.1°F).
Average pressure
Sebastian, TX
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.03"Hg - Average pressure in March:
29.99"Hg - Average pressure in April:
29.89"Hg - Average pressure in May:
29.88"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.9"Hg - Average pressure in September:
29.91"Hg - Average pressure in October:
29.96"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.07"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed
Sebastian, TX
- Average wind speed in January:
9.9mph - Average wind speed in February:
10.9mph - Average wind speed in March:
11.7mph - Average wind speed in April:
11.9mph - Average wind speed in May:
11.9mph - Average wind speed in June:
10.6mph
- Average wind speed in July:
11.2mph - Average wind speed in August:
10.2mph - Average wind speed in September:
8.9mph - Average wind speed in October:
9.3mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.9mph
The windiest months (with the highest average wind speed) are April and May (11.9mph).
The calmest month (with the lowest average wind speed) is September (8.9mph).
Average humidity
Sebastian, TX
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (65%).
Average rainfall
Sebastian, TX
- Average rainfall in January:
0.91" - Average rainfall in February:
0.59" - Average rainfall in March:
0.83" - Average rainfall in April:
0.79" - Average rainfall in May:
1.5" - Average rainfall in June:
1.69"
- Average rainfall in July:
1.77" - Average rainfall in August:
0.83" - Average rainfall in September:
2.64" - Average rainfall in October:
1.38" - Average rainfall in November:
1.26" - Average rainfall in December:
1.1"
The wettest month (with the highest rainfall) is September (2.64").
The driest month (with the least rainfall) is February (0.59").
Average rainfall days
Sebastian, TX
- Average rainfall days in January:
10.3 days - Average rainfall days in February:
8.3 days - Average rainfall days in March:
9.4 days - Average rainfall days in April:
10.2 days - Average rainfall days in May:
10.6 days - Average rainfall days in June:
10.5 days
- Average rainfall days in July:
7.4 days - Average rainfall days in August:
7.6 days - Average rainfall days in September:
17.2 days - Average rainfall days in October:
11.4 days - Average rainfall days in November:
11.5 days - Average rainfall days in December:
10.8 days
The month with the highest number of rainy days is September (17.2 days).
The month with the least rainy days is July (7.4 days).
Average daylight / Average sunshine
Sebastian, TX
- Average daylight in January:
10h and 42min - Average daylight in February:
11h and 18min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 48min - Average daylight in May:
13h and 24min - Average daylight in June:
13h and 48min
- Average daylight in July:
13h and 36min - Average daylight in August:
13h and 0min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 30min - Average daylight in November:
10h and 54min - Average daylight in December:
10h and 30min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in January:
6h and 18min - Average sunshine in February:
7h and 0min - Average sunshine in March:
7h and 30min - Average sunshine in April:
8h and 18min - Average sunshine in May:
9h and 54min - Average sunshine in June:
10h and 54min
- Average sunshine in July:
11h and 18min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 42min - Average sunshine in October:
7h and 36min - Average sunshine in November:
5h and 30min - Average sunshine in December:
5h and 6min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days
Sebastian, TX
- Average sunshine days in January:
18 days - Average sunshine days in February:
16.8 days - Average sunshine days in March:
18.6 days - Average sunshine days in April:
17.2 days - Average sunshine days in May:
18.4 days - Average sunshine days in June:
17 days
- Average sunshine days in July:
22.1 days - Average sunshine days in August:
21.4 days - Average sunshine days in September:
10.6 days - Average sunshine days in October:
17 days - Average sunshine days in November:
15.7 days - Average sunshine days in December:
16.5 days
The month with the most sunshine days is July (22.1 days).
The month with the least sunshine days is September (10.6 days).
Average UV index
Sebastian, TX
The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 4).
Average cloud cover
Sebastian, TX
The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility
Sebastian, TX
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).





