Climate and monthly weather forecast
Sebastian, FL

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A wooden structure on the shores of Sebastian in Florida, on an early morning
A wooden structure on the shores of Sebastian in Florida, on an early morning

Weather in January

January, like December, is an agreeable winter month in Sebastian, Florida, with an average temperature varying between 69.4°F (20.8°C) and 59.7°F (15.4°C). January, with its average high-temperature of 69.4°F (20.8°C) and an average low-temperature of 59.7°F (15.4°C), holds the record as the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Sebastian, is another pleasant month, with temperature in the range of an average low of 62.2°F (16.8°C) and an average high of 72°F (22.2°C). The transition into February shows a subtle variation to a still agreeable 72°F (22.2°C) from January's 69.4°F (20.8°C) in the average high-temperature. Weather in February »

Weather in March

March, the first month of the spring in Sebastian, is a warm month, with an average temperature varying between 73.8°F (23.2°C) and 64°F (17.8°C). With the advent of March, Sebastian's high-temperatures adjust to a warm 73.8°F (23.2°C), closely aligning with the preceding month. Weather in March »

Weather in April

April, the same as March, is a moderately hot spring month in Sebastian, Florida, with an average temperature fluctuating between 78.1°F (25.6°C) and 69.6°F (20.9°C). The shift into April reveals an average high-temperature of a still warm 78.1°F (25.6°C), closely mirroring March's climate. Weather in April »

Weather in May

The last month of the spring, May, is another warm month in Sebastian, Florida, with an average temperature varying between 73°F (22.8°C) and 81.3°F (27.4°C). The shift into May records an average high-temperature of a still warm 81.3°F (27.4°C), subtly varied from April's 78.1°F (25.6°C). Weather in May »

Weather in June

June, the first month of the summer in Sebastian, is also a moderately hot month, with an average temperature fluctuating between 84.9°F (29.4°C) and 77.2°F (25.1°C). With the onset of June, the average high-temperature registers at a still warm 84.9°F (29.4°C), subtly different from May's 81.3°F (27.4°C). Weather in June »

Weather in July

July in Sebastian, Florida, is a hot summer month, with temperature in the range of an average high of 86.5°F (30.3°C) and an average low of 78.4°F (25.8°C). The shift into July finds Sebastian, Florida, at an average high-temperature of a hot 86.5°F (30.3°C), closely comparable to June's conditions. Weather in July »

Weather in August

The last month of the summer, August, is another hot month in Sebastian, Florida, with an average temperature ranging between max 87.1°F (30.6°C) and min 79°F (26.1°C). In Sebastian, the peak average temperatures are observed in August, with a high of 87.1°F (30.6°C) and a low of 79°F (26.1°C). During August, the heat index is appraised at a very hot 102.2°F (39°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Sebastian, Florida, with temperature in the range of an average high of 85.1°F (29.5°C) and an average low of 77.7°F (25.4°C). Sebastian, Florida, experiences a transition to a moderately hot 85.1°F (29.5°C) in average high-temperatures with the arrival of September, not greatly differing from August's 87.1°F (30.6°C). Weather in September »

Weather in October

October, like September, in Sebastian, Florida, is another warm autumn month, with temperature in the range of an average low of 74.3°F (23.5°C) and an average high of 81.3°F (27.4°C). In October, Sebastian's weather conditions record an average high-temperature of a still warm 81.3°F (27.4°C), demonstrating little divergence from the preceding month. Weather in October »

Weather in November

November, the last month of the autumn in Sebastian, is another warm month, with an average temperature fluctuating between 68.9°F (20.5°C) and 75.9°F (24.4°C). The start of November signals a gentle decrease in the average high-temperature, transitioning from 81.3°F (27.4°C) in October to a still moderately hot 75.9°F (24.4°C). Weather in November »

Weather in December

December, the first month of the winter in Sebastian, is still a pleasant month, with temperature in the range of an average high of 73°F (22.8°C) and an average low of 64°F (17.8°C). An average high-temperature of a pleasant 73°F (22.8°C) marks December, exhibiting a close resemblance to the conditions in November. Weather in December »
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest in Sebastian?

Sebastian, Florida, experiences its lowest temperatures in January, with an average peak of 69.4°F (20.8°C) and a low of 59.7°F (15.4°C).

How much does it rain in Sebastian?

Throughout the year, in Sebastian, there are 205.2 rainfall days, and 38.31" (973mm) of precipitation is accumulated.

What is the month with the least sunshine in Sebastian?

The month with the least sunshine in Sebastian is January, with an average of 5.9h of sunshine.

What is the month with the lowest UV index in Sebastian?

January, February and December, with an average maximum UV index of 5, are months with the lowest UV index in Sebastian, Florida.

What is the driest month in Sebastian?

The month with the least rainfall in Sebastian is February, when the rain falls for 10.4 days and typically collects 1.06" (27mm) of precipitation.

What is the least humid month in Sebastian?

March is the least humid month in Sebastian, with an average relative humidity of 72%.

When is Daylight Saving Time (DST) in Sebastian?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What is the month with the highest UV index in Sebastian?

The months with the highest UV index in Sebastian, Florida, are May through September, with an average maximum UV index of 7.

What is the most humid month in Sebastian?

The months with the highest humidity are June through August, with an average relative humidity of 79%.

When are the longest days in Sebastian?

The month with the longest days in Sebastian is June, with an average of 13h and 54min of daylight.

What month has the most sunshine in Sebastian?

With an average of 10.9h of sunshine, July has the most sunshine of the year in Sebastian.

What part of the year is the hottest in Sebastian?

August, recognised by an average high temperature of 87.1°F (30.6°C) and a low of 79°F (26.1°C), is Sebastian's warmest month.

What is the rainiest month in Sebastian?

The month with the most rainfall in Sebastian is August, when the rain falls for 25 days and typically aggregates up to 6.89" (175mm) of precipitation.

What is the month with the shortest days in Sebastian?

With an average of 10h and 24min of daylight, December has the shortest days of the year.

Average temperature
Sebastian, FL

Average temperature - Sebastian, FL

The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is January (69.4°F).

The month with the highest average low temperature is August (79°F).
The coldest month (with the lowest average low temperature) is January (59.7°F).

Average pressure
Sebastian, FL

Average pressure - Sebastian, FL

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).

Average wind speed
Sebastian, FL

Average wind speed - Sebastian, FL

The windiest month (with the highest average wind speed) is November (10.6mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).

Average humidity
Sebastian, FL

Average humidity - Sebastian, FL

The months with the highest relative humidity are June, July and August (79%).
The month with the lowest relative humidity is March (72%).

Average rainfall
Sebastian, FL

Average rainfall - Sebastian, FL

The wettest month (with the highest rainfall) is August (6.89").
The driest month (with the least rainfall) is February (1.06").

Average rainfall days
Sebastian, FL

Average rainfall days - Sebastian, FL

The month with the highest number of rainy days is August (25 days).
The month with the least rainy days is February (10.4 days).

Average daylight / Average sunshine
Sebastian, FL

Average daylight / Average sunshine - Sebastian, FL

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).

Average sunshine days
Sebastian, FL

Average sunshine days - Sebastian, FL

The month with the most sunshine days is January (16.8 days).
The month with the least sunshine days is August (3.9 days).

Average UV index
Sebastian, FL

Average UV index - Sebastian, FL

The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February and December (UV index 5).

Average visibility
Sebastian, FL

Average visibility - Sebastian, 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).

Sebastian, Florida, USA

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