Sebastian 7-day weather forecast

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December 15, 2025
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Sebastian 7-day weather forecast

Stacker created the forecast for Sebastian, Florida using data from OpenWeather. This week's high is 81 °F on Friday, while the low is 60 °F on Monday. There are expected to be 0 sunny days and rain on 6 days this week.

NWS Melbourne FL has issued a wind advisory until Monday at 09:00 AM and a high surf advisory until Tuesday at 07:00 PM.

Monday, December 15

- High of 65 °F, low of 60 °F (75% humidity)
- Overcast with a 100% chance of rain (1 mm of rain)
- Strong breeze (25 mph wind)
- Sunrise at 7:05 AM, sunset at 5:28 PM
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1 / 6
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Tuesday, December 16

- High of 70 °F, low of 63 °F (57% humidity)
- Mostly cloudy with a 0% chance of rain
- Moderate risk of harm from sun exposure (2 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 7:06 AM, sunset at 5:29 PM
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Wednesday, December 17

- High of 74 °F, low of 68 °F (66% humidity)
- Overcast with a 100% chance of rain (2 mm of rain)
- Moderate risk of harm from sun exposure (4 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 7:06 AM, sunset at 5:29 PM
3 / 6
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Thursday, December 18

- High of 78 °F, low of 68 °F (61% humidity)
- Mostly cloudy with a 63% chance of rain (0 mm of rain)
- Moderate risk of harm from sun exposure (4 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 7:07 AM, sunset at 5:30 PM
4 / 6
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Friday, December 19

- High of 81 °F, low of 68 °F (60% humidity)
- Mostly cloudy with a 54% chance of rain (0 mm of rain)
- Moderate risk of harm from sun exposure (5 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 7:07 AM, sunset at 5:30 PM
- New moon
5 / 6
Nataliia K // Shutterstock

Saturday, December 20

- High of 78 °F, low of 69 °F (71% humidity)
- Partly cloudy with a 38% chance of rain (1 mm of rain)
- Moderate risk of harm from sun exposure (5 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 7:08 AM, sunset at 5:30 PM
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Deborah Kolb // Shutterstock

Sunday, December 21

- High of 79 °F, low of 71 °F (70% humidity)
- Partly cloudy with a 100% chance of rain (1 mm of rain)
- Moderate risk of harm from sun exposure (5 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 7:08 AM, sunset at 5:31 PM

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