Sea Island Weather Forecast

Today 18 Oct
- 58
- 70
Breezy
Mon 19 Oct
- 56
- 71
Mostly Sunny
Tue 20 Oct
- 61
- 74
Sunny
Wed 21 Oct
- 58
- 75
Sunny
Thu 22 Oct
- 59
- 75
Sunny
Fri 23 Oct
- 61
- 74
Sunny

Today 18 Oct
1. 12 am
2. 1 am
3. 2 am
4. 3 am
5. 4 am
6. 5 am
7. 6 am
8. 7 am
9. 8 am
10. 9 am
11. 10 am
12. 11 am
13. 12 pm
14. 1 pm
15. 2 pm
16. 3 pm
17. 4 pm
18. 5 pm
19. 6 pm
20. 7 pm
21. 8 pm
22. 9 pm
23. 10 pm
24. 11 pm
Mon 19 Oct
1. 12 am
2. 1 am
3. 2 am
4. 3 am
5. 4 am
6. 5 am
7. 6 am
8. 7 am
9. 8 am
10. 9 am
11. 10 am
12. 11 am
13. 12 pm
14. 1 pm
15. 2 pm
16. 3 pm
17. 4 pm
18. 5 pm
19. 8 pm
20. 11 pm
Tue 20 Oct
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
Wed 21 Oct
1. 2 am
2. 8 am
3. 2 pm
4. 8 pm
Thu 22 Oct
1. 2 am
2. 8 am
3. 2 pm
4. 8 pm
Fri 23 Oct
1. 2 am
2. 8 am
3. 2 pm
4. 8 pm
Sat 24 Oct
1. 2 am
2. 8 am
3. 2 pm
4. 8 pm

Today 18 Oct Coastal Glynn

Sunny, breezy with Highs in the upper 60s. North Winds 15 to 25 Mph. Gusts up to 40 Mph this morning.

Tonight 18 Oct Coastal Glynn

Partly cloudy. Lows in the mid 50s. North Winds 15 to 20 Mph with Gusts up to 35 Mph.

Sea Island Temperature Statistics

October Temperature

Brunswick, Malcolm McKinnon Airport (3.1 miles)

Lowest 1 February, 2026
23 °F
Average 2026
72.2 °F
Highest 11 July, 2026
98.6 °F
Lowest 26 September, 2026
59 °F
Average September
80.2 °F
Highest 5 September, 2026
93.2 °F
Lowest 12 October, 2026
66.2 °F
Average October
77.3 °F
Highest 2 October, 2026
87.8 °F

Climate (2021–2026)

Brunswick, Malcolm McKinnon Airport (3.1 miles)

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Average Low 2021–2026
63.1 °F
Average 2021–2026
70.4 °F
Average High 2021–2026
78.2 °F

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Sea Island Weather Forecast

Today 18 Oct Coastal Glynn

Tonight 18 Oct Coastal Glynn

Mon 19 Oct Coastal Glynn

Mon 19 Oct Coastal Glynn

Tue 20 Oct Coastal Glynn

Tue 20 Oct Coastal Glynn

Wed 21 Oct Coastal Glynn

Wed 21 Oct Coastal Glynn

Thu 22 Oct Coastal Glynn

Thu 22 Oct Coastal Glynn

Fri 23 Oct Coastal Glynn

Fri 23 Oct Coastal Glynn

Sat 24 Oct Coastal Glynn

Temperature Forecast NOAA

Temperature Real-Time

Jacksonville Radar

National Satellite

National Synoptic

Sea Island Temperature Statistics

October Temperature

Brunswick, Malcolm McKinnon Airport (3.1 miles)

Lowest 1 February, 2026

Average 2026

Highest 11 July, 2026

Lowest 26 September, 2026

Average September

Highest 5 September, 2026

Lowest 12 October, 2026

Average October

Highest 2 October, 2026

Climate (2021–2026)

Brunswick, Malcolm McKinnon Airport (3.1 miles)

Average Low 2021–2026

Average 2021–2026

Average High 2021–2026