Brunswick weather in September
In September, Brunswick sees average daytime highs of 83°F and overnight lows near 73°F, with 5.0 in of rain across 15.2 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.
Highs ease over the month, from about 85°F in the first days to 81°F by the end. The sky is clear or mostly clear about 32% of the time in September, and the air most often feels oppressive.
Daylight stretches from about 12 h 42 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Brunswick's 9th-clearest and 9th-windiest month. For the whole year in context, see Brunswick's year-round climate.
- Daytime high
- 83°
- 4th warmest
- Overnight low
- 73°
- 9th coldest
- Rainfall
- 5.0 in
- 15.2 wet days
- Daylight
- 12 h 12 min
- 6:15 AM – 6:26 PM
- Cloud cover
- 59%
- 9th clearest
- Wind
- 8 mph
- 9th windiest
- Solar energy
- 4.69 kWh/m²
- Travel score
- 5.0
- out of 10
Brunswick is city in Glynn County, Georgia, United States.
- Density
- 247/km²
- people per km²
- Founded
- 1771
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in September
Highs ease over the month, from about 85°F in the first days to 81°F by the end.
A typical September day in Brunswick reaches about 83°F in the afternoon and slips back to 73°F overnight — a 11°F spread between the day's warmth and the night's chill. On most days the high lands between 79°F and 88°F. Set against its neighbours, September runs about 4°F cooler than August and about 6°F warmer than October.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 84 | 84 | 84 | 84 | 84 | 84 | 84 | 83 | 83 | 83 | 83 | 83 | 83 | 82 | 82 | 82 | 82 | 82 | 81 | 81 | 81 |
| Avg low (°F) | 75 | 75 | 75 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 72 | 72 | 72 | 72 | 71 | 71 | 71 | 71 | 71 | 70 | 70 | 70 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 85 | 75 |
| 2 | 85 | 75 |
| 3 | 85 | 75 |
| 4 | 85 | 74 |
| 5 | 85 | 74 |
| 6 | 85 | 74 |
| 7 | 85 | 74 |
| 8 | 85 | 74 |
| 9 | 85 | 74 |
| 10 | 84 | 74 |
| 11 | 84 | 74 |
| 12 | 84 | 73 |
| 13 | 84 | 73 |
| 14 | 84 | 73 |
| 15 | 84 | 73 |
| 16 | 84 | 73 |
| 17 | 83 | 73 |
| 18 | 83 | 73 |
| 19 | 83 | 72 |
| 20 | 83 | 72 |
| 21 | 83 | 72 |
| 22 | 83 | 72 |
| 23 | 82 | 71 |
| 24 | 82 | 71 |
| 25 | 82 | 71 |
| 26 | 82 | 71 |
| 27 | 82 | 71 |
| 28 | 81 | 70 |
| 29 | 81 | 70 |
| 30 | 81 | 70 |
How September really feels in Brunswick
Once humidity and wind are folded in, September averages 9 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Brunswick weather by month
How September compares with the rest of the year at a glance. September is the 4th-warmest and 3rd-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 61° / 46° | 3.2 | 8 | 10.2 | 5.4 |
| Feb | 64° / 48° | 2.7 | 7.9 | 10.9 | 5.9 |
| Mar | 69° / 53° | 3.0 | 7.7 | 11.8 | 6.9 |
| Apr | 75° / 60° | 2.5 | 7 | 12.7 | 7.5 |
| May | 81° / 68° | 2.4 | 8.3 | 13.6 | 6.6 |
| Jun | 86° / 74° | 5.2 | 17.2 | 14 | 4.3 |
| Jul | 88° / 76° | 4.4 | 18.3 | 13.8 | 3.6 |
| Aug | 87° / 76° | 5.8 | 20.5 | 13.1 | 3.6 |
| Sep | 83° / 73° | 5.0 | 15.2 | 12.2 | 5.0 |
| Oct | 77° / 64° | 3.2 | 8.5 | 11.2 | 7.2 |
| Nov | 69° / 55° | 2.0 | 5.9 | 10.4 | 7.2 |
| Dec | 63° / 49° | 2.9 | 7.7 | 10 | 6.0 |
Cloud cover in September
The sky is clear or mostly clear about 32% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 48%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 48 | 49 | 49 | 50 | 50 | 51 | 51 | 52 | 52 | 52 | 52 | 52 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 52 | 53 | 53 | 53 | 53 | 53 | 54 | 53 | 53 | 53 |
| Cloudier (%) | 52 | 51 | 51 | 50 | 50 | 49 | 49 | 48 | 48 | 48 | 48 | 48 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 48 | 47 | 47 | 47 | 47 | 47 | 46 | 47 | 47 | 47 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 48 | 52 |
| 2 | 49 | 51 |
| 3 | 49 | 51 |
| 4 | 50 | 50 |
| 5 | 50 | 50 |
| 6 | 51 | 49 |
| 7 | 51 | 49 |
| 8 | 52 | 48 |
| 9 | 52 | 48 |
| 10 | 52 | 48 |
| 11 | 52 | 48 |
| 12 | 52 | 48 |
| 13 | 53 | 47 |
| 14 | 53 | 47 |
| 15 | 53 | 47 |
| 16 | 53 | 47 |
| 17 | 53 | 47 |
| 18 | 53 | 47 |
| 19 | 53 | 47 |
| 20 | 53 | 47 |
| 21 | 52 | 48 |
| 22 | 53 | 47 |
| 23 | 53 | 47 |
| 24 | 53 | 47 |
| 25 | 53 | 47 |
| 26 | 53 | 47 |
| 27 | 54 | 46 |
| 28 | 53 | 47 |
| 29 | 53 | 47 |
| 30 | 53 | 47 |
Chance of precipitation in September
Brunswick gets around 5.0 in of rain over 15.2 wet days in September. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 51% and peaks near 61% on the wettest days. The odds ease toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 61 | 60 | 59 | 59 | 58 | 57 | 56 | 55 | 54 | 53 | 52 | 52 | 51 | 50 | 50 | 49 | 49 | 49 | 48 | 48 | 47 | 47 | 46 | 46 | 45 | 44 | 44 | 43 | 43 | 42 |
| Rain chance (%) | |
|---|---|
| 1 | 61 |
| 2 | 60 |
| 3 | 59 |
| 4 | 59 |
| 5 | 58 |
| 6 | 57 |
| 7 | 56 |
| 8 | 55 |
| 9 | 54 |
| 10 | 53 |
| 11 | 52 |
| 12 | 52 |
| 13 | 51 |
| 14 | 50 |
| 15 | 50 |
| 16 | 49 |
| 17 | 49 |
| 18 | 49 |
| 19 | 48 |
| 20 | 48 |
| 21 | 47 |
| 22 | 47 |
| 23 | 46 |
| 24 | 46 |
| 25 | 45 |
| 26 | 44 |
| 27 | 44 |
| 28 | 43 |
| 29 | 43 |
| 30 | 42 |
Humidity in September
Most of September feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the oppressive band about 58% of days. Sticky, muggy-or-worse air turns up on roughly 88% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 2 | 3 | 3 | 4 | 4 | 5 | 5 | 6 |
| Comfortable (%) | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 8 | 8 | 8 | 9 |
| Humid (%) | 2 | 3 | 3 | 3 | 4 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 10 | 10 | 11 | 11 | 12 | 12 | 13 | 13 | 14 |
| Muggy (%) | 13 | 14 | 15 | 16 | 17 | 18 | 18 | 19 | 20 | 21 | 22 | 22 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 |
| Oppressive (%) | 65 | 64 | 65 | 65 | 64 | 63 | 64 | 63 | 63 | 63 | 62 | 62 | 62 | 61 | 60 | 59 | 59 | 59 | 58 | 56 | 57 | 55 | 55 | 53 | 53 | 50 | 49 | 47 | 46 | 44 |
| Miserable (%) | 19 | 18 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 8 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 3 | 3 | 3 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 0 | 1 | 2 | 13 | 65 | 19 |
| 2 | 0 | 1 | 3 | 14 | 64 | 18 |
| 3 | 0 | 1 | 3 | 15 | 65 | 16 |
| 4 | 0 | 1 | 3 | 16 | 65 | 15 |
| 5 | 0 | 1 | 4 | 17 | 64 | 14 |
| 6 | 0 | 2 | 4 | 18 | 63 | 13 |
| 7 | 0 | 2 | 4 | 18 | 64 | 12 |
| 8 | 0 | 2 | 5 | 19 | 63 | 11 |
| 9 | 0 | 2 | 5 | 20 | 63 | 10 |
| 10 | 0 | 2 | 5 | 21 | 63 | 9 |
| 11 | 0 | 2 | 6 | 22 | 62 | 8 |
| 12 | 0 | 2 | 6 | 22 | 62 | 8 |
| 13 | 0 | 2 | 6 | 23 | 62 | 7 |
| 14 | 0 | 2 | 7 | 23 | 61 | 7 |
| 15 | 0 | 3 | 7 | 23 | 60 | 7 |
| 16 | 0 | 3 | 7 | 24 | 59 | 7 |
| 17 | 0 | 3 | 8 | 24 | 59 | 6 |
| 18 | 0 | 3 | 8 | 24 | 59 | 6 |
| 19 | 0 | 4 | 8 | 24 | 58 | 6 |
| 20 | 1 | 4 | 9 | 24 | 56 | 6 |
| 21 | 1 | 4 | 9 | 24 | 57 | 5 |
| 22 | 2 | 5 | 10 | 23 | 55 | 5 |
| 23 | 2 | 5 | 10 | 23 | 55 | 5 |
| 24 | 3 | 6 | 11 | 23 | 53 | 4 |
| 25 | 3 | 6 | 11 | 23 | 53 | 4 |
| 26 | 4 | 7 | 12 | 23 | 50 | 4 |
| 27 | 4 | 8 | 12 | 23 | 49 | 4 |
| 28 | 5 | 8 | 13 | 24 | 47 | 3 |
| 29 | 5 | 8 | 13 | 24 | 46 | 3 |
| 30 | 6 | 9 | 14 | 24 | 44 | 3 |
Wind in September
Winds average 8 mph in September.
Across September, daily wind ranges from about 7 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 7 | light breeze |
| 2 | 8 | light breeze |
| 3 | 8 | light breeze |
| 4 | 8 | light breeze |
| 5 | 8 | light breeze |
| 6 | 8 | light breeze |
| 7 | 8 | light breeze |
| 8 | 8 | light breeze |
| 9 | 8 | light breeze |
| 10 | 8 | light breeze |
| 11 | 8 | light breeze |
| 12 | 8 | light breeze |
| 13 | 8 | light breeze |
| 14 | 8 | light breeze |
| 15 | 8 | light breeze |
| 16 | 8 | light breeze |
| 17 | 8 | light breeze |
| 18 | 8 | light breeze |
| 19 | 8 | light breeze |
| 20 | 8 | light breeze |
| 21 | 8 | light breeze |
| 22 | 8 | light breeze |
| 23 | 8 | light breeze |
| 24 | 8 | light breeze |
| 25 | 8 | light breeze |
| 26 | 8 | light breeze |
| 27 | 8 | light breeze |
| 28 | 8 | light breeze |
| 29 | 8 | light breeze |
| 30 | 8 | light breeze |
Sunrise & sunset in September
Daylight runs from about 12 h 42 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 60 minutes over September. Sunrise moves from 6:06 AM to 6:23 AM, and sunset from 6:46 PM to 6:07 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.7 | 12.6 | 12.6 | 12.6 | 12.5 | 12.5 | 12.5 | 12.4 | 12.4 | 12.4 | 12.3 | 12.3 | 12.3 | 12.3 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.0 | 12.0 | 12.0 | 11.9 | 11.9 | 11.9 | 11.8 | 11.8 | 11.8 | 11.7 |
| Sunrise (AM) | 6:06 | 6:06 | 6:07 | 6:08 | 6:08 | 6:09 | 6:09 | 6:10 | 6:11 | 6:11 | 6:12 | 6:12 | 6:13 | 6:13 | 6:14 | 6:15 | 6:15 | 6:16 | 6:16 | 6:17 | 6:18 | 6:18 | 6:19 | 6:20 | 6:20 | 6:21 | 6:21 | 6:22 | 6:23 | 6:23 |
| Sunset (PM) | 6:46 | 6:44 | 6:43 | 6:42 | 6:41 | 6:39 | 6:38 | 6:37 | 6:35 | 6:34 | 6:33 | 6:31 | 6:30 | 6:29 | 6:27 | 6:26 | 6:25 | 6:23 | 6:22 | 6:21 | 6:19 | 6:18 | 6:16 | 6:15 | 6:14 | 6:12 | 6:11 | 6:10 | 6:09 | 6:07 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.7 | 6:06 | 6:46 |
| 2 | 12.6 | 6:06 | 6:44 |
| 3 | 12.6 | 6:07 | 6:43 |
| 4 | 12.6 | 6:08 | 6:42 |
| 5 | 12.5 | 6:08 | 6:41 |
| 6 | 12.5 | 6:09 | 6:39 |
| 7 | 12.5 | 6:09 | 6:38 |
| 8 | 12.4 | 6:10 | 6:37 |
| 9 | 12.4 | 6:11 | 6:35 |
| 10 | 12.4 | 6:11 | 6:34 |
| 11 | 12.3 | 6:12 | 6:33 |
| 12 | 12.3 | 6:12 | 6:31 |
| 13 | 12.3 | 6:13 | 6:30 |
| 14 | 12.3 | 6:13 | 6:29 |
| 15 | 12.2 | 6:14 | 6:27 |
| 16 | 12.2 | 6:15 | 6:26 |
| 17 | 12.2 | 6:15 | 6:25 |
| 18 | 12.1 | 6:16 | 6:23 |
| 19 | 12.1 | 6:16 | 6:22 |
| 20 | 12.1 | 6:17 | 6:21 |
| 21 | 12.0 | 6:18 | 6:19 |
| 22 | 12.0 | 6:18 | 6:18 |
| 23 | 12.0 | 6:19 | 6:16 |
| 24 | 11.9 | 6:20 | 6:15 |
| 25 | 11.9 | 6:20 | 6:14 |
| 26 | 11.9 | 6:21 | 6:12 |
| 27 | 11.8 | 6:21 | 6:11 |
| 28 | 11.8 | 6:22 | 6:10 |
| 29 | 11.8 | 6:23 | 6:09 |
| 30 | 11.7 | 6:23 | 6:07 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 4.69 kWh/m².
For context, solar energy here swings from a low near 2.69 kWh/m² to a high of 6.47 kWh/m² in May across the year — September's 4.69 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.1 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.9 | 4.8 | 4.8 | 4.8 | 4.8 | 4.7 | 4.7 | 4.7 | 4.7 | 4.6 | 4.6 | 4.6 | 4.5 | 4.5 | 4.5 | 4.5 | 4.4 | 4.4 | 4.4 | 4.4 | 4.3 | 4.3 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.1 | Bright |
| 2 | 5.0 | Bright |
| 3 | 5.0 | Bright |
| 4 | 5.0 | Bright |
| 5 | 5.0 | Bright |
| 6 | 5.0 | Bright |
| 7 | 4.9 | Bright |
| 8 | 4.9 | Bright |
| 9 | 4.9 | Bright |
| 10 | 4.8 | Bright |
| 11 | 4.8 | Bright |
| 12 | 4.8 | Bright |
| 13 | 4.8 | Bright |
| 14 | 4.7 | Bright |
| 15 | 4.7 | Bright |
| 16 | 4.7 | Bright |
| 17 | 4.7 | Bright |
| 18 | 4.6 | Bright |
| 19 | 4.6 | Bright |
| 20 | 4.6 | Bright |
| 21 | 4.5 | Bright |
| 22 | 4.5 | Bright |
| 23 | 4.5 | Bright |
| 24 | 4.5 | Bright |
| 25 | 4.4 | Bright |
| 26 | 4.4 | Bright |
| 27 | 4.4 | Bright |
| 28 | 4.4 | Bright |
| 29 | 4.3 | Bright |
| 30 | 4.3 | Bright |
Hazard calendar for Brunswick
In September, Brunswick sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Brunswick sits in the Atlantic hurricane belt; the season peaks August–October.
Is September a good time to visit Brunswick?
Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
September is a reasonable time to visit Brunswick for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Brunswick in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Brunswick sees daytime highs around 83°F and nights near 73°F. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.
Sea temperature near Brunswick in September
The nearest coast averages about 82°F in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 83°F and coldest in February near 58°F.
It's comfortable for a long swim from Apr 18 to Nov 18 — about 7.1 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 59 | 58 | 62 | 68 | 75 | 81 | 83 | 83 | 82 | 76 | 69 | 62 |
| Comfort | Bracing | Bracing | Cool | Cool | Refreshing | Warm | Tropical | Tropical | Warm | Warm | Refreshing | Cool |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 59 | Bracing |
| Feb | 58 | Bracing |
| Mar | 62 | Cool |
| Apr | 68 | Cool |
| May | 75 | Refreshing |
| Jun | 81 | Warm |
| Jul | 83 | Tropical |
| Aug | 83 | Tropical |
| Sep | 82 | Warm |
| Oct | 76 | Warm |
| Nov | 69 | Refreshing |
| Dec | 62 | Cool |
UV index in Brunswick in September
Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Brunswick peaks around June 23 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 4 | 5 | 7 | 7 | 8 | 10 | 10 | 9 | 8 | 6 | 5 | 3 |
| Level | Moderate | High | Very high | High | Very high | Very high | Very high | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 5 | High |
| Mar | 7 | Very high |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 10 | Very high |
| Jul | 10 | Very high |
| Aug | 9 | Very high |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 5 | Moderate |
| Dec | 3 | Moderate |
Air quality in Brunswick in September
Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.
Air quality in Brunswick is worst in March — around 21 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (November, 8 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 11 | 15 | 21 | 16 | 15 | 17 | 18 | 16 | 12 | 9 | 8 | 9 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 15 | Moderate |
| Mar | 21 | Moderate |
| Apr | 16 | Moderate |
| May | 15 | Moderate |
| Jun | 17 | Moderate |
| Jul | 18 | Moderate |
| Aug | 16 | Moderate |
| Sep | 12 | Good |
| Oct | 9 | Good |
| Nov | 8 | Good |
| Dec | 9 | Good |
Where is Brunswick?
Brunswick sits at 31.2°N, 81.5°W, 10 ft above sea level, in United States. The nearest listed city is Kingsland, 27 mi away.
Topography around Brunswick
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Brunswick.
Within 2 miles, the terrain around Brunswick has only modest variations in elevation — a maximum elevation change of 69 ft around an average of 10 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 151 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 272 ft.
The land around Brunswick is covered by wetland (32%) within 2 miles, trees (34%), wetland (30%) and water (25%) within 10 miles, and trees (57%) and water (29%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Brunswick (31.1501°, -81.4915°, elevation 10 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).