Chalmette weather in January
In January, Chalmette sees average daytime highs of 61°F and overnight lows near 48°F, with 4.4 in of rain across 9.7 wet days and about 10.3 hours of daylight. It is the 12th-warmest and 6th-wettest month of the year here.
Day-to-day highs hold fairly steady near 61°F through the month. The sky is clear or mostly clear about 36% of the time in January, and the air most often feels dry.
Daylight stretches from about 10 h 06 min at the start of January to 10 h 36 min by month's end. Set against the rest of the year, January is Chalmette's 8th-clearest and 1st-windiest month. For the whole year in context, see Chalmette's year-round climate.
- Daytime high
- 61°
- 12th warmest
- Overnight low
- 48°
- 1st coldest
- Rainfall
- 4.4 in
- 9.7 wet days
- Daylight
- 10 h 18 min
- 7:01 AM – 5:17 PM
- Cloud cover
- 56%
- 8th clearest
- Wind
- 10 mph
- 1st windiest
- Solar energy
- 2.98 kWh/m²
- Travel score
- 5.1
- out of 10
Chalmette is unincorporated suburban community and census-designated place in St. Bernard Parish, Louisiana, United States.
- Density
- 813/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in January
Day-to-day highs hold fairly steady near 61°F through the month.
A typical January day in Chalmette reaches about 61°F in the afternoon and slips back to 48°F overnight — a 12°F spread between the day's warmth and the night's chill. On most days the high lands between 49°F and 71°F. Set against its neighbours, January runs about 2°F cooler than December and about 3°F cooler than February.
| 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 61 | 61 | 61 | 61 | 61 | 61 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 62 |
| Avg low (°F) | 49 | 49 | 49 | 49 | 49 | 49 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 49 | 49 | 49 | 49 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 61 | 49 |
| 2 | 61 | 49 |
| 3 | 61 | 49 |
| 4 | 61 | 49 |
| 5 | 61 | 49 |
| 6 | 61 | 49 |
| 7 | 60 | 48 |
| 8 | 60 | 48 |
| 9 | 60 | 48 |
| 10 | 60 | 48 |
| 11 | 60 | 48 |
| 12 | 60 | 48 |
| 13 | 60 | 48 |
| 14 | 60 | 48 |
| 15 | 61 | 48 |
| 16 | 61 | 48 |
| 17 | 61 | 48 |
| 18 | 61 | 48 |
| 19 | 61 | 48 |
| 20 | 61 | 48 |
| 21 | 61 | 48 |
| 22 | 61 | 48 |
| 23 | 61 | 48 |
| 24 | 61 | 48 |
| 25 | 61 | 48 |
| 26 | 61 | 48 |
| 27 | 61 | 48 |
| 28 | 61 | 49 |
| 29 | 61 | 49 |
| 30 | 61 | 49 |
| 31 | 62 | 49 |
How January really feels in Chalmette
Once humidity and wind are folded in, January averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Chalmette weather by month
How January compares with the rest of the year at a glance. January is the 12th-warmest and 6th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 61° / 48° | 4.4 | 9.7 | 10.3 | 5.1 |
| Feb | 64° / 51° | 4.2 | 8.8 | 10.9 | 5.8 |
| Mar | 69° / 57° | 4.5 | 9.4 | 11.8 | 6.6 |
| Apr | 75° / 63° | 3.9 | 8.4 | 12.7 | 7.2 |
| May | 82° / 70° | 3.6 | 9.2 | 13.5 | 6.5 |
| Jun | 86° / 76° | 5.2 | 15.2 | 13.9 | 4.4 |
| Jul | 88° / 78° | 5.6 | 17.9 | 13.7 | 3.7 |
| Aug | 87° / 78° | 6.3 | 17.4 | 13.1 | 3.8 |
| Sep | 84° / 74° | 4.9 | 12.8 | 12.2 | 5.2 |
| Oct | 77° / 65° | 3.5 | 8 | 11.3 | 7.4 |
| Nov | 69° / 56° | 3.3 | 7.3 | 10.5 | 7.0 |
| Dec | 63° / 51° | 3.8 | 9.2 | 10.1 | 5.7 |
Cloud cover in January
The sky is clear or mostly clear about 36% of the time in January.
Beyond those clear spells, partly cloudy skies cover about 12% of January, with mostly cloudy or overcast conditions the remaining 52%.
| 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 44 | 44 | 45 | 45 | 46 | 46 | 45 | 47 | 47 | 48 | 48 | 48 | 48 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 49 | 49 | 49 | 48 | 48 | 47 | 47 | 46 | 46 | 46 |
| Cloudier (%) | 56 | 56 | 55 | 55 | 54 | 54 | 55 | 53 | 53 | 52 | 52 | 52 | 52 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 51 | 51 | 51 | 52 | 52 | 53 | 53 | 54 | 54 | 54 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 44 | 56 |
| 2 | 44 | 56 |
| 3 | 45 | 55 |
| 4 | 45 | 55 |
| 5 | 46 | 54 |
| 6 | 46 | 54 |
| 7 | 45 | 55 |
| 8 | 47 | 53 |
| 9 | 47 | 53 |
| 10 | 48 | 52 |
| 11 | 48 | 52 |
| 12 | 48 | 52 |
| 13 | 48 | 52 |
| 14 | 50 | 50 |
| 15 | 50 | 50 |
| 16 | 50 | 50 |
| 17 | 50 | 50 |
| 18 | 50 | 50 |
| 19 | 50 | 50 |
| 20 | 50 | 50 |
| 21 | 50 | 50 |
| 22 | 49 | 51 |
| 23 | 49 | 51 |
| 24 | 49 | 51 |
| 25 | 48 | 52 |
| 26 | 48 | 52 |
| 27 | 47 | 53 |
| 28 | 47 | 53 |
| 29 | 46 | 54 |
| 30 | 46 | 54 |
| 31 | 46 | 54 |
Chance of precipitation in January
Chalmette gets around 4.4 in of rain over 9.7 wet days in January. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 32% and peaks near 32% on the wettest days.
| 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 |
| Rain chance (%) | |
|---|---|
| 1 | 31 |
| 2 | 31 |
| 3 | 31 |
| 4 | 31 |
| 5 | 31 |
| 6 | 31 |
| 7 | 31 |
| 8 | 31 |
| 9 | 31 |
| 10 | 32 |
| 11 | 32 |
| 12 | 32 |
| 13 | 32 |
| 14 | 32 |
| 15 | 32 |
| 16 | 32 |
| 17 | 32 |
| 18 | 32 |
| 19 | 32 |
| 20 | 32 |
| 21 | 32 |
| 22 | 32 |
| 23 | 32 |
| 24 | 32 |
| 25 | 32 |
| 26 | 32 |
| 27 | 32 |
| 28 | 32 |
| 29 | 32 |
| 30 | 32 |
| 31 | 32 |
Humidity in January
Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, January lands in the dry band about 72% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 68 | 69 | 69 | 68 | 67 | 67 | 69 | 69 | 69 | 70 | 70 | 71 | 71 | 71 | 72 | 73 | 74 | 74 | 74 | 75 | 75 | 75 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 |
| Comfortable (%) | 13 | 13 | 13 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Humid (%) | 13 | 13 | 13 | 13 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Muggy (%) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Oppressive (%) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 68 | 13 | 13 | 5 | 1 |
| 2 | 69 | 13 | 13 | 5 | 0 |
| 3 | 69 | 13 | 13 | 5 | 0 |
| 4 | 68 | 14 | 13 | 5 | 0 |
| 5 | 67 | 14 | 14 | 5 | 0 |
| 6 | 67 | 14 | 14 | 5 | 0 |
| 7 | 69 | 13 | 13 | 5 | 0 |
| 8 | 69 | 13 | 13 | 5 | 0 |
| 9 | 69 | 13 | 13 | 5 | 0 |
| 10 | 70 | 13 | 12 | 5 | 0 |
| 11 | 70 | 13 | 12 | 5 | 0 |
| 12 | 71 | 13 | 11 | 5 | 0 |
| 13 | 71 | 14 | 11 | 4 | 0 |
| 14 | 71 | 14 | 11 | 4 | 0 |
| 15 | 72 | 13 | 10 | 5 | 0 |
| 16 | 73 | 13 | 10 | 4 | 0 |
| 17 | 74 | 13 | 9 | 4 | 0 |
| 18 | 74 | 13 | 9 | 4 | 0 |
| 19 | 74 | 13 | 9 | 4 | 0 |
| 20 | 75 | 13 | 8 | 4 | 0 |
| 21 | 75 | 13 | 8 | 4 | 0 |
| 22 | 75 | 13 | 8 | 4 | 0 |
| 23 | 76 | 12 | 8 | 4 | 0 |
| 24 | 76 | 12 | 8 | 4 | 0 |
| 25 | 76 | 12 | 8 | 4 | 0 |
| 26 | 76 | 12 | 8 | 4 | 0 |
| 27 | 76 | 12 | 8 | 4 | 0 |
| 28 | 76 | 12 | 8 | 4 | 0 |
| 29 | 76 | 12 | 8 | 4 | 0 |
| 30 | 76 | 12 | 8 | 4 | 0 |
| 31 | 76 | 12 | 8 | 4 | 0 |
Wind in January
Winds average 10 mph in January, the windiest month of the year.
Across January, daily wind ranges from about 10 mph on the calmest days to 10 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| 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 | light breeze |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 10 | light breeze |
| 2 | 10 | light breeze |
| 3 | 10 | light breeze |
| 4 | 10 | light breeze |
| 5 | 10 | light breeze |
| 6 | 10 | light breeze |
| 7 | 10 | light breeze |
| 8 | 10 | light breeze |
| 9 | 10 | light breeze |
| 10 | 10 | light breeze |
| 11 | 10 | light breeze |
| 12 | 10 | light breeze |
| 13 | 10 | light breeze |
| 14 | 10 | light breeze |
| 15 | 10 | light breeze |
| 16 | 10 | light breeze |
| 17 | 10 | light breeze |
| 18 | 10 | light breeze |
| 19 | 10 | light breeze |
| 20 | 10 | light breeze |
| 21 | 10 | light breeze |
| 22 | 10 | light breeze |
| 23 | 10 | light breeze |
| 24 | 10 | light breeze |
| 25 | 10 | light breeze |
| 26 | 10 | light breeze |
| 27 | 10 | light breeze |
| 28 | 10 | light breeze |
| 29 | 10 | light breeze |
| 30 | 10 | light breeze |
| 31 | 10 | light breeze |
Sunrise & sunset in January
Daylight runs from about 10 h 06 min at the start of January to 10 h 36 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 30 minutes over January. Sunrise moves from 7:00 AM to 6:57 AM, and sunset from 5:06 PM to 5:30 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 10.1 | 10.1 | 10.1 | 10.1 | 10.1 | 10.1 | 10.2 | 10.2 | 10.2 | 10.2 | 10.2 | 10.2 | 10.2 | 10.2 | 10.3 | 10.3 | 10.3 | 10.3 | 10.3 | 10.3 | 10.4 | 10.4 | 10.4 | 10.4 | 10.4 | 10.4 | 10.5 | 10.5 | 10.5 | 10.5 | 10.6 |
| Sunrise (AM) | 7:00 | 7:00 | 7:00 | 7:01 | 7:01 | 7:01 | 7:01 | 7:01 | 7:01 | 7:01 | 7:01 | 7:01 | 7:01 | 7:01 | 7:01 | 7:01 | 7:01 | 7:01 | 7:01 | 7:00 | 7:00 | 7:00 | 7:00 | 6:59 | 6:59 | 6:59 | 6:58 | 6:58 | 6:58 | 6:57 | 6:57 |
| Sunset (PM) | 5:06 | 5:07 | 5:07 | 5:08 | 5:09 | 5:10 | 5:10 | 5:11 | 5:12 | 5:13 | 5:13 | 5:14 | 5:15 | 5:16 | 5:16 | 5:17 | 5:18 | 5:19 | 5:20 | 5:21 | 5:21 | 5:22 | 5:23 | 5:24 | 5:25 | 5:26 | 5:26 | 5:27 | 5:28 | 5:29 | 5:30 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.1 | 7:00 | 5:06 |
| 2 | 10.1 | 7:00 | 5:07 |
| 3 | 10.1 | 7:00 | 5:07 |
| 4 | 10.1 | 7:01 | 5:08 |
| 5 | 10.1 | 7:01 | 5:09 |
| 6 | 10.1 | 7:01 | 5:10 |
| 7 | 10.2 | 7:01 | 5:10 |
| 8 | 10.2 | 7:01 | 5:11 |
| 9 | 10.2 | 7:01 | 5:12 |
| 10 | 10.2 | 7:01 | 5:13 |
| 11 | 10.2 | 7:01 | 5:13 |
| 12 | 10.2 | 7:01 | 5:14 |
| 13 | 10.2 | 7:01 | 5:15 |
| 14 | 10.2 | 7:01 | 5:16 |
| 15 | 10.3 | 7:01 | 5:16 |
| 16 | 10.3 | 7:01 | 5:17 |
| 17 | 10.3 | 7:01 | 5:18 |
| 18 | 10.3 | 7:01 | 5:19 |
| 19 | 10.3 | 7:01 | 5:20 |
| 20 | 10.3 | 7:00 | 5:21 |
| 21 | 10.4 | 7:00 | 5:21 |
| 22 | 10.4 | 7:00 | 5:22 |
| 23 | 10.4 | 7:00 | 5:23 |
| 24 | 10.4 | 6:59 | 5:24 |
| 25 | 10.4 | 6:59 | 5:25 |
| 26 | 10.4 | 6:59 | 5:26 |
| 27 | 10.5 | 6:58 | 5:26 |
| 28 | 10.5 | 6:58 | 5:27 |
| 29 | 10.5 | 6:58 | 5:28 |
| 30 | 10.5 | 6:57 | 5:29 |
| 31 | 10.6 | 6:57 | 5:30 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 2.98 kWh/m².
For context, solar energy here swings from a low near 2.73 kWh/m² to a high of 6.23 kWh/m² in May across the year — January's 2.98 kWh/m² sits near the bottom.
| 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 2.7 | 2.7 | 2.7 | 2.7 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.9 | 2.9 | 2.9 | 2.9 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.1 | 3.1 | 3.1 | 3.1 | 3.1 | 3.1 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.3 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 2.7 | Moderate |
| 2 | 2.7 | Moderate |
| 3 | 2.7 | Moderate |
| 4 | 2.7 | Moderate |
| 5 | 2.8 | Moderate |
| 6 | 2.8 | Moderate |
| 7 | 2.8 | Moderate |
| 8 | 2.8 | Moderate |
| 9 | 2.8 | Moderate |
| 10 | 2.9 | Moderate |
| 11 | 2.9 | Moderate |
| 12 | 2.9 | Moderate |
| 13 | 2.9 | Moderate |
| 14 | 3.0 | Moderate |
| 15 | 3.0 | Moderate |
| 16 | 3.0 | Moderate |
| 17 | 3.0 | Moderate |
| 18 | 3.0 | Moderate |
| 19 | 3.1 | Moderate |
| 20 | 3.1 | Moderate |
| 21 | 3.1 | Moderate |
| 22 | 3.1 | Moderate |
| 23 | 3.1 | Moderate |
| 24 | 3.1 | Moderate |
| 25 | 3.2 | Moderate |
| 26 | 3.2 | Moderate |
| 27 | 3.2 | Moderate |
| 28 | 3.2 | Moderate |
| 29 | 3.2 | Moderate |
| 30 | 3.2 | Moderate |
| 31 | 3.3 | Moderate |
Hazard calendar for Chalmette
None of Chalmette's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Chalmette sits in the Atlantic hurricane belt; the season peaks August–October.
Is January a good time to visit Chalmette?
Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
January is a reasonable time to visit Chalmette for sightseeing.
What to pack for Chalmette in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, Chalmette sees daytime highs around 61°F and nights near 48°F. Worth packing: a warm layer and rain gear. About 10 days see rain.
Sea temperature near Chalmette in January
The nearest coast averages about 57°F in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 14 mi away) is warmest in August at about 86°F and coldest in January near 57°F.
It's comfortable for a long swim from Apr 5 to Nov 10 — about 7.2 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 57 | 58 | 64 | 71 | 78 | 84 | 86 | 86 | 83 | 75 | 67 | 60 |
| Comfort | Bracing | Bracing | Cool | Refreshing | Warm | Tropical | Tropical | Tropical | Tropical | Warm | Cool | Cool |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 57 | Bracing |
| Feb | 58 | Bracing |
| Mar | 64 | Cool |
| Apr | 71 | Refreshing |
| May | 78 | Warm |
| Jun | 84 | Tropical |
| Jul | 86 | Tropical |
| Aug | 86 | Tropical |
| Sep | 83 | Tropical |
| Oct | 75 | Warm |
| Nov | 67 | Cool |
| Dec | 60 | Cool |
UV index in Chalmette in January
Clear-sky midday UV in January peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Chalmette peaks around July 11 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 4 (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 | 6 | 7 | 10 | 10 | 10 | 10 | 9 | 8 | 6 | 5 | 4 |
| Level | Moderate | High | High | Very high | Very high | Extreme | Extreme | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 6 | High |
| Mar | 7 | High |
| Apr | 10 | Very high |
| May | 10 | Very high |
| Jun | 10 | Extreme |
| Jul | 10 | Extreme |
| Aug | 9 | Very high |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 5 | Moderate |
| Dec | 4 | Moderate |
Air quality in Chalmette in January
Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.
Air quality in Chalmette is worst in July — around 22 µg/m³ PM2.5 (moderate), about 2.9× 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) | 8 | 9 | 10 | 10 | 13 | 18 | 22 | 17 | 11 | 8 | 8 | 8 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 9 | Good |
| Mar | 10 | Good |
| Apr | 10 | Good |
| May | 13 | Moderate |
| Jun | 18 | Moderate |
| Jul | 22 | Moderate |
| Aug | 17 | Moderate |
| Sep | 11 | Good |
| Oct | 8 | Good |
| Nov | 8 | Good |
| Dec | 8 | Good |
Where is Chalmette?
Chalmette sits at 29.9°N, 90.0°W, 3 ft above sea level, in United States. The nearest listed city is Terrytown, 4.3 mi away.
Topography around Chalmette
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Chalmette.
Within 2 miles, the terrain around Chalmette has only modest variations in elevation — a maximum elevation change of 39 ft around an average of 3 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 243 ft.
The land around Chalmette is covered by artificial surfaces (32%), grassland (27%) and water (20%) within 2 miles, artificial surfaces (23%), water (23%) and trees (22%) within 10 miles, and water (44%) and trees (28%) 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 Chalmette (29.943°, -89.9654°, elevation 3 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).