UTC Offset
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Slidell, United States Snapshot 2026
Where is Slidell?
Slidell, United States
- Continent
- Americas
- Country
- United States
- City
- Slidell
- Population
- 27.9K
- Elevation
- 1 m
- Coordinates
- 30.28°, -89.78°
Slidell is a city in United States with a population of approximately 27.9K. Average temperatures range from 9°C (47°F) in January to 31°C (88°F) in August. The best time to visit is March, April, May, October, November.
Time in Slidell right now
Open full time & time zone page 12:45 45
Monday, June 15, 2026
IANA time zone
America/Chicago
Daylight saving
DST in effect
CST / CDT
Next DST change
November 1
backward -1h
Live weather in Slidell
Daylight in Slidell today
View full sunrise & sunset page Sunrise
Sunset
Day length
14h 05m
Climate normals for Slidell
Long-term monthly averages based on historical data.
January
Fair 
February
Good March best
Excellent April best
Excellent May best
Good June
Poor July
Wet August
Wet September
Fair October best
Excellent November best
Excellent December
Good | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 16°C / 9°C | 14°C / 6°C | 10days (106 mm) Wet | 7.3h Good | 75% Muggy | 3.9 Moderate | Fair | View Details |
| February | 19°C / 12°C | 18°C / 10°C | 9days (107 mm) Wet | 7.6h Good | 79% Humid | 5 Moderate | Good | View Details |
| March best | 21°C / 15°C | 22°C / 14°C | 10days (108 mm) Wet | 9h Good | 77% Humid | 6.4 High | Excellent | View Details |
| April best | 24°C / 18°C | 25°C / 17°C | 9days (102 mm) Wet | 10.2h Excellent | 76% Humid | 7.5 Very High | Excellent | View Details |
| May best | 28°C / 22°C | 31°C / 24°C | 12days (134 mm) Wet | 10.9h Excellent | 78% Humid | 7.8 Very High | Good | View Details |
| June | 30°C / 25°C | 35°C / 29°C | 16days (158 mm) Wet | 11.1h Excellent | 80% Humid | 8.3 Very High | Poor | View Details |
| July | 31°C / 26°C | 37°C / 31°C | 21days (158 mm) Wet | 10.8h Excellent | 82% Humid | 8.2 Very High | Wet | View Details |
| August | 31°C / 26°C | 37°C / 30°C | 20days (202 mm) Wet | 10.3h Excellent | 81% Humid | 7.9 Very High | Wet | View Details |
| September | 29°C / 24°C | 34°C / 27°C | 14days (116 mm) Wet | 10.2h Excellent | 78% Humid | 6.9 High | Fair | View Details |
| October best | 26°C / 20°C | 28°C / 20°C | 8days (91 mm) Wet | 9.5h Good | 74% Muggy | 5.9 High | Excellent | View Details |
| November best | 21°C / 14°C | 21°C / 13°C | 7days (82 mm) Good | 8h Good | 75% Muggy | 4.4 Moderate | Excellent | View Details |
| December | 17°C / 11°C | 17°C / 9°C | 9days (103 mm) Wet | 6.9h Fair | 79% Humid | 3.8 Moderate | Good | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 16°C / 9°C . Feb: 19°C / 12°C . Mar: 21°C / 15°C . Apr: 24°C / 18°C . May: 28°C / 22°C . Jun: 30°C / 25°C . Jul: 31°C / 26°C . Aug: 31°C / 26°C . Sep: 29°C / 24°C . Oct: 26°C / 20°C . Nov: 21°C / 14°C . Dec: 17°C / 11°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 106 mm. Feb: 107 mm. Mar: 108 mm. Apr: 102 mm. May: 134 mm. Jun: 158 mm. Jul: 158 mm. Aug: 202 mm. Sep: 116 mm. Oct: 91 mm. Nov: 82 mm. Dec: 103 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 75%. Feb: 79%. Mar: 77%. Apr: 76%. May: 78%. Jun: 80%. Jul: 82%. Aug: 81%. Sep: 78%. Oct: 74%. Nov: 75%. Dec: 79%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 21 km/h . Feb: 21 km/h . Mar: 21 km/h . Apr: 21 km/h . May: 19 km/h . Jun: 17 km/h . Jul: 15 km/h . Aug: 15 km/h . Sep: 15 km/h . Oct: 18 km/h . Nov: 18 km/h . Dec: 19 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 4. Feb: UV 5. Mar: UV 6. Apr: UV 8. May: UV 8. Jun: UV 8. Jul: UV 8. Aug: UV 8. Sep: UV 7. Oct: UV 6. Nov: UV 4. Dec: UV 4.
Frequently Asked Questions
Slidell has a population of approximately 27.9K.
The best months to visit Slidell are March, April, May, October, November, when temperatures are pleasant and rainfall is lower.
Slidell receives approximately 1467mm of rainfall annually across 145 rainy days.
Slidell is located in United States, in the Americas region.
Slidell sits at an elevation of 1 m (3 ft) above sea level.