Carlsbad Weather in September: Temperature, Precipitation, Wind

Temperature
20.9°C
69.7°F
High temperature
24.3°C
75.8°F
Low temperature
18°C
64.4°F
Rainy days
4 days
Rainfall level
0.11mm
0 inch
Cloud coverage
56%
Wind speed
16.9km/h
10.5mph
Daylight time
12:22:00
UV index
6.9
1
partly cloudy day
22.9°C
73.0°F
2
rain
23.3°C
74.0°F
3
partly cloudy day
22.9°C
73.0°F
4
partly cloudy day
20.7°C
69.0°F
5
partly cloudy day
21.0°C
70.0°F
6
partly cloudy day
22.2°C
72.0°F
7
partly cloudy day
21.7°C
71.0°F
8
partly cloudy day
22.8°C
73.0°F
9
clear day
24.1°C
75.0°F
10
clear day
24.0°C
75.0°F
11
clear day
23.3°C
74.0°F
12
partly cloudy day
22.1°C
72.0°F
13
partly cloudy day
21.0°C
70.0°F
14
partly cloudy day
20.4°C
69.0°F
15
cloudy
20.6°C
69.0°F
16
cloudy
20.5°C
69.0°F
17
rain
20.4°C
69.0°F
18
partly cloudy day
21.0°C
70.0°F
19
partly cloudy day
19.3°C
67.0°F
20
partly cloudy day
20.8°C
69.0°F
21
partly cloudy day
19.3°C
67.0°F
22
rain
18.3°C
65.0°F
23
clear day
19.5°C
67.0°F
24
partly cloudy day
19.8°C
68.0°F
25
partly cloudy day
19.8°C
68.0°F
26
partly cloudy day
18.7°C
66.0°F
27
partly cloudy day
18.7°C
66.0°F
28
cloudy
19.3°C
67.0°F
29
cloudy
20.0°C
68.0°F
30
rain
19.1°C
66.0°F

Carlsbad, United States in September experiences a mild and pleasant climate, characterized by warm days and comfortable nights. The average temperature hovers around 20.9°C (69.7°F), with daytime highs reaching 24.3°C (75.8°F) and nighttime lows dipping to 18.0°C (64.4°F). These temperatures create an ideal environment for outdoor activities at popular spots like Tamarack Surf Beach and Legoland California.

September in Carlsbad brings relatively dry conditions, with an average precipitation of only 0.11 mm. Rain occurs on approximately 4 days during the month, with a 13.3% probability of precipitation. The most common form of precipitation is rain, and partly cloudy days dominate the weather pattern.

Humidity levels in Carlsbad during September average 77%, contributing to a comfortable feel despite the warm temperatures. The “feels like” temperature closely matches the actual temperature, with a maximum of 24.5°C (76.1°F) and a minimum of 18.0°C (64.4°F).

Wind patterns in Carlsbad during September feature average wind speeds of 16.9 km/h (10.5 mph), with gusts reaching up to 28.1 km/h (17.5 mph). These breezes provide relief from the warmth and create pleasant conditions for beachgoers at Carlsbad State Beach.

Cloud cover in September averages 56%, allowing for ample sunshine and clear skies. The UV index reaches a moderate level of 6.9, indicating strong sun exposure during midday hours. Visitors and residents should take appropriate sun protection measures when enjoying outdoor attractions like the Flower Fields.

Visibility in Carlsbad during September is excellent, averaging 15.7 km (9.8 miles). This clarity enhances views of the Pacific Ocean from vantage points like Carlsbad Sea Wall.

September days in Carlsbad begin with sunrise at approximately 6:33 AM and end with sunset around 6:55 PM, providing ample daylight hours for exploring the city’s attractions, such as the Leo Carrillo Ranch Historic Park.

What is the temperature in Carlsbad in September?

Average air temperature in Carlsbad is 20.9°C (69.7°F) in September. The outside temperature in Carlsbad feels like 20.9°C (69.7°F) on a typical September day. The highest average temperature during sunny days is 24.3°C (75.8°F) and feels like 24.5°C (76.1°F). The lowest average temperature after dark is 18°C (64.4°F) which feels like 18°C (64.4°F).

How hot is Carlsbad in September?

The hot temperature in September in Carlsbad rises to 28.8°C (83.8°F) on sunny days with low cloud coverage and 77% humidity. During hottest days of September it feels like 29.9 °C (85.8°F). The average maximum temp in Carlsbad is 24.3°C (85.8°F) during day time in September.

How cold is Carlsbad in September?

The coldest temp in Carlsbad in September drops to 14.2°C (57.6°F) during the cold nights. With 16.9km/h (10.5mph) winds and 77% humidity it feels like 14.2°C (57.6°F) on the coldest nights. The average minimum temperature is 18°C (64.4°F) during night time in September.

Does it rain in Carlsbad in September?

Yes, it rains for 4 days in Carlsbad, United States in September averaging 0.11 mm of precipitation. Carlsbad has a 13.3% chance for rain throughout the entire month of September.

How much does it rain in Carlsbad throughout September?

Carlsbad has 0.11 mm (0 inch) of rain per day on average in September. It rains for an average of 4 days out of the entire month.

Is Carlsbad windy in September?

The average speed of wind in Carlsbad, United States during September is 16.9km/h (10.5mph) and average windgust is 28.1km/h (17.4mph). On some days in September wind can reach up to 22.9km/h (14.2mph).

What is the direction of the wind in Carlsbad in September?

Most days of September the wind is blowing from West-Southwest direction in Carlsbad.

What are the humidity levels in Carlsbad in September?

The average humidity levels in Carlsbad in September are 77%. Daily humidity levels in Carlsbad range from 67.1% to 84.9% during September.

How many hours of daylight are in Carlsbad in September?

Carlsbad has 12 hours 22 minutes of daylight in September on average. Sunset and sunrise times gradually change throughout the month. Sunrise in Carlsbad in September is at 6:33:08 and the sunset is at 18:55:09.

What is the cloud coverage in Carlsbad in September?

Clouds cover 56% of the sky on average throughout September in Carlsbad. The cloud coverage ranges from 0% to 100% depending on the day of the month.

What is the UV level in September in Carlsbad?

The average UV index in Carlsbad is 6.9 in September. UV levels change throughout the month and range from 2 to 10.

What is the solar radiation in Carlsbad in September?

The average solar radiation is 176.3 W/m2 (Watts per square meter) in Carlsbad during September. However solar radiation levels change throughout the month and range from 49.5 W/m2 to 268 W/m2.

What is the solar energy during September in Carlsbad?

The average solar energy during September in Carlsbad is 15.2 MJ/m2 (megajoules per square metre). Solar energy ranges from 4 MJ/m2, to 23.1 MJ/m2 during September.

Are there severe weather risks in Carlsbad in September?

Yes, there is a 10% risk for severe weather in Carlsbad, United States in September.

What is the air pressure in Carlsbad in September?

On average the air pressure in Carlsbad in September is 1013.5 mb (millibars). Throughout the month the sea level pressure ranges from 1010.7 mb to 1016.4 mb.

What is the visibility in Carlsbad in September?

The average daylight visibility in Carlsbad in September is 15.7 km (9.8 miles). Depending on the precipitation the visibility ranges from 14.8 km (9.2 miles) to 16 km (9.9 miles) throughout September.

What is the dew point in Carlsbad in September?

The average dew point in Carlsbad during September is 16.6°C (61.8°F).

Where is the data for Carlsbad climate in September coming from?

The climate data for Carlsbad, California, United States in September is collected from the following weather stations.

  • CAMP PENDLETON MCAS, CA US
  • CARLSBAD MCCLELLAN PALOMAR AIRPORT, CA US
  • OCEANSIDE MUNICIPAL AIRPORT, CA US
  • FW6626 Carlsbad CA US
  • KCRQ
  • KNFG
  • KOKB
  • WIRE MOUNTAIN CA US