67of 100

Today's score

Mosquitoes in San Fernando, CA

Los Angeles County

Very High risk

Heavy mosquito activity. Expect persistent biting outdoors — use repellent, limit dawn and dusk exposure, and empty standing water.

Updated July 19, 2026

Season
Ramping up
Water/wetland
0%
Top species
Asian tiger mosquito

High mosquito activity

Mosquitoes are highly active in San Fernando right now.

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Right now

Latest reading
65°
Temperature
95%
Humidity
0.0"
Recent rain

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Know the evening before San Fernando spikes.

7-day outlook

Risk recalculates daily from the local forecast.

Today
67
Mon
67
Tue
55
Wed
51
Thu
31
Fri
39
Sat
49

What's active right now

Floodwater and container mosquitoes are active and building toward the summer peak. Aedes vexans (the floodwater biter) surges about a week after heavy rain, and the Asian tiger mosquito is out biting during the day around homes. Early summer is when nuisance biting takes off.

Local mosquito habitat

Mosquitoes breed in standing water, so a town's risk tracks how much of that it holds. San Fernando is 0% wetland and marsh, 0% open water, and 90% developed across its 2.37 sq mi, home to about 23,364 people. That makes it the 109th-wettest of the 141 towns in Los Angeles County. Marshes and floodplains breed the floodwater and cattail mosquitoes; developed areas breed the house mosquito in storm-drain catch basins and backyard containers.

The single biggest thing a homeowner controls is standing water: empty anything that holds it, keep gutters clear, and change bird baths weekly. A licensed mosquito service handles the breeding sites you can't reach and treats the shady resting spots where adults wait out the day.

Mosquito control in San Fernando, CA

Do I need mosquito control in San Fernando?

Mosquito activity in San Fernando is high today (67/100). If your yard has standing water, dense plantings, or shady low spots, this is when a professional barrier treatment and larval control do the most good, especially before evening cookouts.

Professional mosquito control in San Fernando usually pairs a barrier treatment, misted onto shrubs, tall grass, and shady borders where adults rest, with larval control that targets standing water and catch basins so new broods never hatch. Treatments are typically applied every three to four weeks through the season by a licensed company.

How much does mosquito control cost in San Fernando?

Most homeowners pay about $80 to $150 per visit for professional mosquito barrier spraying, or roughly $350 to $600 for a full season of treatments, depending on lot size and how much shade and standing water the property has. Quotes are free, so it costs nothing to get a real number for your yard.

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From a vetted local mosquito control company serving San Fernando. No cost, no obligation.

Are mosquitoes bad in San Fernando right now?

Floodwater and container mosquitoes are active and building toward the summer peak. In San Fernando, today's mosquito risk reads very high (67/100). Heavy mosquito activity. Expect persistent biting outdoors — use repellent, limit dawn and dusk exposure, and empty standing water.

Nearby towns

Mosquito pressure is local. Check the towns around you.