Today’s Tick Risk in Maine – Real-Time Forecast & Activity Map
Check your ZIP code for local tick activity, real-time risk levels, and prevention insights.
Built from CDC and NOAA data
Surveillance Insights
- Annual Lyme Cases
- ~2,000 reported cases annually
- one of highest rates per capita in U.S.
- Based on CDC surveillance data
- Long-Term Trend
- Consistent increase over past 20 years
- Based on CDC surveillance data
- High Risk Zones
- York, Cumberland, Sagadahoc, Knox, Acadia National Park and Mount Desert Island, Greater Portland trails and parks, Kennebec River Valley
Current Situation in Maine
Maine's dense forests, humid coastal climate, and extensive wilderness create ideal tick habitats across much of the state. As the largest New England state, Maine has seen dramatic increases in Lyme disease risk in Maine over the past two decades, with southern and coastal counties experiencing the highest infection rates. The state's long summers and mild winters have allowed tick populations to thrive, making the tick forecast for Maine consistently high during warmer months. The blacklegged tick (deer tick) is the primary vector, responsible for transmitting Lyme disease, anaplasmosis, and babesiosis. With over 17 million acres of forested land and a robust outdoor recreation culture, Mainers and visitors face significant exposure during tick season in Maine.
Snapshot of the current tick situation in Maine, based on regional surveillance data and seasonal activity patterns.
- Risk Level
- High
- Peak Activity
- May - July
- Dominant Vector
- Deer Tick (Ixodes scapularis)
Where Ticks Hide in Maine
The transition zones between Maine's hardwood forests and coastal scrub are prime tick habitats. Ticks thrive in the state's mixed forests of oak, maple, and birch, where leaf litter provides moist, shaded conditions essential for survival. Coastal areas from Kittery to Bar Harbor create particularly favorable microclimates—maritime humidity combines with dense vegetation to support year-round tick activity in Maine. The understory vegetation in second-growth forests provides questing sites where ticks wait for white-footed mice, deer, and humans. Maine's numerous hiking trails, state parks, and lakeside camps create countless human-tick encounter points, especially during peak tick activity in Maine.
Seasonal Activity Pattern
Due to cooler springs, Maine's nymph activity peaks slightly later than southern New England, typically from early June through mid-July. This is the most dangerous period for human infection, as tiny nymphs go unnoticed. Adult ticks are active during two periods: a fall peak in October-November and a smaller spring resurgence in April-May. Unusually for northern states, Maine's coastal microclimates allow limited tick activity even during mild winter periods, though this is uncommon. The state's short spring means the window between winter dormancy and peak nymph season is compressed, creating an intense 6-8 week high-risk period.
Check Your Local Tick Risk
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Local Vector Analysis
Understanding which ticks are active in Maine helps you identify threats and take appropriate precautions.
Deer Tick / Blacklegged Tick
Ixodes scapularis
Appearance: Dark reddish-brown body with black shield on back. Adults are 3-5mm.
Peak Season: Adults: Oct-May | Nymphs: May-Aug
Habitat: Deciduous forests, shady moist areas, and leaf litter. Loves the boundary between lawns and woods.
Diseases: Lyme Disease, Anaplasmosis, Babesiosis, Powassan Virus, B. miyamotoi
American Dog Tick
Dermacentor variabilis
Appearance: Brown with white/grey mottling. Ornate white patterns on shield.
Peak Season: Spring and Summer
Habitat: Grassy fields, walkways, and trails. More tolerant of dry conditions than Deer Ticks.
Diseases: Rocky Mountain Spotted Fever, Tularemia
Lyme Disease
Vector: Deer tick (Ixodes scapularis)
Lyme Disease
Lyme disease is a bacterial infection transmitted by deer ticks. If caught early, it's highly treatable with antibiotics. Left untreated, it can cause serious complications affecting joints, heart, and nervous system.
Early Warning Signs
- Erythema migrans (EM) rash - appears in 70-80% of cases
- Bullseye rash (circular red rash with clear center)
- Rash appears 3-30 days after bite
- Fever and chills
Progression & Symptoms
- Severe headaches and neck stiffness
- Facial palsy (loss of muscle tone on one or both sides of face)
- Arthritis with severe joint pain, especially knees
Prevention Strategies
The best way to avoid tick-borne diseases is to prevent tick bites in the first place. These strategies work together to create multiple layers of protection.
Permethrin-Treated Clothing
Permethrin is an insecticide that kills ticks on contact. When applied to clothing, it remains effective through multiple washes.
Daily Tick Checks
Since disease transmission typically requires 24-48 hours of attachment, finding and removing ticks quickly dramatically reduces infection risk.
Landscaping Defense
Creating a tick-hostile environment in your yard reduces the chance ticks will be waiting when you step outside.
Shower Within 2 Hours
Showering after outdoor activity gives you a chance to wash off ticks before they bite.
Tick Bite Protocol
Acting quickly and correctly is your best defense against infection.Follow these 6 critical steps.
Don't Panic
Most tick bites do not transmit disease, especially if removed quickly.
- Infection rates vary by region (20-50%)
- Transmission usually takes 24-48 hours
- Stay calm and use proper technique
Gather Tools
Use fine-tipped tweezers. Avoid fingers or chemicals.
- Fine-tipped tweezers are best
- Rubbing alcohol for cleaning
- Small container to save the tick
Grasp & Pull
Grasp close to skin and pull upward with steady pressure.
- Grab mouthparts near skin (not body)
- Pull straight up—don't twist
- Maintain steady, even pressure
Clean Area
Disinfect the bite site and your hands thoroughly.
- Wash with soap and water
- Apply rubbing alcohol
- Wash hands well
Save Tick
Keep the tick in a sealed container for potential testing.
- Seal in bag or container
- Label with date and location
- Bring to doctor if symptoms appear
Monitor (30 Days)
Watch for rash or flu-like symptoms for a month.
- Check for expanding rash daily
- Watch for fever or fatigue
- Seek care if you feel unwell
Heading to a lake in Maine?
Live water temperatures and swim conditions for Sebago Lake, Moosehead Lake.
See Maine lake temperaturesWhen does tick season end in Maine?
Tick activity winds down after the first hard freeze, which in Maine typically arrives around Sep 28. See the local first-frost window and city-by-city freeze dates.
Maine first frost datesAlso worried about mosquitoes in Maine?
West Nile virus, EEE, and the local mosquito season vary by state. Check your Maine mosquito risk profile.
View Maine mosquito forecastStay Safe in Maine
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