Texas weather is... unpredictable.

One week it's 85 degrees and sunny. The next week you're getting hail and tornado warnings. Summer brings 100-degree heat waves. Winter can swing from 70 degrees to a hard freeze in 24 hours.

And all of that affects your pool.

Understanding how weather impacts your pool helps you stay ahead of problems, adjust your maintenance routine, and keep your water clean and clear year-round.

Let me walk you through how East Texas weather affects your pool and what to do about it.

How Heat Affects Your Pool

Texas summers are brutal. We're talking weeks of 95-105 degree days with relentless sun.

Here's what that does to your pool:

Water Temperature Rises

Your pool can easily hit 85-90 degrees in peak summer. Some pools get even hotter.

Problems this causes:

• Water feels like a bath (not refreshing)

• Algae grows faster in warm water

• Chlorine burns off quicker in heat and sun

• Equipment works harder

Solutions:

• Run your pump at night when it's cooler

• Add a chiller to cool the water (increasingly popular in Texas)

• Use shade structures or shade sails over part of the pool

• Consider a pool cover at night to slow heat absorption

• Install a fountain or waterfall (moving water cools slightly through evaporation)

Chlorine Depletes Faster

UV rays from the sun break down chlorine. On a hot, sunny day, you can lose 90% of your chlorine in just a few hours without proper stabilization.

Solutions:

• Use cyanuric acid (stabilizer) to protect chlorine from UV (30-50 ppm)

• Test chlorine levels 2-3 times per week in summer

• Consider a salt water system (generates chlorine continuously)

• Add chlorine in the evening so it has time to work before sun exposure

Evaporation Increases

In peak summer, you can lose 1-2 inches of water per week just from evaporation.

Problems this causes:

• Water level drops below skimmer (pump can't function properly)

• Chemical concentrations increase as water evaporates

• Costs money to constantly refill

Solutions:

• Check water level weekly

• Use a pool cover when not in use

• Monitor and adjust chemical levels after adding significant water

• Consider installing an auto-fill device

Algae Blooms

Heat + sun + warm water = algae heaven.

If your chlorine drops even slightly, algae can establish in 24-48 hours.

Prevention:

• Keep chlorine at 2-3 ppm consistently

• Brush walls weekly (removes algae before it's visible)

• Shock the pool monthly

• Run your pump long enough for full water turnover (10-12 hours in summer)

How Rain Affects Your Pool

East Texas gets its share of rain. Sometimes gentle showers. Sometimes torrential downpours that dump 3 inches in an hour.

Here's what rain does to your pool:

Dilutes Chemicals

Rainwater has no chlorine, no pH control, nothing. It just dilutes everything in your pool.

After a heavy rain, your chemistry is off.

What to do:

• Test water chemistry after any significant rain

• Rebalance pH, alkalinity, and chlorine as needed

• Don't assume it's fine. Test it.

Introduces Contaminants

Rain brings dirt, debris, pollen, leaves, and who knows what else into your pool.

What to do:

• Skim the surface after rain

• Vacuum if needed

• Run the filter extra hours

• Shock the pool if water looks cloudy

Lowers Water Temperature

A cold rain can drop your pool temperature 5-10 degrees, especially if it's prolonged.

Not a huge problem, but if you have a heater, you might need to adjust settings.

Can Cause Flooding and Drainage Issues

If your pool deck doesn't drain properly, heavy rain can cause standing water, erosion, or even flooding around your equipment.

Prevention:

• Make sure deck slopes away from the pool

• Install drains in low spots

• Keep gutters and drainage clear

This is why proper engineering and grading matter during construction. I design every pool with drainage in mind so rain doesn't create problems.

How Cold Weather Affects Your Pool

East Texas winters are mild compared to the north, but we still get freezes.

Here's what cold weather does:

Equipment Can Freeze

If temperatures drop below 32 degrees for extended periods, water in your pump, filter, and pipes can freeze and crack.

Prevention:

• Run your pump continuously during freezes (moving water doesn't freeze as easily)

• Drain equipment if you're closing the pool for winter

• Use freeze protection mode on automated systems

• Insulate exposed pipes

I include freeze protection in the automation systems I install. If temperature drops below a set point, the pump automatically turns on to prevent freezing.

Pool Loses Heat Quickly

If you have a heated pool or spa, cold nights mean your heater works overtime.

Solutions:

• Use a pool cover to retain heat

• Lower target temperature slightly during cold snaps

• Heat the spa separately (smaller volume heats faster and cheaper)

Algae Growth Slows (Good News)

Cold water slows algae growth. You can reduce chlorine levels slightly and extend time between cleanings.

But don't neglect it completely. Even in winter, you need to maintain basic chemistry.

How Wind Affects Your Pool

Wind is constant in Texas. Some days more than others.

Blows Debris Into the Pool

Leaves, dirt, grass clippings, pollen... wind deposits it all in your pool.

Solutions:

• Skim daily during windy periods

• Use a pool cover when not in use

• Trim trees and bushes near the pool

• Run your filter extra hours

Increases Evaporation

Wind accelerates evaporation. A hot, windy day can cause significant water loss.

Solution:

• Monitor water level more frequently

• Use a cover to reduce evaporation

Can Affect Water Chemistry

Wind can blow chemicals out of balance (especially if you have a fountain or waterfall creating mist that blows away).

Solution:

• Test chemistry regularly

• Adjust as needed

How Storms Affect Your Pool

Texas gets severe weather. Thunderstorms, hail, high winds, occasional tornadoes.

Here's how to handle it:

Before the Storm

• Remove loose items (furniture, toys, floats)

• Turn off electrical equipment if lightning is close

• Don't add chemicals (they'll just get diluted)

After the Storm

• Skim out debris

• Check for damage (cracks, broken tiles, equipment issues)

• Test and rebalance chemistry

• Shock the pool if needed

• Inspect equipment for water damage or debris

Hail Damage

Hail can crack tiles, damage equipment covers, and dent metal fixtures.

After a hailstorm, inspect everything carefully. Document damage for insurance if needed.

Seasonal Maintenance Adjustments

Spring (March - May)

Weather: Warming up, pollen explosion, occasional storms

Maintenance adjustments:

• Increase pump run time as temperature rises

• Skim daily (pollen season is brutal)

• Test chemistry 2x per week

• Start regular brushing and vacuuming

• Shock monthly

Summer (June - August)

Weather: Hot, sunny, occasional thunderstorms

Maintenance adjustments:

• Run pump 10-12 hours daily

• Test chemistry 3x per week

• Watch for algae closely

• Top off water weekly (evaporation)

• Shock every 2-3 weeks

• Consider running pump at night to save energy

Fall (September - November)

Weather: Cooling down, falling leaves, pleasant

Maintenance adjustments:

• Reduce pump run time to 8-10 hours

• Skim leaves daily (they stain plaster if left)

• Test chemistry weekly

• Continue regular maintenance but less intensively

Winter (December - February)

Weather: Mild with occasional freezes

Maintenance adjustments:

• Run pump 6-8 hours daily (or continuously during freezes)

• Test chemistry every 2 weeks

• Reduce chlorine slightly

• Heat spa for winter use

• Monitor equipment during freezes

Weather-Related Pool Problems and Solutions

Problem: Pool Turned Green After Rain

Cause: Rain diluted chlorine, introduced contaminants, algae bloomed

Solution:

• Test chemistry

• Shock the pool (double or triple dose)

• Brush walls and floor

• Run pump 24 hours

• Add algaecide if needed

• Vacuum dead algae once water clears

Problem: Water Level Keeps Dropping

Cause: Evaporation from heat and wind (or possibly a leak)

Test: Do the bucket test. Fill a bucket with pool water, mark the level inside the bucket and the pool level. After 24 hours, compare. If pool dropped more than bucket, you have a leak.

Solution:

• If evaporation: use a cover, monitor and refill regularly

• If leak: call a professional to locate and repair

Problem: Equipment Froze and Cracked

Cause: Water left in equipment during hard freeze

Prevention (for next time):

• Run pump continuously during freezes

• Drain equipment if closing pool

• Use freeze protection automation

Solution:

• Replace damaged equipment

• Check for other freeze damage

Problem: Cloudy Water After Storm

Cause: Contaminants introduced, chemistry thrown off

Solution:

• Test and rebalance chemistry

• Shock the pool

• Run filter continuously until water clears

• Use clarifier if needed

• Clean filter

Problem: Pool Too Hot to Enjoy

Cause: Relentless Texas summer heat

Solutions:

• Add a chiller (best option)

• Run fountains or waterfalls (slight cooling through evaporation)

• Use shade structures

• Swim at night when water has cooled slightly

Protecting Your Pool Investment

Weather is unpredictable. But your maintenance doesn't have to be.

Best practices:

• Stay consistent with routine maintenance

• Adjust based on current weather conditions

• Test chemistry more frequently during extreme weather

• Address problems immediately (don't wait)

• Invest in automation to handle some of this for you

A well-built pool with quality equipment handles weather changes better than a cheaply built one.

This is why I emphasize engineering and quality materials. Properly sized equipment. Durable finishes. Smart automation with freeze protection.

Your pool should handle whatever Texas weather throws at it without constant intervention.

Weather Monitoring Tools

Helpful apps and tools:

• Weather apps (track temperature, rain, wind)

• Pool thermometer (monitor water temp)

• Automatic water level sensors

• Smart pool monitors (track chemistry in real-time)

Some of my clients use smart pool monitors that send alerts to their phone if chemistry is off or temperature drops too low.

Technology makes weather-related maintenance easier.

The Bottom Line

Texas weather is intense. Hot summers. Cold snaps. Storms. Wind.

But with the right maintenance routine and adjustments based on conditions, your pool will stay clean and clear year-round.

Pay attention to the weather. Adjust your routine accordingly. Address problems quickly.

Do that and your pool will handle anything Texas throws at it.

Ready to Build a Pool That Handles Texas Weather?

If you're building a new pool, let's design one that's built for East Texas conditions.

I'm Doug Johnson, owner of Patriot Pool Co in Longview, Texas. I spent 25 years as a mechanical engineer, and I design every pool to handle our unique climate.

Quality materials that resist heat and freeze damage. Properly sized equipment. Automation with freeze protection. Engineering that accounts for drainage and weather extremes.

Let's build something that lasts through decades of Texas weather.

We serve families throughout East Texas including Longview, Tyler, Marshall, Kilgore, Lindale, Texarkana, and surrounding areas.

Doug Johnson

Owner, Patriot Pool Co

225 Towering Oaks Hvn, Longview TX 75602

Doug Johnson is the owner of Patriot Pool Co, helping homeowners across East Texas with pool construction, remodeling, maintenance, and repair services.

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