Best Time to Water Your Lawn in Jacksonville, FL
Published: February 1, 2026 · Updated: April 23, 2026
⚠ Watering hours above are for normal conditions.
Jacksonville is currently under Modified Phase II Severe Water Shortage – SJRWMD Order 2026-006. Allowed hours are Before 10:00 AM or After 4:00 PM only. Violating hours or day limits may result in fines of $100 first violation; escalating per local ordinance.
📋 Reference Only — Normal conditions (not currently in effect)
Normal Watering Window for Jacksonville, FL
In zone 8b's intense heat, early morning watering prevents thermal shock that can occur when cold irrigation water hits sun-scorched turf midday. The pre-dawn hours also offer the highest relative humidity, further reducing evaporation and ensuring more water reaches the root zone.
Time to Avoid
11:00 AM - 4:00 PM
Peak-heat irrigation is extremely wasteful in hot climates, with much of the water evaporating before it even contacts the soil surface.
Normal Seasonal Schedule for Jacksonville, FL (Reference)
springNow
- Frequency: 2-3 times per week
- Duration: 25-35 minutes per zone
- Depth: 1-1.5 inches total per week
- Notes: Warm-season grasses emerge from dormancy in spring. Begin irrigation as soon as you see green-up, usually when soil temperatures reach 65 degrees.
summer
- Frequency: 3-5 times per week
- Duration: 30-45 minutes per zone
- Depth: 1.5-2 inches total per week
- Notes: Peak growing season demands the most water. Split watering into two shorter sessions if you notice runoff before the full duration is complete.
fall
- Frequency: 2-3 times per week
- Duration: 20-30 minutes per zone
- Depth: 1 inch total per week
- Notes: Gradually reduce watering as bermuda and zoysia slow their growth. Overwatering in fall can promote fungal diseases as temperatures cool.
winter
- Frequency: Once every 2-3 weeks
- Duration: 15-20 minutes per zone
- Depth: 0.5 inches as needed
- Notes: Dormant warm-season lawns need very little water. Irrigate only during extended dry periods to keep roots and crowns alive.
Watering by Grass Type
Bermuda Grass
Bermuda grass is drought-tolerant but performs best with deep, infrequent watering of about 1 inch per week during active growth.
Zoysia Grass
Zoysia is moderately drought-tolerant; water deeply once or twice per week, providing about 1 inch total.
Tall Fescue
Tall Fescue has moderate drought tolerance due to its deep roots; water 1 to 1.5 inches per week, especially during summer heat.
Centipede Grass
Centipede grass prefers minimal watering -- about 1 inch per week. Overwatering encourages shallow roots and disease.
Drought Stress Warning Signs
Bermuda grass turns from bright green to a dusty blue-green, then straw-yellow as drought stress intensifies over several days.
Leaf blades become noticeably thinner and the canopy looks sparse as bermuda slows lateral stolon growth to conserve energy.
Internodes shorten dramatically and the grass stops sending out new runners, prioritizing root survival over canopy expansion.
Footprints persist for over an hour because drought-stressed bermuda loses the water pressure that normally keeps leaf tissue rigid.
Brown patches emerge along sidewalk edges and driveway borders first, where radiant heat from concrete accelerates soil drying.
Monthly Watering Calendar
| Month | Recommendation |
|---|---|
| January | Minimal watering. Water only if no rain for 2+ weeks and temps are above 60F. |
| February | Minimal watering. Water only if no rain for 2+ weeks and temps are above 60F. |
| March | Begin regular watering as grass breaks dormancy. Water 0.5-0.75 inches per week. |
| April | Increase to 1 inch per week as temperatures rise and growth accelerates. |
| May | Water 1-1.25 inches per week. Switch to early morning watering to reduce evaporation. |
| June | Peak watering season. Apply 1.25-1.5 inches per week, split into 2-3 sessions. |
| July | Peak watering season. Apply 1.25-1.5 inches per week, split into 2-3 sessions. |
| August | Peak watering season. Apply 1.25-1.5 inches per week, split into 2-3 sessions. |
| September | Reduce to 1 inch per week as temperatures begin to cool. |
| October | Taper watering to 0.75 inches per week. Warm-season grasses slow growth. |
| November | Reduce to 0.5 inches per week or water only as needed before dormancy. |
| December | Dormant season. Water only during extended dry spells to prevent root desiccation. |
Frequently Asked Questions
What time can I water my lawn in Jacksonville, FL?▾
Jacksonville is under Modified Phase II Severe Water Shortage – SJRWMD Order 2026-006. Watering is only permitted during: Before 10:00 AM or After 4:00 PM. Modified Phase II rules under SJRWMD Order 2026-006: lawn and landscape irrigation is limited to 1 day per week. Odd-numbered addresses water Saturday only; even-numbered addresses water Sunday only. Sprinkler irrigation is prohibited every day between 10:00 AM and 4:00 PM. Maximum 3/4 inch per zone and 1 hour per zone on your assigned day. Hand watering with a shut-off nozzle, drip irrigation, soaker hoses, and microirrigation are permitted any day, any hour. Reclaimed water customers follow the same 1-day-per-week schedule unless their utility ordinance grants an explicit exemption. Outside these hours on your assigned day is a violation that may result in fines of $100 first violation; escalating per local ordinance.
How often can I water my lawn in Jacksonville, FL?▾
Under current restrictions, Jacksonville residents may only water 1 day per week. Your watering day is determined by the last digit of your street address. Restrictions are in effect through Until SJRWMD lifts Phase II, review updates at sjrwmd.com/wateringrestrictions/.
When do water restrictions end in Jacksonville, FL?▾
Modified Phase II Severe Water Shortage – SJRWMD Order 2026-006 restrictions are in effect through Until SJRWMD lifts Phase II, review updates at sjrwmd.com/wateringrestrictions/. They may be extended if drought conditions persist or eased if significant rainfall improves water supply levels.