Across the year, daylight in Raleigh ranges from about 9h 34m in December to 14h 26m in June — a 4h 51m swing that shapes sleep, mood and training rhythms. From roughly December through February, the sun sits too low for much vitamin D production.
The nearest other Live10X city guide is Charlotte, about 130 miles away.
Raleigh by the numbers
- County
- Wake County
- Climate
- Humid subtropical
- Elevation
- under 500 ft
- Latitude
- 35.8°N
- Shortest day
- 9h 34m
- Longest day
- 14h 26m
- Vitamin D winter
- December through February
At a glance
Raleigh at a glance
- Top local priority in Raleigh: heat-smart summer training.
- Daylight swings from about 9h 34m to 14h 26m across the year — anchor your wake time and get morning light.
- Sunlight is too weak for much vitamin D production from roughly December through February; a blood test shows where you stand.
- Use the Neuse River Trail and William B. Umstead State Park for easy, regular outdoor movement.
Climate & lifestyle
What living in Raleigh means for your health
Raleigh has a humid subtropical climate — long, hot and humid summers, mild to cool winters and rain spread through the year, with summer thunderstorms. Summer heat is the main training and sleep challenge; spring and fall are prime outdoor seasons.
- heat-smart summer training
- hydration with electrolytes
- protecting sleep and focus from long screen days
- protecting sleep on hot nights
Light, sleep & vitamin D
Daylight in Raleigh across the year
9h 34m
Shortest day (December)
14h 26m
Longest day (June)
~3 mo
Low-UVB “vitamin D winter”
At about 35.8°N, Raleigh sees a 4h 51m swing in day length between the solstices. Research suggests winter UVB is too weak for meaningful vitamin D production for roughly three months a year. That's roughly December through February. Bright morning light helps anchor your body clock, and a simple blood test shows whether your vitamin D is where it should be.
Calculated from latitude using standard solar formulas and published latitude research. How we calculate this
Local wellness trends
Wellness trends in Raleigh
Heat-season strategy
Long summers in Raleigh push workouts to early mornings, shaded trails and indoor gyms — and make hydration a year-round habit.
Executive & founder health
Raleigh's tech community drives demand for focus, energy and preventive screening — and for protecting sleep from screen-heavy workdays.
Campus-driven fitness
A large student and faculty population keeps Raleigh's gyms, run clubs and rec fields busy, and campus events bring health research to the public.
Green-space wellness
Forested parks near Raleigh make it easy to get the 120+ minutes a week in nature that research links with better well-being.
Local health optimization resources
Places to move, recover and eat well in Raleigh
- Trailthe Neuse River TrailCar-free miles for zone 2 walks, runs and rides.
- ParkWilliam B. Umstead State ParkGreen space for walks, bodyweight workouts and time in nature.
- ParkDorothea Dix ParkGreen space for walks, bodyweight workouts and time in nature.
Testing
At-home wellness genetic testing
Available throughout Raleigh: order online, collect a sample at home and review results with a qualified professional.
Learn more about at-home wellness genetic testingHealthcare
Preventive care & baseline labs
Primary care clinicians in Wake County can order baseline labs — such as a lipid panel, HbA1c, vitamin D and B12 — useful context for any wellness plan.
Learn more about preventive care & baseline labsSeasonal playbook
A seasonal wellness playbook for Raleigh
- Summer: move hard sessions to early morning or indoors, and watch the heat index, not just the temperature.
- Spring and fall: your best months for long walks, runs, rides and outdoor strength work.
- Winter: mild days keep outdoor activity possible — use them to maintain your aerobic base.
- Year-round: day length only varies by about 4h 51m, so a consistent sleep schedule is easy to hold — protect it.
Recommended reading
The most relevant guides for Raleigh residents
FAQ
Raleigh wellness FAQs
Where can I get wellness genetic testing in Raleigh?
What's the best time of year to exercise outdoors in Raleigh?
Can you get enough vitamin D from the sun in Raleigh?
How do seasonal daylight changes in Raleigh affect sleep?
What are good places to exercise outside in Raleigh?
How can busy professionals in Raleigh protect energy and focus?
The bottom line
Living well in Raleigh means working with its hot, humid summers and mild winters: heat-smart summer training, hydration with electrolytes and protecting sleep and focus from long screen days. Add the fundamentals — consistent sleep, daily movement, strength training and a whole-food diet — and personalize with the wellness assessment and at-home testing.



