The late summer and early fall months are a great time to head outdoors for your fitness routine. But how do you make sure you're really getting in a great workout without the help of resistance equipment and mile-counters on the machines? Whether you choose to go swimming or head outside for a long jog, the heat may get to you faster than it would at the gym--which means you don't always know if you're pushing yourself hard enough. Here are ways to make the most of your workouts during late summer:

1. Wear the right clothing. Make sure your workout gear is well-suited for the weather or you risk dehydration and discomfort from the heat and humidity. You'll need lightweight, light-colored clothing made with moisture-wicking fabric so that your skin can breathe.

2. Throw on a visor. Pull your hair back in a ponytail if you have longer hair, and brush it back neatly if you have shorter hair so that you can wear a visor comfortably. A visor will help to block out the powerful sun rays of the late summer months and help you stay focused.

3. Wear sunglasses. Your eyes need to be protected from damaging UV rays, so make sure you're wearing a pair of well-fitting sunglasses that cover the entire eye area. Wraparound sunglasses and oversized sunglasses that reach your eyebrows are your best bets for an outdoor workout.

4. Carry a pedometer. Keep track of the miles you've covered so you're not pushing yourself beyond your limit. Set a goal and monitor your heart rate at regular intervals throughout the session so you don't injure yourself in the heat.

5. Don't forget the water bottle! Nothing will make you tired more quickly than being dehydrated. When you're working out under the hot sun, you need to prevent dehydration, so take along a large water bottle and keep it topped off from a water fountain whenever possible.

Working out outdoors is a great way to make the most of the nice weather during the late summer months and enjoy a change of scenery. Make sure you're well-prepared for the climate and protect yourself with these essential tips...and don't forget the sunscreen!