Fruit

Watermelon

In season here from August through September.

In season in SW Michigan

WatermelonAugust–September

In season

Months from the MSU Extension seasonal availability guide. Weather shifts dates a little each year.

Key nutrients

Per 1 cup diced, raw · 152 g

Watermelon nutrients per 1 cup diced, raw
NutrientAmount%DV
Calories46
Carbohydrate11.5 g4%
Fiber0.6 g2%
Vitamin A43 mcg5%
Vitamin C12 mg14%
Potassium170 mg4%

FDC ID 167765 · Watermelon, raw (SR Legacy)

%DV uses FDA Daily Values for adults and children 4+. Values are USDA lab averages scaled to the serving; your harvest may differ.

Wellness

A cup of diced watermelon has about 46 calories, plus 12 mg of vitamin C (14% DV). That makes it a good source of vitamin C. (USDA) The NIH Office of Dietary Supplements says the body needs vitamin C to make collagen, which helps wounds heal, and that vitamin C improves absorption of iron from plant foods and helps the immune system work properly. (NIH ODS)

Pick, store and use

  • Pick

    Choose one with a hard rind that feels heavy for its size, with a yellow patch on the “belly” where it sat on the ground. Thumping doesn't tell you if it's ripe. (MSU Extension)

  • Store

    Uncut watermelons keep up to 2 weeks at 45–50°F. Wrap cut pieces tightly and refrigerate; they last up to 3 days. (MSU Extension)

  • Use

    Rinse or scrub the rind under cool running water before cutting. (MSU Extension)

Where to get it nearby

See all farms →

Farms whose listing mentions watermelon. Check with the farm before you go.

Sources: USDA FoodData Central, FDC ID 167765 · FDA Daily Values · NIH ODS: Vitamin C · MSU Extension Michigan Fresh: Melons · MSU Extension seasonal availability guide · Farm list: Farm to Table Growers research (2026).