Iselin
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Iselin Weather in May

May in Iselin brings high temperatures, with highs of 23°C (73°F) and nights dropping to 11°C (52°F). Rainfall is on the higher side this month, averaging around 100 mm (3.9 in), so keep a rain jacket handy.

Rainfall in Iselin in May

Climate statistics over the past 30 years suggest around 13 days of rain, with 100 mm (3.9 in) average for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Iselin in May

May in Iselin brings high temperatures, with highs of 23°C (73°F) and nights around 11°C (52°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights drop to around 11°C (52°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Iselin in May

The month enjoys around 258 hours of sunshine, creating mostly sunny days with good weather conditions.

If your ideal day consists of dry skies and pleasant temperatures, September typically offers the best circumstances for Iselin.

Iselin Temperature in May

Min Temperature
11°C (52°F)
Max Temperature
23°C (73°F)
Chance of Rain
43%
Precipitation
100 mm (3.9 in)
Rainy days
13 days
Humidity
62% *
Sunshine
258 hours *
Percentage Sunshine
57% *
* Data from: New York City, the United States of America (41 KM, 25 Miles).

Iselin Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Iselin - and find the best time to visit.

Best Places in the United States of America in May

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in May →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Iselin in May

Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Iselin in May

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    9/10
  • Cycling
    9/10
  • Walking
    9/10
  • Camping
    6/10
  • Outdoor sports
    9/10

Iselin 3-Day Forecast

Popular in May

Where to go in May - average daytime high across popular destinations.

Bucket list

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