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Weather in Suffolk County, New York for May 2027

Your guide to Suffolk County weather in May - trends and predictions

    Temperatures

  • In general, the average temperature in Suffolk County at the beginning of May is 16.7 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 20.4 °C by the end of May.

  • Rain 🌧️

  • Suffolk County in May brings notable rainfall, with an average of 17 rainy days and a total precipitation of 218 mm.

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Average dry days
14
Dry days
Average rainy days
17
Rainy days
Average snowy days
0
Snow days
Average temperatures
18°/12°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
76 %
Avg humidity

Suffolk County Weather May

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Temperatures trend during May in Suffolk County

See the weather trend as well as the moving average line

May weather in Suffolk County day by day

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Date Weather Temperatures Rain UV More
May 1 Cloudy
Cloudy
16° /8° 0 mm 7
May 2 Overcast
Overcast
17° /9° 5.5 mm 6
May 3 Overcast
Overcast
17° /9° 0.2 mm 7
May 4 Moderate or heavy rain shower
Moderate or heavy rain shower
17° /11° 4.9 mm 7
May 5 Moderate or heavy rain shower
Moderate or heavy rain shower
17° /12° 8.8 mm 7
May 6 Moderate or heavy rain shower
Moderate or heavy rain shower
15° /12° 39.2 mm 5
May 7 Overcast
Overcast
18° /10° 1.8 mm 6
May 8 Overcast
Overcast
18° /10° 0.4 mm 7
May 9 Moderate or heavy rain shower
Moderate or heavy rain shower
15° /11° 13.1 mm 3
May 10 Overcast
Overcast
20° /10° 0.3 mm 6
May 11 Partly cloudy
Partly cloudy
18° /11° 0.2 mm 6
May 12 Partly cloudy
Partly cloudy
17° /10° 0.1 mm 8
May 13 Patchy rain possible
Patchy rain possible
17° /11° 0.3 mm 6
May 14 Moderate or heavy rain shower
Moderate or heavy rain shower
17° /11° 12.5 mm 3
May 15 Fog
Fog
18° /11° 0 mm 6
May 16 Fog
Fog
20° /12° 0 mm 7
May 17 Mist
Mist
23° /14° 0 mm 7
May 18 Overcast
Overcast
22° /15° 0 mm 7
May 19 Sunny
Sunny
23° /13° 0.1 mm 8
May 20 Sunny
Sunny
23° /12° 3.2 mm 7
May 21 Sunny
Sunny
16° /10° 5.2 mm 4
May 22 Partly cloudy
Partly cloudy
17° /11° 22.6 mm 6
May 23 Moderate or heavy rain shower
Moderate or heavy rain shower
16° /10° 5.9 mm 4
May 24 Overcast
Overcast
19° /11° 13.8 mm 4
May 25 Partly cloudy
Partly cloudy
20° /12° 1 mm 5
May 26 Moderate rain at times
Moderate rain at times
21° /14° 0.3 mm 7
May 27 Moderate or heavy rain shower
Moderate or heavy rain shower
21° /13° 8.4 mm 5
May 28 Cloudy
Cloudy
21° /15° 1.9 mm 7
May 29 Patchy rain possible
Patchy rain possible
21° /13° 6.2 mm 7
May 30 Patchy rain possible
Patchy rain possible
17° /11° 8.1 mm 6
May 31 Cloudy
Cloudy
22° /10° 28.5 mm 7
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Important Notice
Our weather forecast for Suffolk County in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Suffolk County forecast closer to your planned date for the most up-to-date weather information.

Suffolk County in May - FAQ

What are the expected maximum and minimum temperatures in Suffolk County during May?

Enjoy moderate daytime temperatures of up to 18° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Suffolk County during May?

Significant rainfall exceeding 218 mm is expected in Suffolk County during May, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Suffolk County during May?

The average wind speed in Suffolk County during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

May rainfall patterns in Suffolk County

Explore the daily rainfall trends and prepare for Suffolk Countys May weather 💧
Typically, Suffolk County has 17 rainy days in May with a total of 218 mm of rainfall.

UV exposure in Suffolk County during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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Location coordinates Where is Suffolk County?

Get accurate weather forecasts for Suffolk County, located at latitude 40.817 and longitude -73.066. Stay updated with localized weather information tailored for Suffolk County.

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