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May Weather in Old Tappan, United States

Last updated: June 24, 2025

In Old Tappan, United States, the average temperature in May hovers around 16°C (61°F). Expect a range from a chilly 1°C (35°F) to a warm 32°C (90°F). During this month, precipitation totals around 121 mm (4.8 in) spread over 12 days, while the average humidity remains at a comfortable 69%. Prepare for a dynamic climate!

May Temperature in Old Tappan

In May in Old Tappan, the average temperature is 16°C (61°F). Maximum temperatures can reach up to 32°C (90°F), while minimums can drop as low as 1°C (35°F). Be prepared for a wide range of temperatures when traveling during this time!

May Weather in Old Tappan: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Old Tappan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Old Tappan, May typically has an average temperature of 16°C (61°F), with highs reaching up to 32°C (90°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec323540506170777568594537
Data source: Temperature data for Old Tappan generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Old Tappan

In Old Tappan in May, the precipitation amount reaches 121 mm (4.8 in) over the course of 12 days.

May Precipitation Trends in Old Tappan

The chart displays monthly precipitation patterns in Old Tappan, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Old Tappan, May typically receives around 121 mm (4.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec6998931141219515012910613586109
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Old Tappan

In Old Tappan in May, humidity is 69%. With an average temperature of 16°C (61°F), this humidity feels like a mild, humid embrace, making travel enjoyable yet requiring a light layer for comfort while exploring.

May Average Humidity in Old Tappan

This chart illustrates the average monthly humidity levels in Old Tappan, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Old Tappan is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Old Tappan

In Old Tappan in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Old Tappan.

Maximum UV Index Levels in Old Tappan for May

The chart shows the monthly maximum UV Index (UVI) for Old Tappan in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Old Tappan typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356810101098642
Data source: Old Tappan May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How May Weather in Old Tappan Compares to Other Months

Weather in Old Tappan varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Old Tappan, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Old Tappan, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)69 mm (2.7 inches)84%moderate
February Weather2°C (35°F)98 mm (3.9 inches)82%moderate
March Weather5°C (41°F)93 mm (3.7 inches)81%high
April Weather10°C (51°F)114 mm (4.5 inches)78%very high
May Weather16°C (61°F)121 mm (4.8 inches)69%very high
June Weather21°C (71°F)95 mm (3.7 inches)69%very high
July Weather25°C (77°F)149 mm (5.9 inches)62%very high
August Weather24°C (75°F)129 mm (5.1 inches)65%very high
September Weather20°C (69°F)106 mm (4.2 inches)68%very high
October Weather15°C (59°F)135 mm (5.3 inches)74%high
November Weather7°C (45°F)86 mm (3.4 inches)82%moderate
December Weather3°C (37°F)109 mm (4.3 inches)80%low

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