May Weather in Osterville, United States

Last updated: June 24, 2025

In May, the average temperature in Osterville, United States hovers around 13°C (56°F), with a minimum of 4°C (39°F) and a maximum reaching 28°C (82°F). Expect about 102 mm (4.0 in) of precipitation spread over 12 days, accompanied by an average humidity of 75%. Prepare for a mix of mild and wet days!

May Temperature in Osterville

In May in Osterville, the average temperature is 13°C (56°F). The maximum can reach 28°C (82°F), while the minimum can drop as low as 4°C (39°F). This makes Osterville an ideal destination for travelers seeking mild weather with a pleasant range of temperatures.

May Weather in Osterville: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Osterville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Osterville, May typically has an average temperature of 13°C (56°F), with highs reaching up to 28°C (82°F) and lows dropping to around 4°C (39°F).

Data source: Temperature data for Osterville generated using information from the Copernicus Climate Change Service.

May Precipitation in Osterville

In Osterville in May, the total precipitation amount is 102 mm (4.0 in), occurring over a span of 12 days.

May Precipitation Trends in Osterville

The chart displays monthly precipitation patterns in Osterville, 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 Osterville, May typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 12 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Osterville

In Osterville in May humidity is 75%. With an average temperature of 13°C (56°F), this humidity feels like a damp chill enveloping you, making travel a bit uncomfortable, as the moisture in the air clings to your skin and can dampen your spirits as well as your clothes.

May Average Humidity in Osterville

This chart illustrates the average monthly humidity levels in Osterville, 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 Osterville is approximately 75%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Osterville

In Osterville in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Osterville.

Maximum UV Index Levels in Osterville for May

The chart shows the monthly maximum UV Index (UVI) for Osterville 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 Osterville typically reaches 9, which falls under the very high exposure category.

Data source: Osterville 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 Osterville Compares to Other Months

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

This table compares monthly weather conditions in Osterville, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (35°F)	86 mm (3.4 inches)	84%	moderate
February Weather	2°C (36°F)	103 mm (4.1 inches)	84%	moderate
March Weather	4°C (39°F)	112 mm (4.4 inches)	82%	high
April Weather	8°C (47°F)	125 mm (4.9 inches)	79%	very high
May Weather	13°C (56°F)	102 mm (4.0 inches)	75%	very high
June Weather	19°C (66°F)	87 mm (3.4 inches)	78%	very high
July Weather	23°C (73°F)	91 mm (3.6 inches)	76%	very high
August Weather	23°C (73°F)	78 mm (3.1 inches)	76%	very high
September Weather	19°C (67°F)	108 mm (4.2 inches)	75%	very high
October Weather	15°C (59°F)	151 mm (5.9 inches)	75%	high
November Weather	8°C (47°F)	93 mm (3.7 inches)	80%	moderate
December Weather	4°C (39°F)	121 mm (4.8 inches)	80%	low