May Weather in Ostra, Romania

Last updated: August 27, 2025

In May, the average temperature in Ostra, Romania is a pleasant 12°C (54°F). However, temperatures can vary significantly, with lows dipping to -2°C (28°F) and highs reaching up to 26°C (79°F). Expect a total precipitation of 116 mm (4.6 in) spread over approximately 17 days, contributing to an average humidity of 73%.

May Temperature in Ostra

In May in Ostra, the average temperature is 12°C (54°F). The maximum can reach 26°C (79°F), while the minimum can be as low as -2°C (28°F). This variation in temperature makes it a great time for travelers to experience both mild days and cooler evenings, so packing layers is advisable.

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

The chart illustrates May temperature patterns in Ostra, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ostra, May typically has an average temperature of 12°C (54°F), with highs reaching up to 26°C (79°F) and lows dropping to around -2°C (28°F).

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

May Precipitation in Ostra

In Ostra in May, the precipitation amount is 116 mm (4.6 in) spread over 17 days.

May Precipitation Trends in Ostra

The chart displays monthly precipitation patterns in Ostra, 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 Ostra, May typically receives around 116 mm (4.6 inches) of precipitation spread over approximately 17 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 Ostra

In Ostra in May, humidity is 73%. With an average temperature of 12°C (54°F), this humidity feels like a chilly embrace, making travel moderately uncomfortable as the dampness can chill you to your bones, especially during early morning excursions or late afternoon strolls.

May Average Humidity in Ostra

This chart illustrates the average monthly humidity levels in Ostra, 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 Ostra is approximately 73%, 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 Ostra

In Ostra in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Ostra.

Maximum UV Index Levels in Ostra for May

The chart shows the monthly maximum UV Index (UVI) for Ostra 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 Ostra typically reaches 8, which falls under the very high exposure category.

Data source: Ostra 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 Ostra Compares to Other Months

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

This table compares monthly weather conditions in Ostra, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (26°F)	27 mm (1.1 inches)	92%	low
February Weather	-1°C (30°F)	50 mm (2.0 inches)	88%	moderate
March Weather	2°C (35°F)	60 mm (2.3 inches)	86%	moderate
April Weather	7°C (45°F)	54 mm (2.1 inches)	79%	high
May Weather	12°C (54°F)	116 mm (4.6 inches)	73%	very high
June Weather	16°C (62°F)	153 mm (6.0 inches)	73%	very high
July Weather	17°C (63°F)	111 mm (4.4 inches)	68%	very high
August Weather	18°C (64°F)	86 mm (3.4 inches)	56%	very high
September Weather	13°C (56°F)	52 mm (2.0 inches)	62%	high
October Weather	8°C (47°F)	35 mm (1.4 inches)	80%	moderate
November Weather	3°C (38°F)	33 mm (1.3 inches)	89%	moderate
December Weather	-1°C (31°F)	59 mm (2.3 inches)	90%	low