April Weather in Isthmia, Greece

Last updated: August 23, 2025

In Isthmia, Greece, the average temperature in April hovers around 15°C (58°F). Expect minimums dipping to 7°C (44°F) and highs soaring to 27°C (80°F). With 40 mm (1.6 in) of precipitation spread across about 5 days, don't forget your umbrella! The air carries an average humidity of 75%, lending a refreshing feel to the atmosphere.

April Temperature in Isthmia

In April in Isthmia, the average temperature is 15°C (58°F). Maximums can reach 27°C (80°F), and minimums can be as low as 7°C (44°F). It's an ideal time to explore outdoor activities while enjoying mild and pleasant weather.

April Weather in Isthmia: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Isthmia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Isthmia, April typically has an average temperature of 15°C (58°F), with highs reaching up to 27°C (80°F) and lows dropping to around 7°C (44°F).

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

April Precipitation in Isthmia

In Isthmia in April, the precipitation amount is 40 mm (1.6 in) over the course of 5 days.

April Precipitation Trends in Isthmia

The chart displays monthly precipitation patterns in Isthmia, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Isthmia, April typically receives around 40 mm (1.6 inches) of precipitation spread over approximately 5 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

April Humidity in Isthmia

In Isthmia in April humidity is 75%. With an average temperature of 15°C (58°F), this humidity feels like you're stepping into a warm, damp blanket, making travel a bit more challenging as the air clings to your skin, leaving you craving a refreshing breeze along the way.

April Average Humidity in Isthmia

This chart illustrates the average monthly humidity levels in Isthmia, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Isthmia is approximately 75%, offering insight into how humid the weather typically is during this month.

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

April UV Index in Isthmia

In Isthmia in April, 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 Isthmia.

Maximum UV Index Levels in Isthmia for April

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

Data source: Isthmia April 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 April Weather in Isthmia Compares to Other Months

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

This table compares monthly weather conditions in Isthmia, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (48°F)	61 mm (2.4 inches)	76%	moderate
February Weather	10°C (51°F)	58 mm (2.3 inches)	75%	moderate
March Weather	11°C (53°F)	49 mm (1.9 inches)	74%	high
April Weather	15°C (58°F)	40 mm (1.6 inches)	75%	very high
May Weather	19°C (67°F)	22 mm (0.9 inches)	77%	very high
June Weather	23°C (74°F)	21 mm (0.8 inches)	71%	extreme
July Weather	27°C (80°F)	5 mm (0.2 inches)	68%	very high
August Weather	27°C (81°F)	4 mm (0.2 inches)	63%	very high
September Weather	24°C (75°F)	29 mm (1.2 inches)	65%	very high
October Weather	19°C (66°F)	42 mm (1.6 inches)	72%	high
November Weather	15°C (59°F)	50 mm (2.0 inches)	75%	moderate
December Weather	11°C (53°F)	61 mm (2.4 inches)	76%	moderate