Temperatures in May
It's warm in May in Iselin with an average temperature of 23°C. Temperatures this month range from a low of 18°C to a high of 28°C. At night, you can expect temperatures between 9°C and 18°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Iselin in May. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of May
The month of May starts in Iselin with mild temperatures, averaging around 20°C during the day and nights close to 11°C. You can expect regular precipitation, but there’s also a chance for some sunny days in the first days of the month.
Mid-May
By mid-May, the average daytime temperature rises to around 24°C, with nights close to 14°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days.
End of May
By the end of May, the average daytime temperature in Iselin will be around 25°C, with nights close to 16°C. There’s a significant chance of many days with precipitation.
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Precipitation in May
In May, there is an average of 150 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the South.
The average precipitation chance is 30% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in May for Iselin. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Iselin in May |
London | ||
|---|---|---|---|
 Average Temperature |
23°C | 18°C | |
 High Temp |
28°C | 21°C | |
| Low Temp |
18°C | 15°C | |
 Total Precipitation |
150 mm | 46 mm | |
| Rainy Days |
9 days | 8 days | |
April
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is May a good time to visit Iselin?
After some sun? Then May isn’t the best time to be in Iselin. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Iselin in May
With 36°C, Iselin hit the highest temperature in the last 10 years in May 2022. The lowest daytime temperature in this month was 8°C in 2020. The extreme night temperatures ranged from a low of 1°C to a high of 25°C.
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Daily Temperature in May in Iselin
This chart shows the average daily temperatures, both day and night, for each day in May in Iselin, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in May in Iselin
The chart below shows the average daily precipitation in May for Iselin, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for May, you can expect around 9 days of rain in Iselin.
Daily UV Index in May in Iselin
This chart shows the average daily UV index in May in Iselin, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in May in Iselin Over the Years
This chart shows the average temperature in May in Iselin, measured in degrees Celsius, over the past years.
Total Precipitation in May in Iselin Over the Years
This chart shows the average precipitation in May in Iselin, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in May for Iselin
Click on a specific day in May for detailed info on the typical weather on that day in Iselin. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in Iselin
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Average Weather in Iselin by Month
Click on a month below to see detailed weather info for Iselin. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
