Temperatures in May
It's warm in May in Watertown with an average temperature of 26°C. Temperatures this month range from a low of 22°C to a high of 30°C. At night, you can expect temperatures between 10°C and 19°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Watertown 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 Watertown with warm temperatures, averaging around 25°C during the day and nights close to 13°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 27°C, with nights close to 16°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
Temperatures vary between day and night, so it’s smart to wear layers.
End of May
By the end of May, the average daytime temperature in Watertown will be around 29°C, with nights close to 18°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days.
As it gets cooler in the evening, it’s best to wear layers.
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Precipitation in May
In May, there is an average of 141 mm of precipitation, spread over 10 days. The wind speed is around 3 Bft, mostly coming from the South.
The average precipitation chance is 32% 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 Watertown. 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.
Watertown in May |
London | ||
|---|---|---|---|
 Average Temperature |
26°C | 18°C | |
 High Temp |
30°C | 21°C | |
| Low Temp |
22°C | 15°C | |
 Total Precipitation |
141 mm | 46 mm | |
| Rainy Days |
10 days | 8 days | |
April
UV index
The UV index is a maximum of 9 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 Watertown?
After some sun? Then May isn’t the best time to be in Watertown. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Watertown in May
With 34°C, Watertown hit the highest temperature in the last 10 years in May 2019. The lowest daytime temperature in this month was 12°C in 2017. The extreme night temperatures ranged from a low of 0°C to a high of 24°C.
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Daily Temperature in May in Watertown
This chart shows the average daily temperatures, both day and night, for each day in May in Watertown, 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 Watertown
The chart below shows the average daily precipitation in May for Watertown, 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 10 days of rain in Watertown.
Daily UV Index in May in Watertown
This chart shows the average daily UV index in May in Watertown, 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 Watertown Over the Years
This chart shows the average temperature in May in Watertown, measured in degrees Celsius, over the past years.
Total Precipitation in May in Watertown Over the Years
This chart shows the average precipitation in May in Watertown, 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 Watertown
Click on a specific day in May for detailed info on the typical weather on that day in Watertown. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in Watertown
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Average Weather in Watertown by Month
Click on a month below to see detailed weather info for Watertown. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Watertown for all months at once
