Temperatures in July
It's cool to moderate in July in Lewis with an average temperature of 17°C. Temperatures this month range from a low of 16°C to a high of 18°C. At night, you can expect temperatures between 10°C and 13°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Lewis in July. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of July
The month of July starts in Lewis with cool temperatures, averaging around 17°C during the day and nights close to 11°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-July
By mid-July, the average daytime temperature stays the same at 17°C, with nights close to 12°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of July
By the end of July, the average daytime temperature in Lewis will be around 18°C, with nights close to 12°C. A shower might show up, but overall the weather will be dry and sunny.
Water temperature
The water temperature at Lewis is 12°C this month. This is too cold to swim without protective gear.
Precipitation in July
In July, there is an average of 69 mm of precipitation, spread over 14 days. The wind speed is around 4 Bft, mostly coming from the South.
The average precipitation chance is 45% per day this month.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in July for Lewis. 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.
Lewis in July |
London | ||
|---|---|---|---|
 Average Temperature |
17°C | 23°C | |
 High Temp |
18°C | 27°C | |
| Low Temp |
16°C | 21°C | |
 Total Precipitation |
69 mm | 52 mm | |
| Rainy Days |
14 days | 9 days | |
June
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is July a good time to visit Lewis?
Looking for sun and warm weather? Then July isn’t the best time to be in Lewis. The temperature is too low this month for a warm stay.
Temperature records for Lewis in July
With 26°C, Lewis hit the highest temperature in the last 10 years in July 2023. The lowest daytime temperature in this month was 12°C in 2017. The extreme night temperatures ranged from a low of 5°C to a high of 16°C.
Check out the climate of Lewis for all months and discover the best travel time
Daily Temperature in July in Lewis
This chart shows the average daily temperatures, both day and night, for each day in July in Lewis, 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 July in Lewis
The chart below shows the average daily precipitation in July for Lewis, 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 July, you can expect around 14 days of rain in Lewis.
Daily UV Index in July in Lewis
This chart shows the average daily UV index in July in Lewis, 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 July in Lewis Over the Years
This chart shows the average temperature in July in Lewis, measured in degrees Celsius, over the past years.
Total Precipitation in July in Lewis Over the Years
This chart shows the average precipitation in July in Lewis, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in July for Lewis
Click on a specific day in July for detailed info on the typical weather on that day in Lewis. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in July in Lewis
Have you been to Lewis in July?
Share your weather experience in July in Lewis.
Average Weather in Lewis by Month
Click on a month below to see detailed weather info for Lewis. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
