Newhaven Temperature by Month
Newhaven, East Sussex, United Kingdom has an average annual maximum temperature of 14°C (57°F), with moderate seasonal shifts ranging from 9°C (48°F) in February to 20°C (68°F) in August. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Newhaven Monthly Temperatures
Newhaven experiences balanced seasonal shifts, with noticeable but moderate temperature variations. At night, minimum temperatures range from 16°C (61°F) in August to 5°C (41°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Newhaven by month:
The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM, when the sun's heating effect is strongest.
The chart below shows the average temperature throughout the year:
Temperature: Newhaven vs the United Kingdom
The map below shows the annual temperature across the United Kingdom. You can also select individual months if you want to compare a specific time of year.
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Newhaven vs World: Temperature Compared
Newhaven's average annual maximum temperature is 14°C (57°F). To put that in context, here's how it compares to a few well-known destinations:
Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Newhaven this rarely lasts long on the ground.
For more on Newhaven's weather — including monthly rainfall, sunshine hours, and humidity — visit our Newhaven climate page.
