Northampton, United Kingdom Climate & Monthly Averages
Northampton has an oceanic climate. July is the hottest month, averaging 71° by day; January is the coldest at 45°.
How weather changes through the year in Northampton
Northampton is a oceanic city - mild temperatures year-round with regular rainfall. July is the warmest month at 71°F (22°C) and January the coolest at 45°F (7°C), over 28.7 inches (728 mm) of precipitation a year.
Northampton climate quick facts
- Hottest month: July - highs near 71°F (22°C)
- Coldest month: January - highs near 45°F (7°C)
- Decade extremes (2015-2024): 100°F (38°C) high · 19°F (-7°C) low
- Wettest month: October (11 rainy days) · Sunniest: July (10.8 h sun/day)
- Climate type: oceanic
- Annual swing: 13°C between the average warmest and coolest month · day to night: 7°C
- Snow: about 3 days a year
- Average humidity: 80%
Temperatures, rain and sunshine
Three of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is August through September. Warmth peaks in July: highs of 71°F (22°C), lows of 56°F (13°C). January sits at the other end of the year: 45°F (7°C) by day, 35°F (2°C) at night. Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 100°F (38°C) and the lowest daily minimum 19°F (-7°C).
Days and nights are about 7°C apart on average - narrower than about 82% of the cities we track.
July is the brightest month at 10.8 hours of sun a day, against an annual average of 7.3 - duller than all but 4% of the 3496 cities in our dataset. October is the wettest month at 2.9 inches (72 mm) over 11 days; April is the driest.
Where Northampton sits among other climates
- 28% of the year's precipitation falls in its wettest three months - more evenly spread than almost every other city we track.
These comparisons use the same ten-year window for every city in the dataset.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 45° | 35° | 12 | 2.1 in | 4.2 h/day | 8.2 h | 39% | 87% |
| February | 47° | 36° | 11 | 1.9 in | 5.3 h/day | 9.8 h | 38% | 83% |
| March | 50° | 38° | 13 | 2.5 in | 6.4 h/day | 11.7 h | 42% | 80% |
| April | 55° | 40° | 11 | 1.8 in | 9.2 h/day | 13.8 h | 37% | 75% |
| May | 61° | 46° | 11 | 2.4 in | 10.2 h/day | 15.7 h | 35% | 75% |
| June | 67° | 52° | 10 | 2.4 in | 10.6 h/day | 16.7 h | 33% | 74% |
| July | 71° | 56° | 13 | 2.8 in | 10.8 h/day | 16.3 h | 42% | 72% |
| August | 70° | 56° | 11 | 2.3 in | 9.7 h/day | 14.7 h | 35% | 74% |
| September | 66° | 52° | 11 | 2.5 in | 8.1 h/day | 12.6 h | 36% | 78% |
| October | 58° | 47° | 11 | 2.9 in | 5.9 h/day | 10.5 h | 36% | 84% |
| November | 50° | 41° | 11 | 2.5 in | 4.2 h/day | 8.7 h | 37% | 87% |
| December | 47° | 39° | 13 | 2.7 in | 3.1 h/day | 7.7 h | 42% | 89% |
Northampton month by month
Each card shows the average high and low. The bar places that month between Northampton's coldest night and warmest afternoon.
January
- Rain
- 12 days
- Sunshine
- 4.2 h
- Daylight
- 8.2 h
February
- Rain
- 11 days
- Sunshine
- 5.3 h
- Daylight
- 9.8 h
March
- Rain
- 13 days
- Sunshine
- 6.4 h
- Daylight
- 11.7 h
April
- Rain
- 11 days
- Sunshine
- 9.2 h
- Daylight
- 13.8 h
May
- Rain
- 11 days
- Sunshine
- 10.2 h
- Daylight
- 15.7 h
June
- Rain
- 10 days
- Sunshine
- 10.6 h
- Daylight
- 16.7 h
July
- Rain
- 13 days
- Sunshine
- 10.8 h
- Daylight
- 16.3 h
August
- Rain
- 11 days
- Sunshine
- 9.7 h
- Daylight
- 14.7 h
September
- Rain
- 11 days
- Sunshine
- 8.1 h
- Daylight
- 12.6 h
October
- Rain
- 11 days
- Sunshine
- 5.9 h
- Daylight
- 10.5 h
November
- Rain
- 11 days
- Sunshine
- 4.2 h
- Daylight
- 8.7 h
December
- Rain
- 13 days
- Sunshine
- 3.1 h
- Daylight
- 7.7 h
Looking for warmer alternatives? Browse warm places by month, or compare Northampton's coolest part of the year: January, December, February.
A season-by-season guide to Northampton
Spring (March through May)
Spring is mild here - highs near 56°F (13°C), nights near 41°F (5°C), and rain falls on around 35 of the 90 days.
Summer (June through August)
Summer is mild and warm here - highs near 69°F (21°C), nights near 54°F (12°C), and rain falls on around 34 of the 90 days. Daylight is generous - around 10.4 hours of sun a day.
Fall (September through November)
Fall is crisp but comfortable here - highs near 58°F (14°C), nights near 47°F (8°C), and rain falls on around 33 of the 90 days.
Winter (December through February)
Through winter, Northampton stays firmly cold: 46°F (8°C) by day, 37°F (3°C) after dark, and rain falls on around 36 of the 90 days.
Questions people ask about Northampton's climate
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The most useful weather window for Northampton
Best time to visit Northampton
May to June and August to September is the sweet spot for Northampton - warm days, manageable rainfall and plenty of daylight line up. Expect 66°F (19°C) in the afternoon and around 11 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in May.
What to pack
Pack for Northampton with a warm jacket and layers for the cooler season and a compact umbrella or rain shell. July nights average 56°F (13°C), so evenings rarely match the afternoons.
Northampton temperature extremes in the 2015–2024 dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.