Portstewart in january: average Weather, Temperature and Climate
Weather in Portstewart in january 2026
The weather in Portstewart in january comes from statistical datas on the past years. You can view the weather statistics the entire month, but also by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout january
very bad weather 43.4cm
Weather at 6am
43°F
Cloudy
26% of time
22%
21%
14%
Weather at 12pm
45°F
Cloudy
25% of time
22%
19%
16%
Weather at 6pm
43°F
Moderate rain at times
25% of time
24%
21%
15%
Weather at 3am
43°F
25%
22%
16%
15%
Evolution of daily average temperature and precipitation in Portstewart in january
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Portstewart in january.
The climate of Portstewart in january is very bad
In january in Portstewart, the climate is wet (with 4.9in of precipitation over 9 days). The weather is worst than the previous month since in december there is an average of 4.7in of precipitation over 9 days.
The climate is quite cold here january. Do not forget to cover yourself! The high seasonal norm is 47°F. In the morning the temperature drops to 41°F. Thus, the mean temperature average on this month of january in Portstewart is 43°F. Note that these seasonal averages are in contrast with those observed in Portstewart in the month of january with a maximum record of 56°F in 2016 and a minimum record of 29°F in 2010.
On average, in Portstewart, the days of january last 07:47. Sunrise is at 08:43 and sets at 16:30.
Seasonal average climate and temperature of Portstewart in january
Check below seasonal norms These datas are compiled from the weather statements of the last years of the month of january.
| January | |||||
| Outside temperature | |||||
| Average temperature | 43°F | ||||
| Highest temperature | 47°F | ||||
| Lowest temperature | 41°F | ||||
| Highest record temperature | 56°F (2016) | ||||
| Lowest record temperature | 29°F (2010) | ||||
| Number of days at -32°F | 0 day(s) (0%) | ||||
| Sea temperature | |||||
| Average sea temperature | 49°F | ||||
| Lowest sea temperature | 47°F | ||||
| Highest sea temperature | 51°F | ||||
| Wind | |||||
| Wind speed | 33km/h | ||||
| Wind temperature | 34°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 4.9in | ||||
| Number of days with rainfall | 9 day(s) (29%) | ||||
| Record daily rainfall | 2.1in (2021) | ||||
| Snowfall | 43.4cm | ||||
| Other climate data | |||||
| Humidity | 87% | ||||
| Visibility | 8.75km | ||||
| Cloud cover | 63% | ||||
| UV index | 3 | ||||
| Daily sunshine hours | 6 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 08:43 | ||||
| Time of sunset | 16:30 | ||||
| Length of day | 07:47 | ||||
| Our opinion about the weather in january | |||||
| Our opinion at whereandwhen.net | very bad | ||||
How was the weather last january?
Here is the day by day recorded weather in Portstewart in january 2025:
43°F to 47°F
43°F to 45°F
45°F to 47°F
40°F to 43°F
40°F to 43°F
43°F to 45°F
41°F to 43°F
41°F to 43°F
41°F to 43°F
40°F to 41°F
41°F to 43°F
41°F to 47°F
49°F to 52°F
50°F to 52°F
49°F to 52°F
45°F to 47°F
47°F to 49°F
45°F to 49°F
47°F to 49°F
47°F to 49°F
45°F to 47°F
43°F to 47°F
41°F to 45°F
43°F to 47°F
41°F to 43°F
40°F to 47°F
43°F to 45°F
45°F to 47°F
45°F to 47°F
43°F to 45°F
43°F to 47°F
Map: other cities in Northern Ireland in january
Cities near Portstewart:
| Portrush in january | very bad weather |
| Castlerock in january | very bad weather |
| Coleraine in january | very bad weather |
| Ballymoney in january | very bad weather |
| Limavady in january | very bad weather |
| Ballycastle (Causeway Coast) in january | very bad weather |
| Maghera in january | very bad weather |
| Derry (Londonderry) in january | very bad weather |
| Glenariff in january | very bad weather |
| Ballymena in january | very bad weather |
| Magherafelt in january | very bad weather |
| Cookstown in january | very bad weather |
Click over cities on the map for information about the weather in january.
Portstewart
perfect weather
good
tolerable
bad
very bad
Weather data for Portstewart in january:
Weather data for Portstewart for january are derived from an average of the weather forecast since 2009 in Portstewart. There is a margin of error and these forecasts are to be considered as general information only. The weather in Portstewart can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Portstewart.