Neptun
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Neptun Weather in January

Neptun in January sees low temperatures, with highs around 6°C (43°F) and overnight lows of 1°C (34°F). Around 51 mm (2 in) of rainfall is typical, so a light rain jacket is a sensible addition to your bag.

Rainfall in Neptun in January

Expect around 9 days of rain based on historical data, with 51 mm (2 in) average. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Neptun in January

Expect highs of 6°C (43°F) in Neptun in January, with nights dropping to around 1°C (34°F). January is part of the winter season. Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. Nights drop to 1°C (34°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet. This is usually the coldest month of the year, so be sure to prepare with plenty of winter gear.

Sunshine in Neptun in January

With limited sunshine this month, there are about 83 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.

If you prefer dry days with pleasant temperatures, January may not be the ideal month to visit Neptun. Our weather planner can help you explore destinations with more pleasant weather conditions.

Neptun Temperature in January

Min Temperature
1°C (34°F)
Max Temperature
6°C (43°F)
Chance of Rain
31%
Precipitation
51 mm (2 in)
Rainy days
9 days
Humidity
86% *
Sunshine
83 hours *
Percentage Sunshine
*
* Data from: Constanţa, Romania (39 KM, 24 Miles).

Neptun Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Neptun - and find the best time to visit.

Daily Historical Temperatures

50-year average (1976-2026)

Based on our historical records, temperatures in Neptun typically stay consistent throughout January, with daily highs averaging around 6°C (43°F). Nights are very cold, with lows around -2°C (28°F).

Average temperatures in January

Daily Historical Precipitation

50-year average (1976-2026)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in January

Historical weather records for Neptun in January

Browse day-by-day weather records for Neptun spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Neptun historical weather extremes in January

The extremes listed below come from historical weather data collected in Neptun from 1997 through 2025.

  • The hottest January day on record in Neptun reached 19°C (66°F) (January 29, 2025).

Best Places in Romania in January

Find out more about the weather in Romania and which places have the best travel conditions in this month. See all of Romania in January →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Neptun in January

Cold weather calls for smart layering in January. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Rain gear is recommended, you can expect wet weather on multiple days. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.

What To Do in Neptun in January

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    4/10
  • Cycling
    4/10
  • Walking
    4/10
  • Camping
    4/10
  • Outdoor sports
    4/10

Neptun 3-Day Forecast

More climate data for Neptun

Popular in January

Where to go in January - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.