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Weather in Roskilde - 14-day forecast

Detailed weather forecast for Roskilde, Denmark: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Roskilde
today🌧️ 17°💧 1.2 mm
Sun☁️ 17°💧 1.2 mm
Mon🌧️ 21°💧 0.4 mm
Tue🌧️ 19°💧 0.6 mm
Wed🌧️ 18°💧 3.1 mm
Thu🌤️ 19°💧 0.6 mm
Fri🌧️ 19°💧 2.9 mm
Sat🌧️ 18°💧 1.3 mm
Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Monday 7 Sept in Roskilde, the forecast high is 21°C. Typical daytime temperatures at this time of year range from 16°C to 20°C, so it will be warmer than usual. It is warmer than 88% of similar days.

17°Ccooler than usual
usually 17°C–20°C
cooler than 72% of similar days
night: warmer than usual rain: typical rainfall wind: exceptionally strong
17°Cnear normal
usually 17°C–20°C
night: warmer than usual rain: typical rainfall wind: stronger than usual
21°Cwarmer than usual
usually 16°C–20°C
warmer than 88% of similar days
night: exceptionally warm rain: typical rainfall wind: lighter than usual
19°Cwarmer than usual
usually 16°C–20°C
warmer than 71% of similar days
night: near normal rain: typical rainfall wind: typical
18°Cnear normal
usually 16°C–20°C
night: near normal rain: more rain than usual wind: stronger than usual
19°Cnear normal
usually 16°C–20°C
night: near normal rain: typical rainfall wind: typical
19°Cwarmer than usual
usually 16°C–20°C
warmer than 73% of similar days
night: warmer than usual rain: more rain than usual wind: typical

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →
10°18°25° 1981: 19°C1982: 16°C1983: 17°C1984: 15°C1985: 15°C1986: 14°C1987: 17°C1988: 18°C1989: 18°C1990: 17°C1991: 16°C1992: 17°C1993: 15°C1994: 16°C1995: 19°C1996: 16°C1997: 18°C1998: 19°C1999: 22°C2000: 17°C2001: 16°C2002: 21°C2003: 19°C2004: 20°C2005: 22°C2006: 19°C2007: 17°C2008: 19°C2009: 19°C2010: 17°C2011: 18°C2012: 19°C2013: 20°C2014: 20°C2015: 16°C2016: 22°C2017: 17°C2018: 20°C2019: 17°C2020: 19°C2021: 21°C2022: 20°C2023: 23°C2024: 21°C2025: 21°C 2026 forecast: 19°C current forecast 19°C 198119902000201020202026
cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 18°C by day. The coolest year was 1986 (14°C) and the warmest was 2023 (23°C). The current forecast averages 19°C - close to the historical median.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

Weather warnings - Roskilde

No active weather warnings for Roskilde (region: København og Nordsjælland). The national weather service is not forecasting dangerous conditions.

14-day forecast - Roskilde

Roskilde - 14-day weather forecast infographic

Roskilde 30 & 45-day weather - long-range outlook

Next 16 days · forecast
20°
around 14° at night · days with rain: 8
Weeks 3-4 · avg for September
18°
around 11° at night · rain chance 56%
Weeks 5-7 · avg for October
13°
around 8° at night · rain chance 68%
The 30 & 45-day outlook for Roskilde: the next 16 days are a numerical forecast updated daily - on average 20° by day and 14° at night. Further out we rely on multi-year climate averages: around 18° in September, and about 13° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Roskilde

Saturday5 September 2026
🌧️17°light rain
sunrise 06:23 · sunset 19:56 · night 14° · evening 15° · rain 1.24 mm · humidity 61% · wind 10 m/s · clouds 93%
Sunday6 September 2026
☁️17°broken clouds
sunrise 06:25 · sunset 19:54 · night 14° · evening 17° · rain 1.17 mm · humidity 53% · wind 10 m/s · clouds 76%
Monday7 September 2026
🌧️21°light rain
sunrise 06:27 · sunset 19:51 · night 17° · evening 19° · rain 0.43 mm · humidity 45% · wind 6 m/s · clouds 96%
Tuesday8 September 2026
🌧️19°light rain
sunrise 06:29 · sunset 19:49 · night 12° · evening 15° · rain 0.61 mm · humidity 54% · wind 6 m/s · clouds 100%
Wednesday9 September 2026
🌧️18°light rain
sunrise 06:31 · sunset 19:46 · night 12° · evening 13° · rain 3.13 mm · humidity 58% · wind 9 m/s · clouds 100%
Thursday10 September 2026
🌤️19°a few clouds
sunrise 06:33 · sunset 19:43 · night 13° · evening 14° · rain 0.63 mm · humidity 49% · wind 9 m/s · clouds 16%
Friday11 September 2026
🌧️19°light rain
sunrise 06:35 · sunset 19:41 · night 13° · evening 15° · rain 2.85 mm · humidity 63% · wind 7 m/s · clouds 97%
Saturday12 September 2026
🌧️18°light rain
sunrise 06:37 · sunset 19:38 · night 13° · evening 13° · rain 1.29 mm · humidity 52% · wind 10 m/s · clouds 49%
Sunday13 September 2026
🌧️16°light rain
sunrise 06:39 · sunset 19:35 · night 12° · evening 13° · rain 4.5 mm · humidity 65% · wind 8 m/s · clouds 97%
Monday14 September 2026
☁️17°broken clouds
sunrise 06:41 · sunset 19:33 · night 12° · evening 13° · rain 1.62 mm · humidity 57% · wind 7 m/s · clouds 73%
Tuesday15 September 2026
☁️19°overcast clouds
sunrise 06:43 · sunset 19:30 · night 12° · evening 13° · rain 0.3 mm · humidity 52% · wind 5 m/s · clouds 97%
Wednesday16 September 2026
🌤️22°scattered clouds
sunrise 06:45 · sunset 19:28 · night 17° · evening 17° · rain 12.78 mm · humidity 41% · wind 3 m/s · clouds 30%
Thursday17 September 2026
🌧️21°light rain
sunrise 06:46 · sunset 19:25 · night 14° · evening 16° · rain 0.72 mm · humidity 59% · wind 7 m/s · clouds 90%
Friday18 September 2026
☀️22°clear sky
sunrise 06:48 · sunset 19:22 · night 17° · evening 18° · rain 0.63 mm · humidity 50% · wind 5 m/s · clouds 7%
Saturday19 September 2026
☀️24°clear sky
sunrise 06:50 · sunset 19:20 · night 18° · evening 18° · humidity 44% · wind 6 m/s · clouds 4%
Sunday20 September 2026
☀️23°clear sky
sunrise 06:52 · sunset 19:17 · night 16° · evening 16° · humidity 48% · wind 5 m/s · clouds 1%

UV index in Roskilde - is it safe to sunbathe?

UV INDEX · 16-DAY FORECASTRoskilde03681111+4.4UV MODERATEtoday, daily maxSeek shade around midday. SPF 30+, sunglasses and ahat for longer stays.Unprotected fair skin may burn in about 45 min4Sat5.095Sun6.094Mon7.093Tue8.094Wed9.093Thu10.093Fri11.094Sat12.092Sun13.094Mon14.091Tue15.092Wed16.093Thu17.094Fri18.093Sat19.090Sun20.090-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-09-05
Today the UV index in Roskilde is 4 (moderate) - unprotected fair skin can burn in about 45 minutes. Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.

Pollen in Roskilde - info for allergy sufferers

PLANT POLLEN · 4-DAY FORECASTRoskildeHighest pollen today: Ragweed2 grains/m³ · low leveltoday5.09tomorrow6.09Mon7.09Tue8.09Grasses-22-Ragweed225-nonelowmoderatehighvery highoff season: alder, birch, mugwort, olive · values in grains/m³ (daily peak)pogodapodroze.pl · 2026-09-05
Today ragweed pollen is highest in Roskilde - about 2 grains/m³, low level. Most allergy sufferers should not feel strong symptoms. Pollen levels are a CAMS model forecast and are indicative.

Sea temperature - Roskilde

Water today
18°C
Week avg
18°C
How's the water?
cold
16-day sea temperature forecast:
5.09 18°C6.09 18°C7.09 18°C8.09 18°C9.09 18°C10.09 18°C11.09 17°C12.09 17°C13.09 17°C
Average sea temperature through the year:
Jan 2°CFeb 1°CMar 4°CApr 9°CMay 15°CJun 20°CJul 21°CAug 20°CSep 19°COct 12°CNov 7°CDec 3°C
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Roskilde weather through the year

Roskilde - annual climate

Warmest, driest months on average: May, June, July, August.

Upcoming public holidays in Denmark: Christmas Day — 25 December · St. Stephen's Day — 26 December · New Year's Day — 1 January.

Nearby and related places

CopenhagenSilkeborgRandersVejleOdenseViborgHorsens

FAQ - Roskilde weather

What is the weather like in Roskilde today?
Today it is about 17° during the day and 14° at night, light rain.
How far ahead can I check the forecast for Roskilde?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.