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Weather in Sarpsborg - 14-day forecast

Detailed weather forecast for Sarpsborg, Norway: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Sarpsborg
today🌤️ 21°💧 0.4 mm
Thu☁️ 22°💧 0.2 mm
Fri🌤️ 28°💧 11.3 mm
Sat🌧️ 24°💧 1.7 mm
Sun🌧️ 25°💧 2.9 mm
Mon☀️ 27°💧 3.3 mm
Tue☀️ 30°💧 0.1 mm
Wed☁️ 30°💧 8.5 mm

⚠️ Weather warnings - Sarpsborg

✅ No active weather warnings for Sarpsborg (region: Østfold). The national weather service is not forecasting dangerous conditions.

14-day forecast - Sarpsborg

WEATHER FORECAST · 15 DAYSSarpsborgNorway · 16-day forecast21°🌤️Todaynight 19° · wind 4 m/s · humidity 28%🌅 04:13 🌇 22:27 · daylight 18 h 13 min21°22°14°28°16°24°17°25°16°27°17°30°19°30°19°28°17°22°15°19°14°22°14°19°11°15°20°14°RAIN (MM)0.40.211.31.72.93.30.18.50.78.7125.42.10.23.9Wed8.07Thu9.07Fri10.07Sat11.07Sun12.07Mon13.07Tue14.07Wed15.07Thu16.07Fri17.07Sat18.07Sun19.07Mon20.07Tue21.07Wed22.07AVERAGE24°MAX.30° (15.07)MIN.15° (21.07)TOTAL RAIN61.4 mmSUNNY DAYS6world-prices.com · updated 2026-07-08

📅 Sarpsborg 30 & 45-day weather - long-range outlook

Next 16 days · forecast
23°
around 16° at night · days with rain: 11
Weeks 3-4 · avg for July
23°
around 13° at night · rain chance 45%
Weeks 5-7 · avg for August
20°
around 12° at night · rain chance 54%
The 30 & 45-day outlook for Sarpsborg: the next 16 days are a numerical forecast updated daily - on average 23° by day and 16° at night. Further out we rely on multi-year climate averages: around 23° in July, and about 20° in August. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Sarpsborg

Wednesday8 July 2026
🌤️21°a few clouds
sunrise 04:13 · sunset 22:27 · night 19° · evening 22° · rain 0.39 mm · humidity 28% · wind 4 m/s · clouds 22%
Thursday9 July 2026
☁️22°overcast clouds
sunrise 04:15 · sunset 22:26 · night 14° · evening 21° · rain 0.24 mm · humidity 35% · wind 4 m/s · clouds 96%
Friday10 July 2026
🌤️28°scattered clouds
sunrise 04:16 · sunset 22:24 · night 16° · evening 25° · rain 11.31 mm · humidity 29% · wind 4 m/s · clouds 42%
Saturday11 July 2026
🌧️24°light rain
sunrise 04:18 · sunset 22:23 · night 17° · evening 21° · rain 1.68 mm · humidity 44% · wind 5 m/s · clouds 61%
Sunday12 July 2026
🌧️25°light rain
sunrise 04:20 · sunset 22:22 · night 16° · evening 23° · rain 2.88 mm · humidity 26% · wind 4 m/s · clouds 1%
Monday13 July 2026
☀️27°clear sky
sunrise 04:21 · sunset 22:20 · night 17° · evening 23° · rain 3.3 mm · humidity 26% · wind 3 m/s · clouds 96%
Tuesday14 July 2026
☀️30°clear sky
sunrise 04:23 · sunset 22:19 · night 19° · evening 25° · rain 0.12 mm · humidity 24% · wind 3 m/s · clouds 92%
Wednesday15 July 2026
☁️30°overcast clouds
sunrise 04:25 · sunset 22:17 · night 19° · evening 22° · rain 8.54 mm · humidity 27% · wind 3 m/s · clouds 92%
Thursday16 July 2026
☀️28°clear sky
sunrise 04:27 · sunset 22:15 · night 17° · evening 21° · rain 0.69 mm · humidity 33% · wind 3 m/s · clouds 15%
Friday17 July 2026
🌧️22°moderate rain
sunrise 04:29 · sunset 22:14 · night 15° · evening 16° · rain 8.67 mm · humidity 51% · wind 4 m/s · clouds 100%
Saturday18 July 2026
🌧️19°moderate rain
sunrise 04:30 · sunset 22:12 · night 14° · evening 13° · rain 12.03 mm · humidity 56% · wind 11 m/s · clouds 40%
Sunday19 July 2026
☀️22°clear sky
sunrise 04:32 · sunset 22:10 · night 14° · evening 20° · rain 5.4 mm · humidity 32% · wind 6 m/s · clouds 9%
Monday20 July 2026
☀️19°clear sky
sunrise 04:34 · sunset 22:08 · night 11° · evening 15° · rain 2.07 mm · humidity 47% · wind 4 m/s · clouds 2%
Tuesday21 July 2026
🌧️15°light rain
sunrise 04:36 · sunset 22:06 · night 12° · evening 14° · rain 0.15 mm · humidity 79% · wind 3 m/s · clouds 100%
Wednesday22 July 2026
🌧️20°light rain
sunrise 04:38 · sunset 22:04 · night 14° · evening 19° · rain 3.93 mm · humidity 68% · wind 4 m/s · clouds 100%
Thursday23 July 2026
🌧️21°light rain
sunrise 04:41 · sunset 22:02 · night 19° · evening 19° · rain 1.2 mm · humidity 62% · wind 4 m/s · clouds 72%

☀️ UV index in Sarpsborg - is it safe to sunbathe?

☀️ UV INDEX · 16-DAY FORECASTSarpsborg03681111+5.9UV MODERATEtoday, daily maxSeek shade around midday. SPF 30+, sunglasses and ahat for longer stays.⏱ Unprotected fair skin may burn in about 35 min6Wed8.076Thu9.075Fri10.075Sat11.074Sun12.075Mon13.076Tue14.075Wed15.076Thu16.076Fri17.076Sat18.076Sun19.076Mon20.076Tue21.075Wed22.075Thu23.070-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-07-08
Today the UV index in Sarpsborg is 6 (moderate) - unprotected fair skin can burn in about 35 minutes. Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.

🌿 Pollen in Sarpsborg - info for allergy sufferers

🌿 PLANT POLLEN · 4-DAY FORECASTSarpsborgHighest pollen today: 🌾 Grasses71 grains/m³ · high leveltoday8.07tomorrow9.07Fri10.07Sat11.07🌾Grasses71504926nonelowmoderatehighvery highoff season: alder, birch, mugwort, olive, ragweed · values in grains/m³ (daily peak)pogodapodroze.pl · 2026-07-08
Today grasses pollen is highest in Sarpsborg - about 71 grains/m³, high level. Allergy sufferers should limit time outdoors on dry, windy days and take medication as advised. Pollen levels are a CAMS model forecast and are indicative.

🌊 Sea temperature - Sarpsborg

Water today
20°C
Week avg
21°C
Waves today
0.2 m
How's the water?
brisk
16-day sea temperature forecast:
8.07 20°C9.07 20°C10.07 21°C11.07 21°C12.07 21°C13.07 21°C14.07 22°C15.07 22°C16.07 21°C
Average sea temperature through the year:
Jan 3°CFeb 2°CMar 4°CApr 8°CMay 14°CJun 18°CJul 20°CAug 19°CSep 17°COct 12°CNov 8°CDec 4°C
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Air quality and smog in Sarpsborg

CityPM2.5 (µg/m³)PM10 (µg/m³)Air quality
Trondheim4.912.1very good
Oslo3.14very good
Bergen2.86very good
Stavanger2.56.6very good
Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-07-08, 03:00).

Sarpsborg weather through the year

WEATHER THROUGH THE YEARSarpsborg0°-5°1°-4°5°-3°10°1°16°7°20°11°23°13°20°12°17°9°11°5°5°0°4°-2°CHANCE OF RAIN (%)395042444946455448536052JanFebMarAprMayJunJulAugSepOctNovDecWARMESTJul (23°)COLDESTJan (0°)DRIESTJan (39%)WETTESTNov (60%)world-prices.com · 2026-07-08 · ★ best months

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

🎉 Public holidays in Sarpsborg - when are the long weekends?

Next long weekend in Sarpsborg: Christmas Day (25 December, Friday) - Friday–Sunday (3 days off).
25 DecemberFriday
Christmas Day
🎈 long weekend
26 DecemberSaturday
St. Stephen's Day
falls on a weekend
1 JanuaryFriday 2027
New Year's Day
🎈 long weekend
25 MarchThursday 2027
Maundy Thursday
🎈 long weekend + bridge day
26 MarchFriday 2027
Good Friday
🎈 long weekend
28 MarchSunday 2027
Easter Sunday
falls on a weekend
29 MarchMonday 2027
Easter Monday
🎈 long weekend
1 MaySaturday 2027
Labour Day
falls on a weekend
6 MayThursday 2027
Ascension Day
🎈 long weekend + bridge day
16 MaySunday 2027
Pentecost
falls on a weekend
17 MayMonday 2027
Constitution Day
🎈 long weekend
25 DecemberSaturday 2027
Christmas Day
falls on a weekend
Public holidays (statutory days off) - shops, offices and some attractions may be closed. A "bridge day" is a workday between a holiday and the weekend worth taking as leave.

Nearby places

HaldenLarvikOsloSkien

FAQ - Sarpsborg weather

What is the weather like in Sarpsborg today?
Today it is about 21° during the day and 19° at night, a few clouds.
How far ahead can I check the forecast for Sarpsborg?
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.