30-day forecast · Sandviken
Days 1-14 are a real forecast from global weather models. Days 15-30 are season-typical values based on SMHI climate normals 1991-2020 — good for planning, NOT an exact forecast that far ahead.
30 days — Sandviken 14 real + 16 synthesised
Scroll sideways · tap a day for details
Day by day — Sandviken 30 days
Thu · Today
Cloudy
+18°
+8°
0.2 mm
⌄
Wind 4 m/s SW
Gusts 11 m/s
UV index 2 – Low
Chance of rain 21%
Sunrise 06:25
Sunset 19:09
Fri · Tomorrow
Showers
+15°
+11°
2.9 mm
⌄
Wind 6 m/s SW
Gusts 12 m/s
UV index 2 – Low
Chance of rain 78%
Sunrise 06:27
Sunset 19:06
Saturday 19/9
Cloudy
+16°
+9°
1.2 mm
⌄
Wind 7 m/s SW
Gusts 15 m/s
UV index 2 – Low
Chance of rain 60%
Sunrise 06:30
Sunset 19:03
Sunday 20/9
Clear
+16°
+9°
11%
⌄
Wind 5 m/s SW
Gusts 14 m/s
UV index 2 – Low
Chance of rain 11%
Sunrise 06:32
Sunset 19:00
Monday 21/9
Clear
+15°
+9°
17%
⌄
Wind 6 m/s NW
Gusts 13 m/s
UV index 4 – Moderate
Chance of rain 17%
Sunrise 06:35
Sunset 18:56
Tuesday 22/9
Clear
+16°
+9°
8%
⌄
Wind 4 m/s NW
Gusts 11 m/s
UV index 4 – Moderate
Chance of rain 8%
Sunrise 06:37
Sunset 18:53
Wednesday 23/9
Cloudy
+15°
+8°
16.2 mm
⌄
Wind 5 m/s N
Gusts 12 m/s
UV index 4 – Moderate
Chance of rain 83%
Sunrise 06:39
Sunset 18:50
Thursday 24/9
Clear
+13°
+7°
0.6 mm
⌄
Wind 6 m/s N
Gusts 14 m/s
UV index 4 – Moderate
Chance of rain 36%
Sunrise 06:42
Sunset 18:47
Friday 25/9
Cloudy
+13°
+7°
11%
⌄
Wind 5 m/s N
Gusts 13 m/s
UV index 3 – Moderate
Chance of rain 11%
Sunrise 06:44
Sunset 18:44
Saturday 26/9
Clear
+14°
+5°
6%
⌄
Wind 2 m/s NW
Gusts 5 m/s
UV index 4 – Moderate
Chance of rain 6%
Sunrise 06:47
Sunset 18:41
Sunday 27/9
Clear
+17°
+7°
7%
⌄
Wind 2 m/s SW
Gusts 6 m/s
UV index 5 – Moderate
Chance of rain 7%
Sunrise 06:49
Sunset 18:38
Monday 28/9
Clear
+17°
+8°
9%
⌄
Wind 3 m/s NE
Gusts 11 m/s
UV index 5 – Moderate
Chance of rain 9%
Sunrise 06:52
Sunset 18:35
Tuesday 29/9
Fog
+14°
+7°
21%
⌄
Wind 3 m/s NE
Gusts 10 m/s
UV index 4 – Moderate
Chance of rain 21%
Sunrise 06:54
Sunset 18:32
Wednesday 30/9
Showers
+11°
+5°
0.4 mm
⌄
Wind 5 m/s NE
Gusts 9 m/s
UV index 4 – Moderate
Chance of rain 42%
Sunrise 06:56
Sunset 18:28
Thursday 1/10
Rain (climate normal)
+10°
+3°
5.2 mm
⌄
Daytime ≈7–13°
At night ≈0–6°
Rain 5.2 mm
(climate normal) Typical range for the season · 1991–2020
Friday 2/10
Partly cloudy (climate normal)
+13°
+5°
20%
⌄
Daytime ≈10–16°
At night ≈2–8°
Rain 20%
(climate normal) Typical range for the season · 1991–2020
Saturday 3/10
Partly cloudy (climate normal)
+12°
+4°
20%
⌄
Daytime ≈9–15°
At night ≈1–7°
Rain 20%
(climate normal) Typical range for the season · 1991–2020
Sunday 4/10
Rain (climate normal)
+11°
+3°
2.5 mm
⌄
Daytime ≈8–14°
At night ≈0–6°
Rain 2.5 mm
(climate normal) Typical range for the season · 1991–2020
Monday 5/10
Partly cloudy (climate normal)
+8°
+2°
20%
⌄
Daytime ≈5–11°
At night ≈-1–5°
Rain 20%
(climate normal) Typical range for the season · 1991–2020
Tuesday 6/10
Partly cloudy (climate normal)
+7°
+1°
20%
⌄
Daytime ≈4–10°
At night ≈-2–4°
Rain 20%
(climate normal) Typical range for the season · 1991–2020
Wednesday 7/10
Rain (climate normal)
+7°
+1°
6.3 mm
⌄
Daytime ≈4–10°
At night ≈-2–4°
Rain 6.3 mm
(climate normal) Typical range for the season · 1991–2020
Thursday 8/10
Partly cloudy (climate normal)
+8°
+2°
20%
⌄
Daytime ≈5–11°
At night ≈-1–5°
Rain 20%
(climate normal) Typical range for the season · 1991–2020
Friday 9/10
Partly cloudy (climate normal)
+11°
+3°
20%
⌄
Daytime ≈8–14°
At night ≈0–6°
Rain 20%
(climate normal) Typical range for the season · 1991–2020
Saturday 10/10
Rain (climate normal)
+12°
+4°
3.5 mm
⌄
Daytime ≈9–15°
At night ≈1–7°
Rain 3.5 mm
(climate normal) Typical range for the season · 1991–2020
Sunday 11/10
Partly cloudy (climate normal)
+12°
+4°
20%
⌄
Daytime ≈9–15°
At night ≈1–7°
Rain 20%
(climate normal) Typical range for the season · 1991–2020
Monday 12/10
Partly cloudy (climate normal)
+8°
+2°
20%
⌄
Daytime ≈5–11°
At night ≈-2–5°
Rain 20%
(climate normal) Typical range for the season · 1991–2020
Tuesday 13/10
Rain (climate normal)
+8°
+2°
4.8 mm
⌄
Daytime ≈5–11°
At night ≈-1–5°
Rain 4.8 mm
(climate normal) Typical range for the season · 1991–2020
Wednesday 14/10
Partly cloudy (climate normal)
+8°
+2°
20%
⌄
Daytime ≈5–11°
At night ≈-1–5°
Rain 20%
(climate normal) Typical range for the season · 1991–2020
Thursday 15/10
Partly cloudy (climate normal)
+8°
+2°
20%
⌄
Daytime ≈5–11°
At night ≈-1–5°
Rain 20%
(climate normal) Typical range for the season · 1991–2020
Friday 16/10
Rain (climate normal)
+11°
+4°
6.3 mm
⌄
Daytime ≈8–14°
At night ≈1–7°
Rain 6.3 mm
(climate normal) Typical range for the season · 1991–2020
🗺️ Map — Sandviken and around
Forecast day by day
📅 Forecast
🌧️ Radar now
▶
Markers show the daily high for Sandviken and the places around it — all from our warm cache, the map makes no calls of its own. Radar mode fetches frames from RainViewer.
How does the long-range forecast work?
Days 1-14: Fetched live from global weather models (ECMWF, GFS) with statistical correction. Reliability ~85% for days 1-3, ~60% for days 7-10, ~45% for days 11-14.
Days 15-30: A real forecast does not exist that far ahead (a chaotic system). Instead we show season-typical values: the month’s average Tmax/Tmin from SMHI climate normals 1991-2020 (Stockholm baseline with latitude correction for Sandviken), with mild weekly variation.
Use: "Roughly how warm is it usually in Stockholm in the last week of July?" — a good question for days 15-30. "Will it rain on 27 May?" — no serious forecast can say.