Sundsvall in Spring
In spring (March, April and May), Sundsvall sees average daytime highs around 8°C and overnight lows near -1°C, with 116 mm of precipitation over about 25 wet days across the season. It is the 3rd-warmest season and the driest season of the year.
Over the season highs climb from about -0°C in early March to 15°C by late May. The sky is clear or mostly clear about 23% of the time across spring, and the air most often feels dry.
Spring is Sundsvall's 3rd-best season to visit on our travel score. For the whole year in context, see Sundsvall's year-round climate.
- Avg daytime high
- 8°C
- 3rd-warmest season
- Avg overnight low
- -1°C
- Precipitation
- 116 mm
- 25 wet days
- Avg wind
- 11 km/h
- Travel score
- 1.6
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Sundsvall in Spring
Over the season highs climb from about -0°C in early March to 15°C by late May.
A typical spring day in Sundsvall reaches about 8°C and drops to -1°C overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Sundsvall
Once humidity and wind are folded in, spring brings about 0 days that feel above 32°C and 75 that feel at or below 0°C.
The story in spring is cold — wind chill drags the overnight "feels like" below the raw low.
Sundsvall weather by month
How the three spring months (March, April and May) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | -3° / -9° | 48 | 9.8 | 9.6 | 5.6 | 0.0 |
| Feb | -2° / -9° | 34 | 7.8 | 8.4 | 8.3 | 0.0 |
| Mar | 2° / -6° | 35 | 7.3 | 7 | 11.3 | 0.0 |
| Apr | 8° / -1° | 37 | 7.9 | 4.3 | 14.4 | 1.2 |
| May | 13° / 3° | 44 | 9.8 | 0.6 | 17.3 | 3.6 |
| Jun | 17° / 8° | 58 | 10.6 | 0 | 19.2 | 5.4 |
| Jul | 20° / 11° | 73 | 12.1 | 0 | 18.5 | 5.9 |
| Aug | 19° / 10° | 75 | 11.7 | 0 | 15.7 | 5.7 |
| Sep | 14° / 6° | 55 | 9.6 | 0 | 12.6 | 4.0 |
| Oct | 7° / 1° | 63 | 10.2 | 1.9 | 9.5 | 1.0 |
| Nov | 2° / -3° | 53 | 10.6 | 6.5 | 6.6 | 0.0 |
| Dec | -1° / -7° | 50 | 10.5 | 8.9 | 4.7 | 0.0 |
Cloud cover in Spring
The sky is clear or mostly clear about 23% of the time across spring.
Chance of precipitation in Spring
Sundsvall gets around 116 mm of rain and snow over 25 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 11 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 9 h 42 min in early March to 18 h 36 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 3.7 kWh/m².
Is spring a good time to visit Sundsvall?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a weaker month for outdoor sightseeing in Sundsvall.
What to pack for Sundsvall in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Sundsvall sees daytime highs around 8°C and nights near -1°C. Pack a warm layer and a heavy coat. Worth having: rain gear and sun protection. About 25 days see rain.
Sea temperature near Sundsvall in Spring
The nearest coast averages about 3°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 17 km away) is warmest in August at about 16°C and coldest in February near 1°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 2 | 1 | 1 | 2 | 6 | 10 | 15 | 16 | 13 | 9 | 5 | 3 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Bracing | Bracing | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 2 | Bracing |
| Feb | 1 | Bracing |
| Mar | 1 | Bracing |
| Apr | 2 | Bracing |
| May | 6 | Bracing |
| Jun | 10 | Bracing |
| Jul | 15 | Cool |
| Aug | 16 | Cool |
| Sep | 13 | Bracing |
| Oct | 9 | Bracing |
| Nov | 5 | Bracing |
| Dec | 3 | Bracing |
UV index in Sundsvall in Spring
Clear-sky midday UV across spring averages around 3. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Sundsvall peaks around June 18 at about 4 (moderate) — a little sun protection helps at midday. It bottoms out near December 17 at about 0 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 4 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 0 | 1 | 1 | 2 | 4 | 5 | 4 | 4 | 2 | 1 | 0 | 0 |
| Level | Low | Low | Low | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Low | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 0 | Low |
| Feb | 1 | Low |
| Mar | 1 | Low |
| Apr | 2 | Moderate |
| May | 4 | Moderate |
| Jun | 5 | Moderate |
| Jul | 4 | Moderate |
| Aug | 4 | Moderate |
| Sep | 2 | Moderate |
| Oct | 1 | Low |
| Nov | 0 | Low |
| Dec | 0 | Low |
Where is Sundsvall?
Sundsvall sits at 62.4°N, 17.3°E, 26 m above sea level, in Sweden. The nearest listed city is Härnösand, 42 km away.
Topography around Sundsvall
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sundsvall.
Within 3 km, the terrain around Sundsvall has only modest variations in elevation — a maximum elevation change of 241 m around an average of 70 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 343 m; within 80 km, significant variations in elevation — a maximum elevation change of 549 m.
The land around Sundsvall is covered by trees (54%) and artificial surfaces (29%) within 3 km, trees (61%) and water (23%) within 16 km, and trees (66%) and water (28%) within 80 km.
Sweden travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 87% of US
- price level, 2025
- GDP per capita
- $63,133
- 2025
- Happiness
- 7.3 / 10
- World Happiness, 2025
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 1.1
- per 100k, 2023
- Road deaths
- 3.1
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Very high
- EF EPI 609
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Sundsvall (62.3913°, 17.3063°, elevation 26 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.