Tønsberg weather in May

In May, Tønsberg sees average daytime highs of 14°C and overnight lows near 8°C, with 66 mm of precipitation across 9.5 wet days and about 16.6 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 12°C in the first days to 16°C by the end. The sky is clear or mostly clear about 33% of the time in May, and the air most often feels dry.

Daylight stretches from about 15 h 24 min at the start of May to 17 h 36 min by month's end. Set against the rest of the year, May is Tønsberg's 1st-clearest and 9th-windiest month. For the whole year in context, see Tønsberg's year-round climate.

Daytime high
14°
5th warmest
Overnight low
8th coldest
Precipitation
66 mm
9.5 wet days
Daylight
16 h 36 min
3:56 AM – 8:34 PM
Cloud cover
56%
1st clearest
Wind
14 km/h
9th windiest
Solar energy
5.34 kWh/m²
Travel score
4.2
out of 10

Tønsberg is city in Vestfold county, Norway.

Air quality
Good
PM2.5 6.9 µg/m³ · 2019
Density
5,362/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 12°C in the first days to 16°C by the end.

A typical May day in Tønsberg reaches about 14°C in the afternoon and slips back to 8°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 19°C. Set against its neighbours, May runs about 5°C warmer than April and about 4°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1126
2126
3126
4126
5127
6127
7137
8137
9137
10137
11137
12138
13138
14148
15148
16148
17148
18149
19149
20159
21159
22159
23159
241510
251510
261610
271610
281610
291610
301611
311611

How May really feels in Tønsberg

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Tønsberg weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°8212.57.86.60.0
Feb / -2°588.76.38.70.0
Mar / 568.64.511.30.2
Apr / 528.21.214.11.9
May14° / 669.50.216.64.2
Jun18° / 12°8210.4018.15.7
Jul20° / 15°8210.3017.56.3
Aug19° / 15°9112.4015.35.9
Sep16° / 11°10711.4012.64.6
Oct10° / 12012.90.79.82.2
Nov / 1151437.30.4
Dec / -1°8612.95.55.90.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in May, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 18% of May, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24951
34951
45050
55149
65149
75248
85248
95248
105248
115248
125149
135149
145149
155050
165050
175050
185050
195050
204951
214951
225050
235050
245050
255149
265248
275248
285347
295347
305347
315347

Chance of precipitation in May

Any precipitationSnow

Tønsberg gets around 66 mm of rain and snow over 9.5 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 31% and peaks near 33% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1302
2302
3301
4301
5301
6291
7291
8291
9291
10291
11291
12291
13301
14301
15310
16310
17310
18320
19320
20320
21320
22330
23330
24330
25330
26330
27330
28320
29320
30320
31320

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the dry band about 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
14991
15991
16991
17991
18991
19982
20982
21982
22982
23982
24973
25973
26973
27964
28964
29964
30964
31955

Wind in May

Winds average 14 km/h in May.

Across May, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 15 h 24 min at the start of May to 17 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 132 minutes over May. Sunrise moves from 4:32 AM to 3:28 AM, and sunset from 7:59 PM to 9:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.44:327:59
215.54:308:01
315.64:278:03
415.74:258:06
515.84:228:08
615.94:198:11
715.94:178:13
816.04:148:15
916.14:128:18
1016.24:098:20
1116.34:078:22
1216.34:058:25
1316.44:028:27
1416.54:008:29
1516.63:588:31
1616.63:568:34
1716.73:538:36
1816.83:518:38
1916.93:498:40
2016.93:478:42
2117.03:458:44
2217.13:438:47
2317.13:418:49
2417.23:398:51
2517.33:378:53
2617.33:368:55
2717.43:348:57
2817.43:328:58
2917.53:319:00
3017.53:299:02
3117.63:289:04

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.34 kWh/m².

For context, solar energy here swings from a low near 0.23 kWh/m² to a high of 5.75 kWh/m² in June across the year — May's 5.34 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.8Bright
34.8Bright
44.9Bright
54.9Bright
65.0Bright
75.0Bright
85.1Bright
95.1Bright
105.2Bright
115.2Bright
125.2Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.4Bright
185.4Bright
195.4Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.6Bright
255.6Bright
265.6Bright
275.7Bright
285.7Bright
295.7Bright
305.8Bright
315.8Bright
Planning a trip in May

Is May a good time to visit Tønsberg?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.2
Sightseeing
5th-best month of the year
0.2
Beach & pool
5th-best month of the year

May is a reasonable time to visit Tønsberg for sightseeing.

What to pack for Tønsberg in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, Tønsberg sees daytime highs around 14°C and nights near 8°C. Worth packing: a warm layer, rain gear and sun protection. About 10 days see rain.

a warm layerrain gearsun protection

Sea temperature near Tønsberg in May

The nearest coast averages about 11°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 16 km away) is warmest in August at about 18°C and coldest in February near 3°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

0°5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan4Bracing
Feb3Bracing
Mar3Bracing
Apr6Bracing
May11Bracing
Jun15Bracing
Jul18Cool
Aug18Cool
Sep15Cool
Oct12Bracing
Nov9Bracing
Dec6Bracing

UV index in Tønsberg in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tønsberg peaks around July 17 at about 5 (moderate) — a little sun protection helps at midday. It bottoms out near January 1 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 4 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateLowJul 17UV 5Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May4Moderate
Jun5Moderate
Jul5Moderate
Aug5Moderate
Sep3Moderate
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Tønsberg?

Tønsberg sits at 59.3°N, 10.4°E, 16 m above sea level, in Norway. The nearest listed city is Horten, 17 km away.

Topography around Tønsberg

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tønsberg.

Within 3 km, the terrain around Tønsberg has only modest variations in elevation — a maximum elevation change of 101 m around an average of 22 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 222 m; within 80 km, large variations in elevation — a maximum elevation change of 907 m.

The land around Tønsberg is covered by trees (32%) and artificial surfaces (20%) within 3 km, water (38%) and trees (33%) within 16 km, and trees (58%) and water (30%) within 80 km.

3 km
101 m
16 km
222 m
80 km
907 m
treesgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Horten 17 km · Sandefjord 19 km · Moss 23 km · Fredrikstad 30 km · Larvik 32 km · Sarpsborg 40 km · Porsgrunn 45 km · Skien 46 km

Norway travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 91% of US
price level, 2025
GDP per capita
$94,594
2025
Happiness
7.2 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
2.1
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 613
Religion
Church of Norway 68%other Christian 4%Muslim 3%Roman Catholic 3%

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 Tønsberg (59.2675°, 10.4076°, elevation 16 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).