AI-generatedTønsberg at a glance
- Best time
- Jul
- Warmest month
- Jul · 21°
- Warmest sea
- Aug · 18.3°
- Sunshine a year
- 1,920 h
- Rain a year
- 852 mm
- Climate
- Maritime
- Time zone
- UTC+1 / UTC+2
- Elevation
- 16 m
Climate in Tønsberg
Tønsberg has a maritime climate with moderate summers and cool, often grey winters. July is the warmest month with average highs of 21 °C, while January is the coolest at 2 °C. With around 1,920 hours of sunshine a year, Tønsberg is moderately sunny; June is the sunniest month with 8.9 hours a day.
Holiday weather through the year
Best time to visit Tønsberg
The best time to visit Tønsberg is in July. The sea stays too cool for a classic beach holiday: even in August it only reaches 18.3 °C. For sightseeing, day trips and hiking, conditions are most comfortable from May to July and in September. Rain is frequent in August; the wettest month is October with 89 mm.
Tønsberg through the seasons
How the weather changes over the seasons, with averages for each.
Tønsberg in spring
Mar – May
Poor
- 5–16 °C by day
- Sea 7 °C
- 6.9 h of sun a day
- 28 rainy days in all
Tønsberg in summer
Jun – Aug
Poor
- 19–21 °C by day
- Sea 17 °C
- 8.5 h of sun a day
- 35 rainy days in all
Tønsberg in autumn
Sep – Nov
Poor
- 6–17 °C by day
- Sea 12 °C
- 3.6 h of sun a day
- 34 rainy days in all
Tønsberg in winter
Dec – Feb
Poor
- 2–3 °C by day
- Sea 4 °C
- 2.0 h of sun a day
- 31 rainy days in all
Which month for what?
Beach & swimming
No month
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
May – Jul, Sep
15–28 °C and not too much rain
Rainy months
Aug
Rainy season or more than 12 rainy days
Snow
Nov – Mar
Snow on 2 or more days
Find your perfect month
Tell us what you like and we rate every month in Tønsberg for you.
Your best months: July – August
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Poor
Best time to visit: July
Where to go in OctoberSea temperature in October
A typical day in October
- Morning, 08:00: about 6°
- Midday, 13:00: about 10°
- Afternoon, 16:00: about 11°
- Evening, 20:00: about 8°
- Night, 23:00: about 7°
07:5318:14
Cold evenings: bring a warm jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 07:28–08:51 · evening 17:17–18:40
- Blue hour
- Morning 07:12–07:28 · evening 18:40–18:56
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
October in Tønsberg compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 13° at the start of the month to 8° at the end. The sea cools from 14° to 11°. The days get 2.6 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 13° | 8° |
| Night-time low | 8° | 4° |
| Sea | 14° | 11° |
| Daylight | 11.6 h | 9.0 h |
What is the weather like in Tønsberg in October?
In October, Tønsberg is cool: daytime highs average 11 °C, and nights cool down to about 6 °C. The sea averages 12.1 °C – swimming is only for the hardy. The sun is scarce, with only about 3.5 hours a day. Rain is frequent, with about 12 rainy days and 89 mm in total. All in all, October is not an ideal month for a holiday in Tønsberg.
More details for October
- Daylight
- 10 h 21 min07:53 – 18:14
- UV index
- 1 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 70 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+2offset from UTC
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %8 %
- Few rainy daysweight 20 %45 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- A jumper for the evenings
- Rain jacket or umbrella
Compare two months in Tønsberg
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
July has the better holiday weather in Tønsberg: score 46 against 11. In July, days are 10 °C warmer than in October. The sea is 6 °C warmer in July. The sun shines 5 hours longer a day in July.
| Month | October | July |
|---|---|---|
| Holiday weather score | 11 | 46better |
| Daytime high | 11° | 21° |
| Night-time low | 6° | 14° |
| Sea | 12.1° | 17.9° |
| Sunshine | 3.5 h | 8.8 hbetter |
| Rainy days | 12 | 12 |
| Rainfall | 89 mm | 87 mm |
Based on the climate averages 1996–2025.
Tønsberg month by month
The typical weather for every month at a glance.
11January2° · Sea 4° · 1.8 h
In January, Tønsberg is bitterly cold: daytime highs average 2 °C, and nights often drop below freezing (−3 °C). The sea averages 4.2 °C – swimming is only for the hardy. The sun is scarce, with only about 1.8 hours a day. Precipitation falls on about 11 days, totalling 70 mm; on about 6 of them it snows. All in all, January is not an ideal month for a holiday in Tønsberg.
Tønsberg in January13February2° · Sea 3° · 2.8 h
In February, Tønsberg is bitterly cold: daytime highs average 2 °C, and nights often drop below freezing (−3 °C). The sea averages 3.0 °C – swimming is only for the hardy. The sun is scarce, with only about 2.8 hours a day. Precipitation falls on about 9 days, totalling 54 mm; on about 6 of them it snows. All in all, February is not an ideal month for a holiday in Tønsberg.
Tønsberg in February22March5° · Sea 3° · 5.2 h
In March, Tønsberg is cold: daytime highs average 5 °C, and nights often drop below freezing (−1 °C). The sea averages 3.4 °C – swimming is only for the hardy. Expect around 5.2 hours of sunshine a day. Rain falls on about 8 days, adding up to 47 mm. Snow falls on about 4 days. All in all, March is not an ideal month for a holiday in Tønsberg.
Tønsberg in March26April10° · Sea 6° · 6.8 h
In April, Tønsberg is cool: daytime highs average 10 °C, and nights cool down to about 3 °C. The sea averages 6.4 °C – swimming is only for the hardy. The sun shines for around 6.8 hours a day. Rain falls on about 9 days, adding up to 48 mm. All in all, April is not an ideal month for a holiday in Tønsberg.
Tønsberg in April29May16° · Sea 11° · 8.7 h
In May, Tønsberg is cool: daytime highs average 16 °C, and nights cool down to about 8 °C. The sea averages 10.9 °C – swimming is only for the hardy. The sun shines for around 8.7 hours a day. Rain is frequent, with about 11 rainy days and 67 mm in total. All in all, May is not an ideal month for a holiday in Tønsberg.
Tønsberg in May31June19° · Sea 15° · 8.9 h
In June, Tønsberg is mild: daytime highs average 19 °C, and nights cool down to about 12 °C. The sea averages 15.1 °C – swimming is only for the hardy. The sun shines for around 8.9 hours a day. Rain is frequent, with about 11 rainy days and 77 mm in total. All in all, June is not an ideal month for a holiday in Tønsberg.
Tønsberg in June46July21° · Sea 18° · 8.8 h
In July, Tønsberg is warm: daytime highs average 21 °C, and nights cool down to about 14 °C. The sea averages 17.9 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 8.8 hours a day. Rain is frequent, with about 12 rainy days and 87 mm in total. All in all, July is a so-so month for a holiday in Tønsberg – and yet one of the best months here.
Tønsberg in July38August21° · Sea 18° · 7.7 h
In August, Tønsberg is mild: daytime highs average 21 °C, and nights cool down to about 14 °C. The sea averages 18.3 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 7.7 hours a day. Rain is frequent, with about 12 rainy days and 84 mm in total. All in all, August is not an ideal month for a holiday in Tønsberg.
Tønsberg in August20September17° · Sea 16° · 5.7 h
In September, Tønsberg is mild: daytime highs average 17 °C, and nights cool down to about 10 °C. The sea averages 15.8 °C – swimming is only for the hardy. Expect around 5.7 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 80 mm in total. All in all, September is not an ideal month for a holiday in Tønsberg.
Tønsberg in September11October11° · Sea 12° · 3.5 h
In October, Tønsberg is cool: daytime highs average 11 °C, and nights cool down to about 6 °C. The sea averages 12.1 °C – swimming is only for the hardy. The sun is scarce, with only about 3.5 hours a day. Rain is frequent, with about 12 rainy days and 89 mm in total. All in all, October is not an ideal month for a holiday in Tønsberg.
Tønsberg in October9November6° · Sea 9° · 1.7 h
In November, Tønsberg is cold: daytime highs average 6 °C, and nights cool down to about 2 °C. The sea averages 9.1 °C – swimming is only for the hardy. The sun is scarce, with only about 1.7 hours a day. Rain is frequent, with about 12 rainy days and 81 mm in total. Snow falls on about 2 days. All in all, November is not an ideal month for a holiday in Tønsberg.
Tønsberg in November9December3° · Sea 6° · 1.4 h
In December, Tønsberg is bitterly cold: daytime highs average 3 °C, and nights often drop below freezing (−2 °C). The sea averages 6.0 °C – swimming is only for the hardy. The sun is scarce, with only about 1.4 hours a day. Precipitation falls on about 12 days, totalling 68 mm; on about 5 of them it snows. All in all, December is not an ideal month for a holiday in Tønsberg.
Tønsberg in DecemberClimate in detail
Year & climate table
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Tønsberg
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Frost below 0°
- Cold 0–8°
- Cool 8–15°
ColdOctober: nights around 6°. The room should be heated.
The coolest nights are in January (−3°), the warmest in July (14°). Nights fall below 8 °C on average from October to April, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 11 | 2° | −3° | 4.2° | 1.8 h | 11 | 70 |
| FebruaryFeb | 13 | 2° | −3° | 3.0° | 2.8 h | 9 | 54 |
| MarchMar | 22 | 5° | −1° | 3.4° | 5.2 h | 8 | 47 |
| AprilApr | 26 | 10° | 3° | 6.4° | 6.8 h | 9 | 48 |
| MayMay | 29 | 16° | 8° | 10.9° | 8.7 h | 11 | 67 |
| JuneJun | 31 | 19° | 12° | 15.1° | 8.9 h | 11 | 77 |
| JulyJul | 46 | 21° | 14° | 17.9° | 8.8 h | 12 | 87 |
| AugustAug | 38 | 21° | 14° | 18.3° | 7.7 h | 12 | 84 |
| SeptemberSep | 20 | 17° | 10° | 15.8° | 5.7 h | 10 | 80 |
| OctoberOct | 11 | 11° | 6° | 12.1° | 3.5 h | 12 | 89 |
| NovemberNov | 9 | 6° | 2° | 9.1° | 1.7 h | 12 | 81 |
| DecemberDec | 9 | 3° | −2° | 6.0° | 1.4 h | 12 | 68 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
59.27° N, 10.41° E · 16 m · Europe/Oslo
Sea temperature
Sea temperature in Tønsberg
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 10.9 – 13.0 °C
Swimming season: Always below 20 °C
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Tønsberg ranges from 3.0 °C in February to 18.3 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
The sea warms up slowly: it is warmest in August, while the air already peaks in July. From October to February the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in August, eight out of ten years were between 17.3 and 19.3 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 4.2° | 2.0° | 5.7° | cold |
| FebruaryFeb | 3.0° | 1.2° | 4.7° | cold |
| MarchMar | 3.4° | 1.1° | 4.6° | cold |
| AprilApr | 6.4° | 4.7° | 7.5° | cold |
| MayMay | 10.9° | 10.0° | 12.6° | cold |
| JuneJun | 15.1° | 13.8° | 16.7° | cold |
| JulyJul | 17.9° | 16.4° | 19.5° | fresh |
| AugustAug | 18.3° | 17.3° | 19.3° | fresh |
| SeptemberSep | 15.8° | 14.7° | 16.6° | cold |
| OctoberOct | 12.1° | 10.9° | 13.0° | cold |
| NovemberNov | 9.1° | 8.0° | 10.4° | cold |
| DecemberDec | 6.0° | 4.2° | 7.7° | cold |
Sunshine
Sunshine hours in Tønsberg
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 3.5 of 10.4 hours of daylight in Tønsberg, 34 % of the daylight hours.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
Rain
Rain in Tønsberg: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Tønsberg has about 12 rainy days with 89 mm of rain in total.
UV index
UV index in Tønsberg
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 1 · lowLittle protection needed; sunglasses on bright days.
The sun is strongest in June (UV 6).
Minutes until sunburn in October
- Very fair skin
- over 2 h
- Fair skin
- over 2 h
- Light brown skin
- over 2 h
- Olive skin
- over 2 h
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Wind & clouds
Wind and clouds in Tønsberg
How breezy and how cloudy Tønsberg is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Tønsberg typically peaks at 16 km/h during the day: Beaufort 3, gentle breeze.
Breezy months for windsurfing and kiting
The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 70 % of the sky over Tønsberg: mostly cloudy, with about 3.5 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Snow
Snow in Tønsberg
When Tønsberg is likely to be white: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.
Snow calendar
- hardly any
- possible
- likely
- very likely
In October, it hardly ever snows in Tønsberg.
Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.
Planning a trip to Tønsberg
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Tønsberg in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Tønsberg has its best school-holiday weather during the summer holidays (score 41) and its weakest during the Christmas holidays (score 10).
- 25
Easter holidays
Mar – Apr
Poor
- 9 °C by day
- Sea 6 °C
- 6.3 h of sun a day
- 8 rainy days a month
Keep in mind: Snow
- 29
May half-term
May – Jun
Poor
- 16 °C by day
- Sea 12 °C
- 8.7 h of sun a day
- 11 rainy days a month
Good for: Sightseeing & walks
- 41
Summer holidays
Jul – Aug
FairBest holidays
- 21 °C by day
- Sea 18 °C
- 8.1 h of sun a day
- 12 rainy days a month
Keep in mind: Frequent rain
- 11
October half-term
Oct
Poor
- 11 °C by day
- Sea 12 °C
- 3.5 h of sun a day
- 12 rainy days a month
- 10
Christmas holidays
Dec – Jan
Poor
- 2 °C by day
- Sea 5 °C
- 1.6 h of sun a day
- 11 rainy days a month
Keep in mind: Snow
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 1 h 50 min
- Distance
- 1,100 km
- Time zone
- UTC+2
- Jet lag
- Hardly any (under 3 h)
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Good to know: Norway
- Currency
- Norwegian Krone (NOK)
- Languages
- Norwegian, Norwegian Bokmål, Norwegian Nynorsk
- Sockets
- Type C, F · 230 V
- Traffic
- Drives on the right
- Dialling code
- +47
- Emergency number
- 112
UK plugs need a travel adapter
Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.
Compare & alternatives
Compare with another place
Tønsberg compared
Put Tønsberg side by side with another destination.
Tønsberg vs Horten
In October the holiday weather in Tønsberg and Horten is about equally good (score 11 vs 10). During the day it is about as warm in Horten as in Tønsberg. The sea is about equally warm. Horten gets one hour less sunshine a day.
| in October | Tønsberg | Horten |
|---|---|---|
| Holiday weather score | 11 | 10 |
| Daytime high | 11° | 11° |
| Sea | 12° | 12° |
| Sunshine | 4 h | 3 h |
| Rainy days | 12 | 12 |
| Best time | Jul | Jul |
Through the year
Best places in the country
Norway in October: the best places
In October, Tønsberg ranks 11 among the 31 nearest destinations in this country.
- Skien11°26
- 2Oslo10°12°25
- 3Kongsberg10°22
- 4Hønefoss10°22
- 5Bergen12°13°21
- 6Stavanger12°13°20
- 7Florø11°12°18
- 8Rjukan9°15
- 11TønsbergThis page11°12°11
Places nearby
Near Tønsberg
Other destinations close by.
Places with a similar climate
Places with a climate like Tønsberg
Destinations whose weather through the year is closest to Tønsberg's – good alternatives.
Frequently asked questions about Tønsberg
When is the best time to visit Tønsberg?
The best time to visit Tønsberg is in July. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Tønsberg?
The sea temperature in Tønsberg ranges from 3.0 °C in February to 18.3 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
Can you swim in Tønsberg in October?
Only if you don't mind cold water: in October the sea averages just 12.1 °C. Comfortable swimming temperatures are not reached at any time of year.
What is the warmest month in Tønsberg?
July is the warmest month, with average highs of 21 °C and nights around 14 °C. January is the coolest month at 2 °C.
When does it rain most in Tønsberg?
Rain is frequent in August; the wettest month is October with 89 mm. The driest month is March with 47 mm.
How many hours of sunshine does Tønsberg get?
Tønsberg gets around 1,920 hours of sunshine a year. The sunniest month is June with 8.9 hours a day; in December there are 1.4 hours a day.
What time zone is Tønsberg in?
Tønsberg is on UTC+1 in January and UTC+2 in July.
How long is the flight from London to Tønsberg?
A nonstop flight from London to Tønsberg takes about 1 h 50 min, for a straight-line distance of about 1,100 km.
Which school holidays are best for Tønsberg?
Tønsberg has its best school-holiday weather during the summer holidays (score 41) and its weakest during the Christmas holidays (score 10). Holiday ratings (0–100): Easter holidays 25, May half-term 29, summer holidays 41, October half-term 11, Christmas holidays 10.