30YearWeather
Oslo in August
Oslo weather in August - Norway
🌤️Mild & Comfortable

Oslo Weather in August

Plan your August trip to Oslo, Norway. Based on 30 years of NASA data, expect temperatures of 20°C (high) to 13°C (low), with 30% rain probability and 8 hours of daily sunshine. The Skagerrak averages 19°C in August. Pack rain gear for around 24 rainy days.

Avg High
20°C

Hottest around day 1

Avg Low
13°C

Coolest around day 31

Rainy Days
24days

30% avg rain chance

Sunshine
8hrs/day

Summer season

Sea Temperature in August

Skagerrak

18.7°C

Monthly Average

Water Feel
🏊Pleasant

Comfortable for most swimmers

Swim Rating
👍Good for swimming

Based on average sea surface temperature

Body of Water
Skagerrak

Oslo coastline

Oslo August Weather Calendar

Click any day to see detailed weather information

Currency

NOK

kr Norwegian krone

Language

Norwegian Nynorsk

+2 more

Driving

Right side

Connect

Most of Oslo is covered by 5G. Most of t...

Safety

Very High Safety

GPI: 1.465

Travel Intelligence

Exclusive flight analytics & health data for Oslo

Smart Flight Estimator

Airport-to-Airport Logistics

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Add your home location in settings to see airport details.

Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Well Connected
64/ 100
Traffic Index

Popular destination

Peak Daily Arrivals

0

slots per day

Peak

Apr

Low

Nov

Monthly Traffic Distribution

275
Jan
291
Feb
288
Mar
365
Apr
348
May
338
Jun
317
Jul
330
Aug
230
Sep
334
Oct
173
Nov
282
Dec
Traffic Level
Low Season

Key Connections

Trondheim Værnes (TRD)
Bergen Flesland (BGO)
Copenhagen Kastrup (CPH)
Stavanger Sola (SVG)
Stockholm -Arlanda (ARN)

Health & Safety Advisory

CDC travel health recommendations

7 Recommendations
COVID-19

All eligible travelers should be up to date with their COVID-19 vaccines. Please seeYour COVID-19 Vaccinationfor more information.

Hepatitis A

Consider hepatitis A vaccination for most travelers. It is recommended for travelers who will be doing higher risk activities, such as visiting smaller cities, villages, or rural areas where a traveler might get infected through food or water. It is recommended for travelers who plan on eating street food.

Hepatitis B

Recommended for unvaccinated travelers younger than 60 years old traveling to Norway. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Norway.

Measles

Cases of measles are on the rise worldwide. Travelers are at risk of measles if they have not been fully vaccinated at least two weeks prior to departure, or have not had measles in the past, and travel internationally to areas where measles is spreading.All international travelers should be fully vaccinated against measles with the measles-mumps-rubella (MMR) vaccine, including an early dose for infants 6–11 months, according toCDC’s measles vaccination recommendations for international travel.

Rabies

Dogs infected with rabies are not commonly found in Norway.If rabies exposures occur while in Norway, rabies vaccines are typically available throughout most of the country.Rabies pre-exposure vaccination considerations include whether travelers 1) will be performing occupational or recreational activities that increase risk for exposure to potentially rabid animals and 2) might have difficulty getting prompt access to safe post-exposure prophylaxis.Please consult with a healthcare provider to determine whether you should receive pre-exposure vaccination before travel.For more information, seecountry rabies status assessments.

Tick-borne Encephalitis

For travelers moving or traveling toTBE-endemic areasTBE vaccineis recommended for persons who will haveextensiveexposure to ticks based on their planned outdoor activities and itinerary.TBE vaccine may be considered for persons who might engage in outdoor activities in areas ticks are likely to be found.

+1 more

Source: CDC Travelers' Health

View Complete Health Guide

Is August a Good Time to Visit Oslo?

👍Solid choice for most travelers
Short Answer

August is Oslo's peak season for good reason: 20°C temperatures and 30% rain probability. But expect crowds (90% of annual maximum) and premium prices.

Decision Factors

Vaccinations required

Yellow Fever

Peak tourist season

90% of annual peak - expect crowds and peak prices

Ideal temperature range

20°C - perfect for sightseeing and outdoor activities

Health precautions needed

Be aware of: Leptospirosis, Hantavirus, Parvovirus B19

Plenty of sunshine

10.1h of sunshine daily

Calm, family-friendly seas

0.24m wave height - Lake-like

Good For

  • 🏛️
    Cultural tourists

    Comfortable conditions for exploring museums and sites

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

Who Should Avoid

  • 💰
    Budget travelers

    Peak season means premium prices everywhere

  • 👴
    Elderly travelers

    78% humidity creates difficult conditions

930 observations30-year historical data
Confidence: 99%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Oslo in August averages 20°C with 30% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: Oslo in August

What are the temperatures in Oslo in August?

Daytime highs average 20°C, nights drop to 13°C. Temperatures remain fairly consistent.

How many rainy days in Oslo in August?

Expect around 24 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Oslo in August?

Layers are key. A medium-weight jacket and closed-toe shoes.

Is August peak season in Oslo?

This is shoulder season—moderate prices and manageable crowds.