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Brittany, France · Temperate

Brittany: best months to visit

July (8.2/10) · December (1.0/10).

📅 Data updated: October 2026 🛰️ ERA5 · 10 years 📍 48.11°N · 1.68°W
⚡ Quick answer
July
Depends on your goals
8.2/10
☀️ Jul
Top score (8.2/10)
🌤️ Aug
Alt. (8.2/10)
Dec
Plus rude (1.0/10)
🏛️ Heritage🌦️ Moderate rain
Photo par Antoine Pouligny via Unsplash
Decide

When to visit Brittany?

The decision rests on several criteria. Climate score, tourist crowds and feasible activities.

Verdict: In Brittany, July and August clearly stand out. December concentrates the least favorable conditions.
Top & avoid
🏆 July · 8.2 August · 8.2 June · 7.9 September · 7.7 ⚠️ December · 1.0
1.0
Jan
4.1
Feb
4.2
Mar
4.4
Apr
7.5
May
7.9
Jun
8.2
Jul
8.2
Aug
7.7
Sep
4.4
Oct
4.1
Nov
1.0
Dec
Best period · ≥ 7 Decent period · 4 – 7 Tough conditions · < 4

What you grasp in 5 seconds

Brittany offers 5 comfortable months, with 2 months to avoid (January, December). The gap is sharp: 8.2 in July vs 1.0 in December.

What to check next

Your tolerance for crowds and budget. The best months concentrate tourist saturation and higher prices. Shoulder seasons offer a good compromise.

Next action

Scroll down to the detailed table to compare month by month, then open the page of the month that interests you.

How we calculate the score

The score combines 4 weighted criteria using 10 years of real climate data (ERA5).

Source : ERA5 · Open-Meteo · 10 years (2016–2025) · Full methodology →

Understand

Compare all 12 months

Month-by-month details: temperature, rain, sunshine, score and verdict.

✅ 5 comfortable months (May · Jun · Jul · Aug · Sep)
MonthT° minT° maxRain %mm/daySunScoreVerdict
🌧️ January →37°F48°F37%2.8mm2.5h1.0/10Tough conditions
🌥️ February →39°F52°F36%2.1mm3.9h4.1/10Decent period
🌥️ March →41°F54°F29%2.3mm4.7h4.2/10Decent period
🌥️ April →43°F59°F33%1.9mm6.7h4.4/10Decent period
☀️ May →50°F66°F29%2.0mm7.0h7.5/10Best period
☀️ June →55°F72°F25%2.7mm7.4h7.9/10Best period
☀️ July →57°F73°F23%1.5mm7.9h8.2/10Best period
☀️ August →57°F75°F23%1.6mm7.4h8.2/10Best period
☀️ September →55°F70°F26%2.1mm6.1h7.7/10Best period
🌥️ October →50°F63°F35%2.8mm4.6h4.4/10Decent period
🌥️ November →43°F55°F42%2.8mm3.3h4.1/10Decent period
🌧️ December →41°F50°F40%2.8mm2.6h1.0/10Tough conditions
📊 Quick read
Optimal window
May → Sep
Good transition
Apr · Oct
Tough period
Jan · Dec
🌡️ Detailed conditions (July)
🌡️ Feel
Comfortable
☀️ UV
5.9 · Moderate
💧 Humidity feel
56°F · Pleasant
☔ Rain
23% · 1.5 mm/day
🌅 Sunshine
7.9h/day
Week by week

Brittany week by week: your odds of avoiding rain

For each week of the year: in how many years out of 10 it was mostly dry (at most 2 rainy days), 2016 to 2025.

Safest week: Aug 20 to Aug 26, mostly dry in 10 years out of 10 (1.1 rainy day(s) on average).

Most exposed: Dec 3 to Dec 9, mostly dry in 3 years out of 10 (2.8 rainy days on average).

Number = years out of 10 with at most 2 rainy days in the week. Source: ERA5 reanalysis (ECMWF) via Open-Meteo, daily data 2016-2025. Rainy day = at least 1 mm, as everywhere on the site.
JanJan 14/1049°FJan 85/1047°FJan 154/1045°FJan 225/1048°FJan 294/1050°F
FebFeb 53/1048°FFeb 124/1052°FFeb 197/1053°FFeb 264/1051°F
MarMar 55/1053°FMar 128/1054°FMar 198/1056°FMar 266/1058°F
AprApr 25/1058°FApr 96/1061°FApr 168/1063°FApr 236/1060°FApr 306/1062°F
MayMay 76/1065°FMay 146/1066°FMay 218/1068°FMay 289/1072°F
JunJun 48/1069°FJun 118/1072°FJun 186/1076°FJun 258/1075°F
JulJul 27/1074°FJul 97/1076°FJul 167/1078°FJul 238/1075°FJul 307/1075°F
AugAug 66/1077°FAug 137/1076°FAug 2010/1076°FAug 275/1074°F
SepSep 38/1074°FSep 108/1072°FSep 177/1070°FSep 245/1066°F
OctOct 16/1065°FOct 87/1065°FOct 154/1064°FOct 225/1061°FOct 294/1058°F
NovNov 54/1056°FNov 124/1055°FNov 194/1052°FNov 264/1050°F
DecDec 33/1050°FDec 105/1049°FDec 174/1051°FDec 245/1049°F

A specific date? The app computes the same figure day by day.

10-year trend

Annual temperatures — Brittany

Min/max temperature curves observed over the past 10 years (ERA5). Shows climate stability and trend.

T° maxT° meanT° min43°46°50°54°57°61°64°201620172018201920202021202220232024202564°F — decade peak (2022)+1.28°F / decade
Tailor

For your trip

A few angles depending on what kind of trip you are planning.

🏛️ Heritage🍴 Gastronomy☔ Indoor sights
Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

🎟️ Activities & tours · Brittany

GetYourGuide selection · free cancellation

See all →
Affiliate link · GetYourGuide
Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a city break.

Country · France

🗣️LanguageFrench
💶CurrencyEuro (€)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘExpensive · 4/5

🌡️ Climate

🌍Climate typeTemperate
📈Climate trend ⓘStable
🔥Hottest monthAugust · 75°F
❄️Coolest monthJanuary · 48°F
🌧️Rainiest month ⓘNovember · 42%

🏛️ City break

📅Tourist peak seasonJune → August
☔Indoor sights ⓘYear-round
🚇Public transportGood
🛂VisaSchengen · 90 days
Explore

Related destinations & guides

If this destination doesn't fit your dates, here are alternatives and guides.

Location

Where is Brittany ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Temperate climate with a 8.2 → 1.0 gap between best and worst month. 10 years of ERA5 data to choose by project.
48.11°N · 1.68°W
Questions

Frequently asked questions

What is the best time to visit Brittany?
August is the best month with 75°F highs, 57°F lows, 7.4h of sunshine and 23.0% rainy days. The months of August & July offer comparable conditions.
How many hours of sunshine does Brittany get in August?
Brittany averages 7.4 sunshine hours per day in August. It is the sunniest month with a climate score of 7.7/10.
What is the rainiest month in Brittany?
January is the most unfavourable month with January has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Brittany in August?
In August, overnight lows reach 57°F, while afternoon highs average 75°F.
Is Brittany good in winter?
In winter (December-February), Brittany scores 2.0/10 on average — Difficult period — prefer the peak season.. The best month overall remains August with a score of 7.7/10.
When should you avoid Brittany?
January is the most difficult month to visit Brittany, with January has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.