AI-generatedHeidelberg at a glance
- Best time
- May – Sep
- Warmest month
- Aug · 25°
- Sunshine a year
- 1,750 h
- Rain a year
- 715 mm
- Climate
- Continental
- Time zone
- UTC+1 / UTC+2
- Elevation
- 115 m
Climate in Heidelberg
Heidelberg has warm to hot summers and cold winters with occasional snow. August is the warmest month with average highs of 25 °C, while January is the coolest at 5 °C. With around 1,750 hours of sunshine a year, Heidelberg is moderately sunny; July is the sunniest month with 7.6 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Fair
Best time to visit: May – September
Good forSightseeing & walks
A typical day in October
- Morning, 08:00: about 9°
- Midday, 13:00: about 15°
- Afternoon, 16:00: about 15°
- Evening, 20:00: about 12°
- Night, 23:00: about 11°
07:4418:37
Cool evenings: pack a jumper or a jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 07:25–08:28 · evening 17:54–18:57
- Blue hour
- Morning 07:12–07:25 · evening 18:57–19:09
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.
What is the weather like in Heidelberg in October?
In October, Heidelberg is cool: daytime highs average 15 °C, and nights cool down to about 8 °C. The sun is scarce, with only about 4 hours a day. Rain is frequent, with about 12 rainy days and 65 mm in total. All in all, October is a so-so month for a holiday in Heidelberg.
More details for October
- Daylight
- 10 h 53 min07:44 – 18:37
- UV index
- 2 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 15 km/haverage daily peakAll months
- Cloud cover
- 70 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+2Europe/Berlin
How the score comes together
- Temperatureweight 50 %74 %
- Sunshineweight 20 %8 %
- Few rainy daysweight 30 %46 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- A jumper for the evenings
- Rain jacket or umbrella
Sunshine hours in Heidelberg
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 10.9 hours of daylight in Heidelberg, 32 % of the day.
Sunshine hours: measured at the weather station 15 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.
UV index in Heidelberg
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 2 · lowLittle protection needed; sunglasses on bright days.
The sun is strongest in June (UV 8).
Minutes until sunburn in October
- Very fair skin
- about 60 min
- Fair skin
- about 75 min
- Light brown skin
- about 105 min
- Olive skin
- over 2 h
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, 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.
Rain in Heidelberg: 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, Heidelberg has about 12 rainy days with 65 mm of rain in total.
Wind and clouds in Heidelberg
How breezy and how cloudy Heidelberg 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 Heidelberg typically peaks at 15 km/h during the day: Beaufort 3, light breeze.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 70 % of the sky over Heidelberg: 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.
Heat and humidity in Heidelberg
How often the day gets hot in Heidelberg (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Heidelberg has about 0 hot days, with an average daytime high of 15 °C: pleasant. Heat plays no part this month.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Snow in Heidelberg
Snow is possible in Heidelberg, but no month makes it likely: 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 Heidelberg.
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.
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Heidelberg
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Cold 0–8°
- Cool 8–15°
- Pleasant 15–20°
CoolOctober: nights around 8°. A duvet at night and a jumper for the evening.
The coolest nights are in January (−1°), the warmest in August (16°). Nights are pleasant for sleeping (15 to 20 °C) from July to August. Nights fall below 8 °C on average from November 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 | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|
| JanuaryJan | 13 | 5° | −1° | 1.8 h | 12 | 60 |
| FebruaryFeb | 16 | 7° | 0° | 2.9 h | 11 | 55 |
| MarchMar | 35 | 11° | 2° | 4.4 h | 11 | 54 |
| AprilApr | 65 | 15° | 6° | 6.4 h | 10 | 46 |
| MayMay | 77 | 19° | 10° | 7.0 h | 12 | 69 |
| JuneJun | 81 | 23° | 14° | 7.5 h | 11 | 58 |
| JulyJul | 79 | 25° | 16° | 7.6 h | 12 | 62 |
| AugustAug | 81 | 25° | 16° | 7.2 h | 10 | 56 |
| SeptemberSep | 78 | 21° | 12° | 5.7 h | 9 | 58 |
| OctoberOct | 53 | 15° | 8° | 3.5 h | 12 | 65 |
| NovemberNov | 19 | 9° | 4° | 1.9 h | 12 | 64 |
| DecemberDec | 9 | 6° | 1° | 1.4 h | 14 | 69 |
Climate averages 1996–2025, 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
49.41° N, 8.69° E · 115 m · Europe/Berlin
Best time to visit Heidelberg
The best time to visit Heidelberg is from May to September. For sightseeing, day trips and hiking, conditions are most comfortable from April to October. Rain is most frequent from November to December; the wettest month is May with 69 mm.
Heidelberg through the seasons
How the weather changes over the seasons, with averages for each.
Heidelberg in spring
Mar – May
Fair
- 11–19 °C by day
- 6 h of sun a day
- 32 rainy days in all
Heidelberg in summer
Jun – Aug
Excellent
- 23–25 °C by day
- 7 h of sun a day
- 32 rainy days in all
Heidelberg in autumn
Sep – Nov
Fair
- 9–21 °C by day
- 4 h of sun a day
- 33 rainy days in all
Heidelberg in winter
Dec – Feb
Poor
- 5–7 °C by day
- 2 h of sun a day
- 36 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Heidelberg for you.
Your best months: June – August
Based on the climate averages; tap a month to see its details.
Compare two months in Heidelberg
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
June has the better holiday weather in Heidelberg: score 81 against 53. In June, days are 8 °C warmer than in October. June has one rainy day fewer. The sun shines 4 hours longer a day in June.
| Month | October | June |
|---|---|---|
| Weather score | 53 | 81better |
| Day high | 15° | 23° |
| Night low | 8° | 14° |
| Sunshine | 3.5 h | 7.5 hbetter |
| Rainy days | 12 | 11better |
| Rainfall | 65 mm | 58 mm |
| Muggy days | 0better | 1 |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
No sea nearby
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Apr – Oct
15–28 °C and not too much rain
Rainy months
Nov – Dec
12 or more rainy days
Snow
Dec – Jan
Snow on 2 or more days
Heidelberg month by month
The typical weather for every month at a glance.
13January5° · 2 h
In January, Heidelberg is cold: daytime highs average 5 °C, and nights often drop below freezing (−1 °C). The sun is scarce, with only about 2 hours a day. Rain is frequent, with about 12 rainy days and 60 mm in total. Snow falls on about 2 days. All in all, January is not an ideal month for a holiday in Heidelberg.
Heidelberg in January16February7° · 3 h
In February, Heidelberg is cold: daytime highs average 7 °C, and nights cool down to about 0 °C. The sun is scarce, with only about 3 hours a day. Rain is frequent, with about 11 rainy days and 55 mm in total. All in all, February is not an ideal month for a holiday in Heidelberg.
Heidelberg in February35March11° · 4 h
In March, Heidelberg is cool: daytime highs average 11 °C, and nights cool down to about 2 °C. Expect around 4 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 54 mm in total. All in all, March is not an ideal month for a holiday in Heidelberg.
Heidelberg in March65April15° · 6 h
In April, Heidelberg is cool: daytime highs average 15 °C, and nights cool down to about 6 °C. Expect around 6 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 46 mm in total. All in all, April is a good month for a holiday in Heidelberg.
Heidelberg in April77May19° · 7 h
In May, Heidelberg is mild: daytime highs average 19 °C, and nights cool down to about 10 °C. The sun shines for around 7 hours a day. Rain is frequent, with about 12 rainy days and 69 mm in total. All in all, May is a good month for a holiday in Heidelberg.
Heidelberg in May81June23° · 8 h
In June, Heidelberg is warm: daytime highs average 23 °C, and nights cool down to about 14 °C. The sun shines for around 8 hours a day. Rain is frequent, with about 11 rainy days and 58 mm in total. All in all, June is an excellent month for a holiday in Heidelberg.
Heidelberg in June79July25° · 8 h
In July, Heidelberg is warm: daytime highs average 25 °C, and nights cool down to about 16 °C. The sun shines for around 8 hours a day. Rain is frequent, with about 12 rainy days and 62 mm in total. All in all, July is a good month for a holiday in Heidelberg.
Heidelberg in July81August25° · 7 h
In August, Heidelberg is warm: daytime highs average 25 °C, and nights cool down to about 16 °C. The sun shines for around 7 hours a day. Rain is frequent, with about 10 rainy days and 56 mm in total. All in all, August is an excellent month for a holiday in Heidelberg.
Heidelberg in August78September21° · 6 h
In September, Heidelberg is mild: daytime highs average 21 °C, and nights cool down to about 12 °C. Expect around 6 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 58 mm in total. All in all, September is a good month for a holiday in Heidelberg.
Heidelberg in September53October15° · 4 h
In October, Heidelberg is cool: daytime highs average 15 °C, and nights cool down to about 8 °C. The sun is scarce, with only about 4 hours a day. Rain is frequent, with about 12 rainy days and 65 mm in total. All in all, October is a so-so month for a holiday in Heidelberg.
Heidelberg in October19November9° · 2 h
In November, Heidelberg is cold: daytime highs average 9 °C, and nights cool down to about 4 °C. The sun is scarce, with only about 2 hours a day. Rain is frequent, with about 12 rainy days and 64 mm in total. All in all, November is not an ideal month for a holiday in Heidelberg.
Heidelberg in November9December6° · 1 h
In December, Heidelberg is cold: daytime highs average 6 °C, and nights cool down to about 1 °C. The sun is scarce, with only about 1 hours a day. Rain is frequent, with about 14 rainy days and 69 mm in total. Snow falls on about 2 days. All in all, December is not an ideal month for a holiday in Heidelberg.
Heidelberg in DecemberHeidelberg compared
Put Heidelberg side by side with another destination.
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Heidelberg vs. Mannheim
In October the holiday weather in Heidelberg and Mannheim is about equally good (score 53 vs. 53). During the day it is about as warm in Mannheim as in Heidelberg.
| in October | Heidelberg | Mannheim |
|---|---|---|
| Holiday score | 53 | 53 |
| Daytime high | 15° | 15° |
| Sunshine | 4 h | 4 h |
| Rainy days | 12 | 12 |
| Best time | May – Sep | May – Sep |
Through the year
Germany in October: the best places
In October, Heidelberg ranks 3 among the 31 nearest destinations in this country.
- Karlsruhe16°55
- 2Freiburg im Breisgau16°54
- 3HeidelbergThis page15°53
- 4Mannheim15°53
- 5Worms15°53
- 6Stuttgart15°52
- 7Baden-Baden15°52
- 8Tübingen15°51
Planning a trip to Heidelberg
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Heidelberg 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.
Heidelberg has its best school-holiday weather during the summer holidays (score 80) and its weakest during the Christmas holidays (score 11).
- 56
Easter holidays
Mar – Apr
Fair
- 14 °C by day
- 5.8 h of sun a day
- 10 rainy days a month
- 78
May half-term
May – Jun
Good
- 20 °C by day
- 7.1 h of sun a day
- 11 rainy days a month
Good for: Sightseeing & walks
- 80
Summer holidays
Jul – Aug
ExcellentBest holidays
- 25 °C by day
- 7.3 h of sun a day
- 11 rainy days a month
Good for: Sightseeing & walks
- 53
October half-term
Oct
Fair
- 15 °C by day
- 3.5 h of sun a day
- 12 rainy days a month
Good for: Sightseeing & walks
- 11
Christmas holidays
Dec – Jan
Poor
- 5 °C by day
- 1.6 h of sun a day
- 13 rainy days a month
Keep in mind: Frequent rain, Snow
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 1 h 20 min
- Distance
- 690 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.
Frequently asked questions about Heidelberg
When is the best time to visit Heidelberg?
The best time to visit Heidelberg is from May to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
What is the warmest month in Heidelberg?
August is the warmest month, with average highs of 25 °C and nights around 16 °C. January is the coolest month at 5 °C.
When does it rain most in Heidelberg?
Rain is most frequent from November to December; the wettest month is May with 69 mm. The driest month is April with 46 mm.
How many hours of sunshine does Heidelberg get?
Heidelberg gets around 1,750 hours of sunshine a year. The sunniest month is July with 7.6 hours a day; in December there are 1.4 hours a day.
What time zone is Heidelberg in?
Heidelberg uses the time zone Europe/Berlin: UTC+1 in January and UTC+2 in July.
How long is the flight from London to Heidelberg?
A nonstop flight from London to Heidelberg takes about 1 h 20 min, for a straight-line distance of about 690 km.
Which school holidays are best for Heidelberg?
Heidelberg has its best school-holiday weather during the summer holidays (score 80) and its weakest during the Christmas holidays (score 11). Holiday ratings (0–100): Easter holidays 56, May half-term 78, Summer holidays 80, October half-term 53, Christmas holidays 11.
Near Heidelberg
Other destinations close by.
Places with a climate like Heidelberg
Destinations whose weather through the year is closest to Heidelberg's – good alternatives.