AI-generatedChattanooga at a glance
- Best time
- Mar – May, Sep – Nov
- Warmest month
- Jul · 33°
- Sunshine a year
- 2,160 h
- Rain a year
- 1,268 mm
- Climate
- Temperate
- Time zone
- UTC−5 / UTC−4
- Elevation
- 206 m
Climate in Chattanooga
Chattanooga has a temperate climate with warm summers and cool winters. July is the warmest month with average highs of 33 °C, while January is the coolest at 11 °C. With around 2,160 hours of sunshine a year, Chattanooga is moderately sunny; June is the sunniest month with 7.3 hours a day.
Holiday weather through the year
Best time to visit Chattanooga
The best time to visit Chattanooga is from March to May and from September to November. For sightseeing, day trips and hiking, conditions are most comfortable from March to May and from October to November. Rain is frequent from June to July; the wettest month is March with 128 mm.
Chattanooga through the seasons
How the weather changes over the seasons, with averages for each.
Chattanooga in spring
Mar – May
Good
- 18–27 °C by day
- 6.3 h of sun a day
- 32 rainy days in all
Chattanooga in summer
Jun – Aug
Fair
- 31–33 °C by day
- 7.1 h of sun a day
- 37 rainy days in all
Chattanooga in autumn
Sep – Nov
Good
- 17–29 °C by day
- 5.8 h of sun a day
- 23 rainy days in all
Chattanooga in winter
Dec – Feb
Fair
- 11–13 °C by day
- 4.3 h of sun a day
- 31 rainy days in all
Which month for what?
Beach & swimming
No sea nearby
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Mar – May, Oct – Nov
15–28 °C and not too much rain
Rainy months
Jun – Jul
Rainy season or more than 12 rainy days
Find your perfect month
Tell us what you like and we rate every month in Chattanooga for you.
Your best months: April, October
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Excellent
Best time to visit: March – May, September – November
Good forSightseeing & walks
A typical day in October
- Morning, 08:00: about 12°
- Midday, 13:00: about 22°
- Afternoon, 16:00: about 23°
- Evening, 20:00: about 19°
- Night, 23:00: about 16°
07:4619:08
Pleasant evenings; a light layer can help.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 07:30–08:20 · evening 18:34–19:23
- Blue hour
- Morning 07:20–07:30 · evening 19:23–19:33
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 Chattanooga compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 26° at the start of the month to 20° at the end. The days get 1.0 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 26° | 20° |
| Night-time low | 14° | 8° |
| Daylight | 11.9 h | 10.8 h |
What is the weather like in Chattanooga in October?
In October, Chattanooga is warm: daytime highs average 24 °C, and nights cool down to about 11 °C. Expect around 6.0 hours of sunshine a day. Rain falls on about 7 days, adding up to 79 mm. All in all, October is an excellent month for a holiday in Chattanooga.
More details for October
- Daylight
- 11 h 22 min07:46 – 19:08
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 3 daysdew point 18 °C or moreAll months
- Wind
- 12 km/haverage daily peakAll months
- Cloud cover
- 45 %on averageAll months
- Hot days
- 2 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC−4offset from UTC
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %50 %
- Few rainy daysweight 30 %80 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Sunscreen
- A jumper for the evenings
Compare two months in Chattanooga
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
October has the better holiday weather in Chattanooga: score 84 against 79. In April, days are 1 °C cooler than in October. April has 3 more rainy days. The sun shines an hour longer a day in April.
| Month | October | April |
|---|---|---|
| Holiday weather score | 84better | 79 |
| Daytime high | 24° | 23° |
| Night-time low | 11° | 10° |
| Sunshine | 6.0 h | 6.6 hbetter |
| Rainy days | 7better | 10 |
| Rainfall | 79 mmbetter | 119 mm |
| Muggy days | 3 | 0better |
Based on the climate averages 1996–2025.
Chattanooga month by month
The typical weather for every month at a glance.
35January11° · 4.4 h
In January, Chattanooga is cool: daytime highs average 11 °C, and nights cool down to about 0 °C. Expect around 4.4 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 117 mm in total. All in all, January is not an ideal month for a holiday in Chattanooga.
Chattanooga in January48February13° · 4.5 h
In February, Chattanooga is cool: daytime highs average 13 °C, and nights cool down to about 2 °C. Expect around 4.5 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 116 mm in total. All in all, February is a so-so month for a holiday in Chattanooga.
Chattanooga in February73March18° · 5.6 h
In March, Chattanooga is mild: daytime highs average 18 °C, and nights cool down to about 6 °C. Expect around 5.6 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 128 mm in total. All in all, March is a good month for a holiday in Chattanooga.
Chattanooga in March79April23° · 6.6 h
In April, Chattanooga is warm: daytime highs average 23 °C, and nights cool down to about 10 °C. The sun shines for around 6.6 hours a day. Rain is frequent, with about 10 rainy days and 119 mm in total. All in all, April is a good month for a holiday in Chattanooga.
Chattanooga in April76May27° · 6.8 h
In May, Chattanooga is hot: daytime highs average 27 °C, and nights cool down to about 15 °C. The sun shines for around 6.8 hours a day. Rain is frequent, with about 11 rainy days and 105 mm in total. On about 8 days the thermometer climbs to 30 °C or more. All in all, May is a good month for a holiday in Chattanooga.
Chattanooga in May50June31° · 7.3 h
In June, Chattanooga is hot: daytime highs average 31 °C, and even at night it stays warm at around 20 °C. The sun shines for around 7.3 hours a day. Rain is frequent, with about 13 rainy days and 95 mm in total. On about 20 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, June is a so-so month for a holiday in Chattanooga.
Chattanooga in June38July33° · 7.2 h
In July, Chattanooga is hot: daytime highs average 33 °C, and even at night it stays warm at around 22 °C. The sun shines for around 7.2 hours a day. Rain is frequent, with about 13 rainy days and 106 mm in total. On about 26 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is not an ideal month for a holiday in Chattanooga.
Chattanooga in July44August32° · 6.9 h
In August, Chattanooga is hot: daytime highs average 32 °C, and even at night it stays warm at around 21 °C. The sun shines for around 6.9 hours a day. Rain is frequent, with about 11 rainy days and 86 mm in total. On about 25 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is a so-so month for a holiday in Chattanooga.
Chattanooga in August69September29° · 6.3 h
In September, Chattanooga is hot: daytime highs average 29 °C, and nights cool down to about 18 °C. Expect around 6.3 hours of sunshine a day. Rain falls on about 8 days, adding up to 98 mm. On about 13 days the thermometer climbs to 30 °C or more. All in all, September is a good month for a holiday in Chattanooga.
Chattanooga in September84October24° · 6.0 h
In October, Chattanooga is warm: daytime highs average 24 °C, and nights cool down to about 11 °C. Expect around 6.0 hours of sunshine a day. Rain falls on about 7 days, adding up to 79 mm. All in all, October is an excellent month for a holiday in Chattanooga.
Chattanooga in October72November17° · 5.2 h
In November, Chattanooga is mild: daytime highs average 17 °C, and nights cool down to about 5 °C. Expect around 5.2 hours of sunshine a day. Rain falls on about 9 days, adding up to 99 mm. All in all, November is a good month for a holiday in Chattanooga.
Chattanooga in November39December12° · 4.0 h
In December, Chattanooga is cool: daytime highs average 12 °C, and nights cool down to about 2 °C. Expect around 4.0 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 123 mm in total. All in all, December is not an ideal month for a holiday in Chattanooga.
Chattanooga in DecemberClimate in detail
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Chattanooga
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°
- Warm 20–24°
- muggy month (15+ muggy days)
CoolOctober: nights around 11°. A duvet at night and a jumper for the evening. Muggy on about 3 days (dew point 18 °C or more).
The coolest nights are in January (0°), the warmest in July (22°). Tropical nights of 20 °C and more are the rule from June to August; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) in May and in September. Nights fall below 8 °C on average from November to March, so the room should be heated. It is muggy (dew point 18 °C or more) on about 93 days a year, mostly from June to August.
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 | 35 | 11° | 0° | 4.4 h | 10 | 117 |
| FebruaryFeb | 48 | 13° | 2° | 4.5 h | 11 | 116 |
| MarchMar | 73 | 18° | 6° | 5.6 h | 11 | 128 |
| AprilApr | 79 | 23° | 10° | 6.6 h | 10 | 119 |
| MayMay | 76 | 27° | 15° | 6.8 h | 11 | 105 |
| JuneJun | 50 | 31° | 20° | 7.3 h | 13 | 95 |
| JulyJul | 38 | 33° | 22° | 7.2 h | 13 | 106 |
| AugustAug | 44 | 32° | 21° | 6.9 h | 11 | 86 |
| SeptemberSep | 69 | 29° | 18° | 6.3 h | 8 | 98 |
| OctoberOct | 84 | 24° | 11° | 6.0 h | 7 | 79 |
| NovemberNov | 72 | 17° | 5° | 5.2 h | 9 | 99 |
| DecemberDec | 39 | 12° | 2° | 4.0 h | 11 | 123 |
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
35.05° N, 85.31° W · 206 m · America/New_York
Sunshine hours in Chattanooga
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 6.0 of 11.4 hours of daylight in Chattanooga, 53 % 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 in Chattanooga: 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, Chattanooga has about 7 rainy days with 79 mm of rain in total.
UV index in Chattanooga
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 5 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.
The sun is strongest in June (UV 11).
Minutes until sunburn in October
- Very fair skin
- about 25 min
- Fair skin
- about 30 min
- Light brown skin
- about 45 min
- Olive skin
- about 55 min
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 and clouds in Chattanooga
How breezy and how cloudy Chattanooga 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 Chattanooga typically peaks at 12 km/h during the day: Beaufort 3, gentle breeze.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 45 % of the sky over Chattanooga: variable cloud, with about 6.0 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 Chattanooga
How often the day gets hot in Chattanooga (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, Chattanooga has about 2 hot days, with an average daytime high of 24 °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
Planning a trip to Chattanooga
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Chattanooga 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.
Chattanooga has its best school-holiday weather during October half-term (score 84) and its weakest during the Christmas holidays (score 37).
- 77
Easter holidays
Mar – Apr
Good
- 22 °C by day
- 6.3 h of sun a day
- 10 rainy days a month
Good for: Sightseeing & walks
- 71
May half-term
May – Jun
Good
- 28 °C by day
- 6.9 h of sun a day
- 11 rainy days a month
Good for: Sightseeing & walks
- 42
Summer holidays
Jul – Aug
Fair
- 32 °C by day
- 7.0 h of sun a day
- 12 rainy days a month
Keep in mind: Frequent rain
- 84
October half-term
Oct
ExcellentBest holidays
- 24 °C by day
- 6.0 h of sun a day
- 7 rainy days a month
Good for: Sightseeing & walks
- 37
Christmas holidays
Dec – Jan
Poor
- 11 °C by day
- 4.2 h of sun a day
- 10 rainy days a month
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 8 h 35 min
- Distance
- 6,710 km
- Time zone
- UTC−4
- Jet lag
- About 3 days (5 h west)
Rule of thumb for flying west: for a few days before, stay up a little later, and get afternoon and evening light at your destination.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Compare & alternatives
Chattanooga compared
Put Chattanooga side by side with another destination.
Chattanooga vs Huntsville
In October the holiday weather in Chattanooga and Huntsville is about equally good (score 84 vs 84). During the day Huntsville is 1 °C warmer than Chattanooga.
| in October | Chattanooga | Huntsville |
|---|---|---|
| Holiday weather score | 84 | 84 |
| Daytime high | 24° | 25° |
| Sunshine | 6 h | 6 h |
| Rainy days | 7 | 7 |
| Best time | Mar – May, Sep – Nov | Mar – May, Oct – Nov |
Through the year
USA in October: the best places
In October, Chattanooga ranks 12 among the 31 nearest destinations in this country.
- Panama City Beach27°26°90
- 2Destin27°26°89
- 3Pensacola28°26°88
- 4Montgomery27°87
- 5Hilton Head Island26°24°87
- 6Jackson26°86
- 7Mobile27°25°86
- 8Charleston26°24°86
- 12ChattanoogaThis page24°84
Near Chattanooga
Other destinations close by.
Places with a climate like Chattanooga
Destinations whose weather through the year is closest to Chattanooga's – good alternatives.
Frequently asked questions about Chattanooga
When is the best time to visit Chattanooga?
The best time to visit Chattanooga is from March to May and from September to November. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
What is the warmest month in Chattanooga?
July is the warmest month, with average highs of 33 °C and nights around 22 °C. January is the coolest month at 11 °C.
When does it rain most in Chattanooga?
Rain is frequent from June to July; the wettest month is March with 128 mm. The driest month is October with 79 mm.
How many hours of sunshine does Chattanooga get?
Chattanooga gets around 2,160 hours of sunshine a year. The sunniest month is June with 7.3 hours a day; in December there are 4.0 hours a day.
What time zone is Chattanooga in?
Chattanooga is on UTC−5 in January and UTC−4 in July.
How long is the flight from London to Chattanooga?
A nonstop flight from London to Chattanooga takes about 8 h 35 min, for a straight-line distance of about 6,710 km.
Which school holidays are best for Chattanooga?
Chattanooga has its best school-holiday weather during October half-term (score 84) and its weakest during the Christmas holidays (score 37). Holiday ratings (0–100): Easter holidays 77, May half-term 71, summer holidays 42, October half-term 84, Christmas holidays 37.