Climate and monthly weather forecast
Thibodaux, LA

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The climate of Thibodaux

Dominated by a humid subtropical climate (Cfa according to the Köppen climate classification), Thibodaux, Louisiana, experiences an abundance of rainfall throughout the year, irrespective of the seasons. With no dry season to highlight, the city wears a perpetually moist ambiance, coupled with relatively high temperatures that seldom dips beyond moderation.

The temperature spectrum of Thibodaux oscillates between an average high of 60.8°F (16°C) in January to a peak of 90°F (32.2°C) in July, indicating a substantial difference of nearly 30°F (-1.1°C) through the year. The lowest temperatures, on the other hand, sees a similar pattern, ranging from 46.2°F (7.9°C) in January and climbing up to a warm 75.7°F (24.3°C) in July and August. An interesting trajectory to note here is the high relative humidity, which holds steady around 76% to 79%, making the overall environment rather humid.

Rainfall distribution does not strictly comply with a seasonal pattern, with July experiencing the heaviest downpours of approximately 4.61in. December, a usual suspect for lowered rainfall, actually records a higher than usual rainfall of 1.85in. Sunshine hours peak at 14 hours in June and dip to a low 10.3 hours in December, laying a clear contrast between summer and winter days.

Though Thibodaux does not witness harsh winters, snowfall events are notably rare, with January occasionally recording minute occurrences. Wind speeds hover around 5.2mph (8.4km/h) to 8.1mph (13km/h) throughout the year, peaking slightly in March and November.

The best time to visit Thibodaux

Looking at various factors, March to May presents itself as the best time to visit Thibodaux. In these months, temperatures range between a comfortable 65.7°F (18.7°C) to 77.9°F (25.5°C), giving visitors a spring season filled with warmth but not overwhelming heat. Rainfall during this time is moderate, with April seeing the highest rainfall compared to the other spring months.

The worst time to visit Thibodaux

The period from June to August corresponds with Thibodaux's sultriest summer season. With the temperatures soaring to an average high of 88.9°F (31.6°C) to 90°F (32.2°C) and coupled with rainfall peaking at 4.61in in July, these months can be challenging for visitors who are not accustomed to such weather conditions. The high humidity further adds to the discomfort, making outdoor activities demanding.

Spring weather in Thibodaux

Transitioning from the milder winter, the spring in Thibodaux witnesses a climb in temperature from 60.8°F (16°C) in February to 77.9°F (25.5°C) by end of May. Rainfall oscillates mildly, being highest in April with 1.5in and dropping to 1.18in in March. Days grow uniformly longer with increased daylight hours, rising from 11.2 hours in February to a pleasant 13.7 hours in May.

Summer weather in Thibodaux

Summer season brings an escalation in temperature, humidity, and rainfall. June starts with a common high temperature of 88.9°F (31.6°C) which peaks at 90°F (32.2°C) in July and marginally drops to 89.2°F (31.8°C) August. Concurrent to the heat, summer months carry the brunt of the annual rainfall, with July witnessing a massive 4.61in. Humidity stays high throughout the summer months, adding to the weight of the heat and rain.

Autumn weather in Thibodaux

Autumn, from September to November, sees the summer's heat and humidity waning down, paving a more pleasant path. Temperatures take a downturn going from 86.7°F (30.4°C) in September to a more temperate 69.4°F (20.8°C) in November. Although rainfall decreases, it remains significant, with September seeing 1.93in and November recording 1.14in.

Winter weather in Thibodaux

Winter in Thibodaux is gentle and mild, nowhere near the extremes. December steps in with an average high temperature of 63.7°F (17.6°C), which dips slightly come January and February. Rainfall during the Winter months is moderate, with December experiencing a slightly higher than usual 1.85in of rain. Daylight hours in winter plunge down to 10.3 hours in December, the lowest throughout the year, before gradually increasing again from January onward.

Weather in January

The beginning of the year in Thibodaux, Louisiana brings with it breezy conditions, overcast skies, and modest rainfall. While the daytime temperatures are quite mild, it tends to cool down noticeably at night time. Notably, January sees the mercury drop to its lowest average low of the year at 46.2°F (7.9°C). Weather in January »

Weather in February

The second month of the year witnesses a gentle rise in temperature making weather a bit warmer than January. February is noted for an increase in precipitation levels. The rainfall takes a leap, reaching the peak of the winter season at 1.46" (37mm). Weather in February »

Weather in March

In Thibodaux, Louisiana, the transition to March brings increased daylight hours and brighter days as winter begins to fade away. The rise of temperature continues in March with the introduction of a spring-like climate. Further, the month becomes equally notorious for its rainfall activities, where an average of 1.18" (30mm) rain falls, creating a slight retreat from February's levels. Weather in March »

Weather in April

April in Thibodaux, Louisiana signifies a shift to more definitive spring-like weather conditions. The warm days of April can be attributed to the rise in hours of daylight and sunshine. The amount of rainfall spikes again in this month compared to March to reach 1.5" (38mm). Weather in April »

Weather in May

As spring transitions into summer in Thibodaux, Louisiana, the weather conditions see an even more warmer transformation. May features longer daylight hours and correspondingly longer sunshine hours. Moreover, May warns of the impending intense summer rains with a significant increase in rainfall to 2.24" (57mm). Weather in May »

Weather in June

June in Thibodaux, Louisiana marks the onset of the region's typically hot and humid summer season. The mercury consistently rises throughout the month, and the relative humidity stays constant, which can make the heat feel more oppressive. Weather in June »

Weather in July

July in Thibodaux, Louisiana brings the scorching summer heat, typical of the Southern US. The weather becomes particularly harsh during midday when the sun shines at its brightest. July sees temperatures reaching the highest point of the year, soaring to an average high of 90°F (32.2°C). Weather in July »

Weather in August

August in Thibodaux, Louisiana marches on with the summer's high temperature trend carried over from July. August musters all signs of nearing end of summer with cooler evenings and lesser sunshine hours. It is important to note that August experiences the highest rainfall in the year with showers amounting to 4.61" (117mm). Weather in August »

Weather in September

By September, Louisiana begins to offer relief from the relentless summer heat. The decrease in temperature, rainfall, and humidity is distinctively noticeable compared to August. September, although, remains above the annual average by recording rainfall of 1.93" (49mm). Weather in September »

Weather in October

October signals the arrival of the fall season in Thibodaux, Louisiana. The daytime temperatures are warm and welcoming while the nights are decidedly cooler. Despite the decrease in rainfall quantities from September to 2.2" (56mm) in October, the year's highest wind speeds are recorded this month. Weather in October »

Weather in November

November, the last month of the autumn in Thibodaux, is pleasant month, with temperature in the range of an average high of 69.4°F (20.8°C) and an average low of 53.4°F (11.9°C). As Thibodaux, Louisiana, enters November, the average high-temperature decreases from the a moderately hot 79.7°F (26.5°C) of October to an agreeable 69.4°F (20.8°C). Weather in November »

Weather in December

As the year draws to an end in Thibodaux, Louisiana, the winter chill starts making its presence known. December is characterized by moderate to low temperatures during the day accompanied by cooler nights. The shift in weather pattern pushes down the rainfall to 1.85" (47mm) compared to November. Weather in December »
Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

In Thibodaux, the average lowest temperatures are observed in January, with a high of 60.8°F (16°C) and a low of 46.2°F (7.9°C).

How many days does it rain in Thibodaux?

Throughout the year, there are 166.9 rainfall days, and 25.39" (645mm) of precipitation is accumulated.

When does it snow?

Months with snowfall are January and December.

When does it snow the most?

The month with the most snowfall days is January, when snow falls for 0.3 days.

How many days does it snow?

Throughout the year, there are 0.4 snowfall days.

What are the months with the lowest UV index?

January, November and December, with an average maximum UV index of 4, are months with the lowest UV index.

When it does not snow?

February through November are months without snowfall.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What are the months with the highest UV index?

May through September, with an average maximum UV index of 7, are months with the highest UV index.

When are the longest days?

The month with the longest days is June, with an average of 14h and 0min of daylight.

What month has the most sunshine?

The month with the most sunshine is June, with an average of 10.9h of sunshine.

What are the warmest months in Thibodaux?

July brings the highest temperatures, with an average high of 90°F (32.2°C) and an average low of 75.7°F (24.3°C).

What are the most humid months?

July through September and December, with an average relative humidity of 79%, are most humid months.

What is the rainiest month?

The month with the most rainfall is July, when the rain falls for 21.7 days and typically aggregates up to 4.61" (117mm) of precipitation.

What is the least humid month?

With an average relative humidity of 74%, October is the least humid month.

What is the driest month in Thibodaux?

The month with the least rainfall is November, when the rain falls for 7.2 days and typically collects 1.14" (29mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 10h and 18min of daylight.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 5.2h of sunshine.

Average temperature
Thibodaux, LA

Average temperature - Thibodaux, LA

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (60.8°F).

The months with the highest average low temperature are July and August (75.7°F).
The coldest month (with the lowest average low temperature) is January (46.2°F).

Average pressure
Thibodaux, LA

Average pressure - Thibodaux, LA

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed
Thibodaux, LA

Average wind speed - Thibodaux, LA

The windiest months (with the highest average wind speed) are February and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity
Thibodaux, LA

Average humidity - Thibodaux, LA

The months with the highest relative humidity are July, August, September and December (79%).
The month with the lowest relative humidity is October (74%).

Average rainfall
Thibodaux, LA

Average rainfall - Thibodaux, LA

The wettest month (with the highest rainfall) is July (4.61").
The driest month (with the least rainfall) is November (1.14").

Average rainfall days
Thibodaux, LA

Average rainfall days - Thibodaux, LA

The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (7.2 days).

Average snowfall days
Thibodaux, LA

Average snowfall days - Thibodaux, LA

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

Average daylight / Average sunshine
Thibodaux, LA

Average daylight / Average sunshine - Thibodaux, LA

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

Average sunshine days
Thibodaux, LA

Average sunshine days - Thibodaux, LA

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is August (5.8 days).

Average UV index
Thibodaux, LA

Average UV index - Thibodaux, LA

The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, November and December (UV index 4).

Average visibility
Thibodaux, LA

Average visibility - Thibodaux, LA

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Thibodaux, Louisiana, USA

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