Climate Insights for Moss Bluff

Johnson County, Louisiana, United States

Hottest
August
33°C peak
Coldest
January
7°C low
Wettest
May
173mm rain
Best to Visit
October, November
Mild temps & low rain

Climate Overview

The climate in Moss Bluff is warm and mild. The average annual temperature is 21°C and approximately 1525mm of precipitation falls per year. Moss Bluff receives a notable amount of rainfall throughout the year, including during its driest month. Moss Bluff is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, December, February, when temperatures can drop to 7°C.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 17° Average: 11° Min: 7° Feb Max: 20° Average: 15° Min: 10° Mar Max: 24° Average: 18° Min: 14° Apr Max: 26° Average: 21° Min: 16° May Max: 29° Average: 25° Min: 21° Jun Max: 32° Average: 28° Min: 24° Jul Max: 33° Average: 28° Min: 25° Aug Max: 33° Average: 28° Min: 25° Sep Max: 32° Average: 27° Min: 22° Oct Max: 28° Average: 22° Min: 17° Nov Max: 23° Average: 17° Min: 12° Dec Max: 19° Average: 14° Min: 10°
Max
Average
Min

Temperatures in Moss Bluff vary considerably across the year, with a 26°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 33°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 7°C and an average of 11°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 6°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 141mm Snow: 2mm Feb Precipitation: 89mm Snow: 0mm Mar Precipitation: 103mm Snow: 0mm Apr Precipitation: 136mm Snow: 0mm May Precipitation: 173mm Snow: 0mm Jun Precipitation: 139mm Snow: 0mm Jul Precipitation: 140mm Snow: 0mm Aug Precipitation: 167mm Snow: 0mm Sep Precipitation: 121mm Snow: 0mm Oct Precipitation: 81mm Snow: 0mm Nov Precipitation: 81mm Snow: 0mm Dec Precipitation: 152mm Snow: 0mm
Precipitation
Snow

Moss Bluff is a fairly wet location, receiving approximately 1525mm of precipitation annually, which averages out to around 127mm per month. The wettest month is May, averaging 173mm of rainfall. August and December also tend to see above-average precipitation. The driest month is October, with just 81mm. That's 92mm less than May, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.

Wind

0km/h 5km/h 10km/h 15km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 13km/h Feb Wind Speed: 14km/h Mar Wind Speed: 14km/h Apr Wind Speed: 14km/h May Wind Speed: 12km/h Jun Wind Speed: 10km/h Jul Wind Speed: 9km/h Aug Wind Speed: 9km/h Sep Wind Speed: 9km/h Oct Wind Speed: 11km/h Nov Wind Speed: 11km/h Dec Wind Speed: 12km/h
Wind Speed

Moss Bluff is relatively calm, with an average annual wind speed of 11km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 9km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 13km/h in winter, 13km/h in spring, 9km/h in summer, 10km/h in autumn.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

7 days until Autumn

It is currently summer in Moss Bluff, which began on June 21, 2026. Moss Bluff is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 33°C, while the coldest stretch bottoms out in January near 7°C. Autumn is next, beginning on September 23, 2026 (7 days from now).

Spring

Temperatures range from 14 to 29°C. Rainfall is heavy, totalling around 412mm across the season with a monthly average of 137mm. Winds are generally light, averaging 13km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 24 to 33°C. Rainfall is heavy, totalling around 447mm across the season with a monthly average of 149mm. Winds are generally light, averaging 9km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.

Autumn

Temperatures range from 12 to 32°C. Precipitation is moderate at around 284mm for the season, averaging 95mm per month. Winds are generally light, averaging 10km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 7 to 20°C. Rainfall is heavy, totalling around 382mm across the season with a monthly average of 127mm. Winds are generally light, averaging 13km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan 11°
Feb 15°
Mar 18°
Apr 21°
May 25°
Jun 28°
Jul 28°
Aug 28°
Sep 27°
Oct 22°
Nov 17°
Dec 14°

The best time to visit Moss Bluff is during October and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 81mm per month. By contrast, August can be uncomfortably hot with highs reaching 33°C, while January is the coldest period with lows dropping to 7°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

Monthly Climate Data

The table below shows monthly climate averages for Moss Bluff based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
7 °C
17 °C
13 km/h
141 mm
2 cm
Feb
10 °C
20 °C
14 km/h
89 mm
0 cm
Mar
14 °C
24 °C
14 km/h
103 mm
0 cm
Apr
16 °C
26 °C
14 km/h
136 mm
0 cm
May
21 °C
29 °C
12 km/h
173 mm
0 cm
Jun
24 °C
32 °C
10 km/h
139 mm
0 cm
Jul
25 °C
33 °C
9 km/h
140 mm
0 cm
Aug
25 °C
33 °C
9 km/h
167 mm
0 cm
Sep Current
22 °C
32 °C
9 km/h
121 mm
0 cm
Oct
17 °C
28 °C
11 km/h
81 mm
0 cm
Nov
12 °C
23 °C
11 km/h
81 mm
0 cm
Dec
10 °C
19 °C
12 km/h
152 mm
0 cm
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Metric (°C, km/h)