# Climate Insights for Lafayette

*Source: [Airpult](https://airpult.com/climate/us/lafayette/7667917599): San Juan County, Louisiana, United States*

The climate in Lafayette is warm and mild. The average annual temperature is 21°C and approximately 1381mm of precipitation falls per year. Lafayette receives a notable amount of rainfall throughout the year, including during its driest month. Lafayette 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.

## Key insights

- **Hottest month:** August (peak 33°C)
- **Coldest month:** January (low 7°C)
- **Wettest month:** August (161 mm)
- **Best time to visit:** March, October, November

## Monthly climate data

The table below shows monthly climate averages for Lafayette 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 | Avg low (°C) | Avg high (°C) | Mean (°C) | Precip (mm) | Wind (km/h) | Snow (cm) |
| --- | ---: | ---: | ---: | ---: | ---: | ---: |
| Jan | 7 | 17 | 11 | 129 | 13 | 1 |
| Feb | 10 | 21 | 15 | 97 | 14 | 0 |
| Mar | 14 | 24 | 18 | 100 | 14 | 0 |
| Apr | 16 | 26 | 21 | 110 | 14 | 0 |
| May | 20 | 30 | 25 | 135 | 11 | 0 |
| Jun | 24 | 32 | 28 | 116 | 10 | 0 |
| Jul | 25 | 33 | 28 | 149 | 8 | 0 |
| Aug | 24 | 33 | 28 | 161 | 9 | 0 |
| Sep (current) | 22 | 32 | 27 | 112 | 9 | 0 |
| Oct | 17 | 28 | 22 | 67 | 11 | 0 |
| Nov | 12 | 23 | 17 | 80 | 12 | 0 |
| Dec | 10 | 20 | 14 | 125 | 12 | 1 |

## Temperature

Temperatures in Lafayette 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 10°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

Lafayette is a fairly wet location, receiving approximately 1381mm of precipitation annually, which averages out to around 115mm per month. The wettest month is August, averaging 161mm of rainfall. July and May also tend to see above-average precipitation. The driest month is October, with just 67mm. That's 94mm less than August, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.

## Wind

Lafayette 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 February, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/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

Currently it is **summer** (astronomical) / **fall** (meteorological) in Lafayette.
Autumn begins September 23, 2026 (8 days from now).

| Season | Begins |
| --- | --- |
| Spring | March 20 |
| Summer | June 21 |
| Autumn | September 23 |
| Winter | December 21 |

It is currently summer in Lafayette, which began on June 21, 2026. Lafayette 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 (8 days from now).

### Spring

Temperatures range from 14 to 30°C. Rainfall is heavy, totalling around 346mm across the season with a monthly average of 115mm. 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 426mm across the season with a monthly average of 142mm. 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 259mm for the season, averaging 86mm 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 21°C. Rainfall is heavy, totalling around 350mm across the season with a monthly average of 117mm. 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

Recommended months: March, October, November.

The best time to visit Lafayette is during March, October and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 82mm 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.