May weather forecast
Louisiana, USA

May in Louisiana signifies the tail end of spring, and a transition towards the hot and humid summer season. The southern parts of the state, including locales like New Orleans, witness daytime highs often ranging from 84°F (28.9°C) to 88°F (31.1°C). In the northern regions, which include cities such as Alexandria, temperatures typically span from 79°F (26.1°C) to 83°F (28.3°C).

Nights in May are warmer compared to the preceding months. In southern areas, nighttime lows generally sit between 64°F (17.8°C) and 68°F (20°C). Meanwhile, the northern territories experience temperatures from 60°F (15.6°C) to 64°F (17.8°C).

May typically contends with April for the title of the wettest month in Louisiana. It's not unusual for the state to accumulate up to 20" (508mm) of rainfall during this month, with some days registering as much as 10" (254mm) during particularly heavy downpours. Thunderstorms are frequent, often accompanied by intense tropical rain showers that can lead to localized flooding.

Compared to April, May experiences a further uptick in both temperature and humidity. This month's warm and moist conditions set the stage for the impending summer, with both flora and fauna in full flourish across the state. By the end of May, residents and visitors can already sense the onset of the hot and steamy summer days that Louisiana is renowned for.

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• New Orleans - May »
  In New Orleans during May, the rain falls for 8.6 days and regularly aggregates up to 0.75" (19mm) of precipitation. On the first day of May in New Orleans sunrise is at 6:17 am and sunset at 7:37 pm.
• Baton Rouge - May »
  May through August, with an average maximum UV index of 7, are months with the highest UV index in Baton Rouge, Louisiana. In Baton Rouge, Louisiana, in May, it is raining for 14.7 days, with typically 2.83" (72mm) of accumulated precipitation.
• Shreveport - May »
  The months with the highest UV index in Shreveport, Louisiana, are May through August, with an average maximum UV index of 7. In Shreveport, during the entire year, the rain falls for 103.9 days and collects up to 11.54" (293mm) of precipitation.
• Lafayette - May »
  In Lafayette, during May, the rain falls for 10.3 days and regularly aggregates up to 1.18" (30mm) of precipitation. In Lafayette, during May, the rain falls for 10.3 days and regularly aggregates up to 1.18" (30mm) of precipitation.
• Lake Charles - May »
  In Lake Charles during the entire year, the rain falls for 182.1 days and collects up to 39.25" (997mm) of precipitation. On the first day of May in Lake Charles sunrise is at 6:29 am and sunset at 7:50 pm.
• Kenner - May »
  On the first day of May in Kenner sunrise is at 6:17 am and sunset at 7:38 pm. On the first day of May in Kenner, sunrise is at 6:17 am and sunset at 7:38 pm.
• Bossier City - May »
  On the last day of the month, in Bossier City, sunrise is at 6:08 am and sunset at 8:16 pm CDT. In Bossier City during May, the rain falls for 10 days and regularly aggregates up to 1.14" (29mm) of precipitation.
• Monroe - May »
  On the first day of May in Monroe sunrise is at 6:21 am and sunset at 7:49 pm. Monroe experiences a minor temperature shift with the start of May, with average high-temperatures moving from 75.2°F (24°C) in April to a still warm 83.5°F (28.6°C).
• Alexandria - May »
  On the first day of May in Alexandria sunrise is at 6:24 am and sunset at 7:49 pm. In Alexandria snow does not fall in March through November.
• Houma - May »
  With the onset of May, Houma's weather sees a minor temperature rise, transitioning from 77.5°F (25.3°C) in April to a still warm 83.7°F (28.7°C). In Houma, during the entire year, the rain falls for 142.2 days and collects up to 18.86" (479mm) of precipitation.
• New Iberia - May »
  In New Iberia in May, it is raining for 8.3 days, with typically 0.94" (24mm) of accumulated precipitation. In New Iberia, during the entire year, the rain falls for 129.6 days and collects up to 15.83" (402mm) of precipitation.
• Slidell - May »
  On the last day of the month, in Slidell, Louisiana, sunrise is at 5:58 am and sunset at 7:55 pm CDT. The arrival of May in Slidell, Louisiana, witnesses a small shift in the average high-temperature, moving from 77.4°F (25.2°C) in April to a still warm 83.8°F (28.8°C).