Hattiesburg

Planning your day in Hattiesburg? In this section, you will find the latest weather information, including current data, forecasts, and helpful charts.

The climate in Hattiesburg, USA, features distinct seasons with hot summers and mild winters. The temperature patterns are characteristic of a subtropical climate. A notable feature is that while there are many rainy days throughout the year, especially during the summer, the total monthly precipitation remains relatively low according to the data.

The summer months, from June to August, are the hottest and feature the highest number of rainy days. Average daily temperatures during this period hover around 27-28°C, with highs reaching up to 32-33°C. For instance, July stands out for having the most rainy days (up to 21). Winters in Hattiesburg, from December to February, are mild, with average temperatures around 10-14°C. Spring and autumn are comfortable transitional seasons with moderate temperatures and fewer rainy days compared to summer; October is the month with the fewest wet days and minimal precipitation.

The climate in Hattiesburg is characterized by noticeable seasonal temperature fluctuations throughout the year. The coldest month is typically January, with an average temperature of about 10.5°C. During this period, minimum night temperatures can drop to an average of 5.6°C, while daytime highs reach approximately 15.3°C. In contrast, the heat peaks in the summer months, particularly July and August. In August, the hottest month, the average temperature reaches 28.2°C, with daytime highs regularly rising to 32.9°C and night lows staying around 23.6°C. Thus, the annual temperature cycle shows a transition from cool winters to hot summers.

The summer period in Hattiesburg, spanning June, July, and August, is characterized by hot and fairly humid weather. Average daytime temperatures during these months consistently exceed 32°C, creating sweltering conditions. For example, in July, the average maximum temperature is 32.6°C, and in June, it is 32.1°C. Nights also remain very warm, with minimum temperatures rarely dropping below 22-23°C (22.4°C in June, 23.7°C in July). The significant number of rainy days in the summer months (e.g., 21 days in July and 17 days in June and August) can contribute to the muggy feeling typical of this time of year.

Winter in Hattiesburg, lasting from December to February, is mild and cool, without extreme frosts. As mentioned, January is the coldest month with an average temperature of 10.5°C. In December, the average temperature is 12.6°C, and by February, it warms up to 14.1°C. Daytime temperatures in winter can rise to 15-19°C (for instance, 17.2°C in December and 19.1°C in February), while night lows range between 5-9°C (8.1°C in December, 5.6°C in January). Throughout the year, there is a noticeable difference between daytime and nighttime temperatures, averaging around 9-11°C. This means that even on hot summer days, evenings bring some relief, and winter nights are significantly cooler than the days.

In Hattiesburg, precipitation occurs throughout the year, and the city does not have a distinct dry season. Monthly rainfall varies between 2 mm and 5 mm, but the frequency of rainy days changes more noticeably depending on the season.

The wettest period, especially in terms of rain frequency, is summer. July is the rainiest month, with precipitation recorded on average for 21 days. June and August also see a high frequency of rain, with 17 wet days each. In terms of precipitation volume, the highest values (5 mm) occur in April, July, and August. Generally, while summer rains are frequent, they don't necessarily result in a high total moisture volume each month, as the overall precipitation remains moderate.

The driest month of the year is October, with an average of only 2 mm of precipitation and the number of rainy days dropping to 7. September and November are also among the drier months, with 3 mm of rain and 11 and 8 rainy days respectively. Winter and spring (December to May) are characterized by a moderate amount of precipitation, around 4-5 mm per month, with approximately 11-12 rainy days each month. Given the temperature patterns, precipitation in Hattiesburg falls primarily as rain.

When planning a trip to Hattiesburg, it's important to consider its humid subtropical climate. Summers here are hot and humid with frequent rain, while winters are mild but also rainy. Regardless of the season, comfortable walking shoes will be your best friend. An umbrella or a light waterproof jacket will also come in handy year-round, as rain is a regular occurrence in Hattiesburg. Dressing in layers will help you easily adapt to temperature changes, especially when moving from the outdoor heat into air-conditioned buildings.

During the summer months, from May to September, when average temperatures stay around 24-28°C and highs can exceed 32°C—and with the most rainy days occurring (up to 21 days in July)—you should opt for light and breathable clothing made of natural fabrics like cotton or linen. Shorts, T-shirts, and sundresses are perfect. Don't forget sunscreen, sunglasses, and a hat to protect yourself from the strong southern sun. Even in the heat, a compact umbrella or a very light raincoat will be very useful due to frequent summer showers.

For a trip during the cooler months, from October to April, your wardrobe should be more varied. In winter (December-February), when average temperatures range from 10°C to 14°C, pack warm items: sweaters, fleece jackets, jeans or thick trousers, and a mid-season jacket. During the transitional seasons—spring (March-April) and autumn (October-November)—the weather can be changeable. You'll need T-shirts and light blouses as well as warmer layers like a cardigan or a light jacket. Don't forget rain protection during this period either, as rain is still possible, though less intense than in summer.