July weather forecast
Vavuniya, Sri Lanka

By July, one can expect a reduction in temperature and rainfall in Vavuniya, setting the stage for the city's gradual move away from the monsoon months. Meanwhile, a dip in daytime temperatures to an average high of 33°C (91.4°F) corresponds with a nominal increase in humidity levels, making for an overall balanced climate. Strong winds continue to blow over the city. Cloud cover persists over most part of the month, occasionally opening up for residents to witness an open sky. Coupled with a fair amount of sunlight, this month lays down the groundwork for the upcoming festive season.

Temperature

July's arrival brings an average high-temperature of a still tropical 33°C (91.4°F), slightly deviating from June's 32.8°C (91°F). Vavuniya experiences a steady low-temperature of 25.1°C (77.2°F) throughout July.

Heat index

In July, the average heat index is estimated at a blistering 44°C (111.2°F). Notice: Heat cramps and heat exhaustion are likely. Continued strenuous activity might lead to heatstroke.
Heat index determinations are made taking into account the shade and light air movements. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

The months with the lowest humidity in Vavuniya are July through September, with an average relative humidity of 71%.

Rainfall

In Vavuniya, during July, the rain falls for 10.4 days and regularly aggregates up to 25mm (0.98") of precipitation. In Vavuniya, during the entire year, the rain falls for 199.1 days and collects up to 893mm (35.16") of precipitation.

Daylight

In July, the average length of the day in Vavuniya is 12h and 35min.
On the first day of the month, sunrise is at 05:53 and sunset at 18:30. On the last day of July, sunrise is at 05:59 and sunset at 18:29 +0530.

Sunshine

May and July, with an average of 10.2h of sunshine, are months with the most sunshine in Vavuniya, Sri Lanka.

UV index

The months with the highest UV index are February through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 7 in July suggests the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.