In Kuwait there's a subtropical desert climate, with mild winters and very hot summers. The sun usually shines all year round. Here are the average temperatures in the capital Kuwait City.
Kuwait City - Average temperatures
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Min (°C)8101420252930302621149
Max (°C)192228334045464643372721
Min (°F)465057687784868679705748
Max (°F)66728291104113115115109998170

Rainfall, slightly higher than 100 millimetres (4 inches) per year, occurs mainly from November to April, in the form of rare showers, which can sometimes be so intense and concentrated as to cause flooding.
Here is the average precipitation in Kuwait City.
Kuwait City - Average precipitation
MonthJanFebMarAprMayJunJulAugSepOctNovDecYear
Prec.(mm)3015151515000052025140
Prec.(in)1.20.60.60.60.600000.20.815.5
Days65542000014532

Winter, from December to February, is mild: the daily average temperature in January is 13.5 degrees Celsius (56 °F). Nights are cool, on average about 8/10 °C (46/50 °F), but sometimes the temperature can drop to 0 °C (32 °F). Days are mild or pleasantly warm, around 19 °C (66 °F) in January, and 21/22 °C (69/71 °F) in December and February, but with peaks of 27/30 °C (81/86 °F) when the wind blows from the south. In winter the sun often shines, but some cloudy days also possible, even with some rain.
In spring, the prevailing weather is nice and sunny; the temperature rises rapidly, and already in April highs are around 33 °C (92 °F). The wind from the Arabian desert can raise the temperature and bring sandstorms: as early as in April it can exceed 40 °C (104 °F), and in May even 45 °C (113 °F).
Summer in Kuwait is scorchingly hot and windy; the prevailing wind blows from the interior, therefore the influence of the sea is minimal. From June to August, the temperature is normally around 45/46 °C (112/115 °F), and around 29/30 °C (84/87 °F) at night. High-temperature records are around 52/53 °C (125/127 °F). Relative humidity is very low (it often falls below 10%), and combined with the wind, it can cause dehydration. Fortunately, public buildings and hotels are equipped with air conditioning.
The small island of Failaka is usually torrid as well, because it receives the wind from the continent, but sometimes it can be muggy, especially in September and October, in the days when the wind calms down a bit.
In autumn, the weather is still hot and sunny in October, while during the month of November the temperature drops below 30 °C (86 °F).

Kuwait

In Kuwait the sun shines all year round, sometimes however some cloud banks can pass even in summer.
Kuwait City - Sunshine
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Hours788810111111111087

The Persian Gulf, in the northern part where Kuwait is located, is a bit cold for swimming in winter, it becomes warm enough in May, while in summer it's very warm, exceeding 30 °C (86 °F) for a few months.
Kuwait - Sea temperature
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Temp (°C)191718212629313231292622
Temp (°F)666364707984889088847972

When to go



The best time to visit Kuwait runs from mid-November to mid-March. In winter, from December to February, it can sometimes get cold at night, and there can be some rain, but at least you avoid the torrid heat. In early November and late March, sometimes it can be hot. However, in Kuwait, the heat is almost always torrid, therefore not humid, so it is more bearable than in other countries of the Persian Gulf; it's important to drink a lot and to be protected from the sun.

What to pack



In winter: spring/autumn clothes, t-shirt or shirt for warm days, sweater and warm jacket for the evening and cold days, scarf for the wind, possibly an umbrella.
In summer: lightweight, loose fitting clothes, made of natural fabric (cotton or linen), desert turban, sweater and scarf for air conditioned places. For women, it is best to avoid shorts and miniskirts outside tourist resorts.
For the reef, equipment for snorkeling, water shoes or rubber soled shoes.