Malindi, where it's located

In Malindi and in the nearby village of Watamu, the climate is tropical, hot all year round, with a cooler season from June to September, when the daytime temperatures are around 27/28 °C (81/82 °F), and a hotter and humid season from November to April, when the daytime temperatures are just above 30 °C (86 °F), with May and October as intermediate months. The temperature in Malindi varies little throughout the year, but the differences are sufficient to make the warmest period more annoying, whose peak is reached in April, at the onset of the rains (see below). However, the heat is tempered by sea breezes.
Here are the average temperatures.
Malindi - Average temperatures
Min (°C)232424242323222222222323
Max (°C)313132312928272728303131
Min (°F)737575757373727272727373
Max (°F)888890888482818182868888

As regards to the rainfall, it is not particularly abundant, in fact it amounts to about 1,000 millimeters (40 inches) per year, however, there are two rainy seasons due to the two annual zenith passages of the sun (that is, when it shines directly overhead in the sky at mid-day), as often happens at the Equator. The presence of the sea, however, complicates a bit the situation. The rains are abundant from April to June, in the "long rains season", and reach a peak in May, of about 300 mm (12 in). During some years, the rains can be torrential, and can cause flooding and power outages, as happened in May 2012.
From July to September there would be a dry season, but the prevailing south-east trade winds in this season generate some thunderstorms, since the winds come from the sea, from which they collect heat and humidity, especially in the first part, that is, in July, when the sea is warmer.
From December to March there is another dry season, when showers are rare, especially in January and February, which are the driest months, and when it almost never rains.
In October and November, there would be the second rainy season, or the "short rains season", which is more evident in other areas of Kenya, and it's not evident here, although there is some variability between the years, so during some years the rains are plentiful, as happened in October and November 2009, when there have been floods.
Here is the average precipitation.
Malindi - Average precipitation

The amount of sunshine is good all year round, except in the season of the long rains, which, as the name suggests, tend to last longer, compared with showers and thunderstorms that may occur during the period of the "short rains" or in the rest of the year. Therefore, the sunniest period is from August to March, when there are about 9 hours of sunshine per day.
Malindi - Sunshine

Malindi is located near the Equator, so it is sheltered from tropical cyclones, like the rest of Kenya.


The sea near Malindi is warm enough to swim in all year round, since the water temperature never goes below the 25 °C (77 °F) of August, as can be seen in the following table.
Malindi - Sea temperature
Temp (°C)282829292827262526262828
Temp (°F)828284848281797779798282

Best Time

The best months to travel to Malindi are August and September, that is, the driest ones within the cool season. In this period, the temperature is pleasant, even though there's a lively breeze, which can make the sea a bit rough. From December to March it's sunny and the rains are rare, but the heat is felt; in return, the sea is calmer.
The worst time is that of the long rains, from April to June; as a precaution, the months of October and November can be avoided as well, since during some years they can be very rainy.