Kenya
Watamu in May: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Watamu in May is climatically well suited to beach holidays. The average daily high is around 29 °C, and the sea is about 28 °C. With about 22 rainy days it is very wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
59/100 · #9
Warmth
#8
Dryness
#11
Sun
#11
Sea warmth
#4
Published best categories: none
Watamu · MayPhoto: Filip Lachowski · CC BY-SA 2.0Climate facts
- Average high
- 29 °C
- Average low
- 26 °C
- Sea
- 28 °C
- Rainy days (est.)
- 22 rainy days (est.)
- Sun (est.)
- 6 h/day
- Humidity
- 80 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| April | 30 | 27 | 23 | 134 | 7.3 | 80 | 3.5 | 29 | 54 |
| May (selected) | 29 | 26 | 22 | 194 | 6.2 | 80 | 4.6 | 28 | 59 |
| June | 28 | 25 | 14 | 71 | 6.2 | 77 | 5.2 | 27 | 72 |
How do the previous and next months compare?
Baseline: May (59/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| April | -5 | +1.2 °C | +0.8 °C | +1 | -60.7 mm | +1.1 h | -0.6 % | -1.1 m/s | +1 °C |
| June | +13 | -1 °C | -1.1 °C | -8.4 | -123.2 mm | ±0 h | -3.6 % | +0.6 m/s | -1.1 °C |
All twelve months in context

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Where to stay in Watamu
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Useful next decisions
Frequently asked questions
How warm is Watamu in May?
The average daily high is around 29 °C, with an average daily low of about 26 °C.
Can you swim in Watamu in May?
The sea is about 28 °C (very warm).
Does it rain a lot in Watamu in May?
The curated estimate is about 22 rainy days per month, not a directly measured long-term average. Total precipitation averages around 194 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Watamu?
By the climate score, January, July, August and September are the strongest months for Watamu. For a beach trip: January, July, August and September. May is not among them.