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🇨🇷 Weather in Tamarindo in May
This is what the weather in Tamarindo (Guanacaste, Costa Rica) was like in May over the years 2017–2026.
Key facts at a glance
Prevailing weather: Rain
Avg. daytime high
32.8 °C
30.1 °C – 35.6 °C
Avg. night-time low
25.7 °C
24.7 °C – 26.6 °C
Avg. rain days in period
22.1
71 % of days · ≥ 1.0 mm
Avg. precipitation in period
330 mm
100 mm – 1,044 mm
Avg. cloud cover
75 %
This data source has no sunshine hours – average cloud cover is shown instead.
Avg. sea temperature
30.2 °C
Sea temperature available for 3 of 10 years.
Extremes: Highest temperature 38.3 °C (14 May 2023) · Lowest temperature 22.8 °C (17 May 2021) · Avg. daily peak wind 16 km/h
Weather mix of all days
- 19Sunny
- 38Partly cloudy
- 32Cloudy
- 77Light rain
- 144Rain
Summary
- On average 32.8 °C during the day and 25.7 °C at night.
- On average 22.1 rain days (Rain day = at least 1.0 mm of precipitation) with 330 mm of precipitation in total.
- The sea averaged 30.2 °C.
- Prevailing weather: Rain.
- Warmest year: 2023 (avg. 35.6 °C), coolest: 2017 (avg. 30.1 °C).
- Wettest year: 2024 (1,044 mm), driest: 2026 (100 mm).
- Extremes: 38.3 °C on 14 May 2023 and 22.8 °C on 17 May 2021.
Overall values from all 10 years. How is this calculated?
Charts
Temperatures per year
Average over your travel period
Avg. daytime high: 2017 30°, 2018 32°, 2019 32°, 2020 34°, 2021 32°, 2022 31°, 2023 36°, 2024 34°, 2025 33°, 2026 35°. Avg. night-time low: 2017 25°, 2018 25°, 2019 26°, 2020 26°, 2021 25°, 2022 25°, 2023 26°, 2024 27°, 2025 26°, 2026 26°. Sea temperature: 2017 –, 2018 –, 2019 –, 2020 –, 2021 –, 2022 –, 2023 30°, 2024 –, 2025 30°, 2026 30°.
Precipitation & rain days
Precipitation (mm): 2017 498, 2018 284, 2019 347, 2020 218, 2021 175, 2022 264, 2023 181, 2024 1,044, 2025 192, 2026 100.
Year by year
2026
Avg. max34.9°Avg. min25.9°- Rain days
- 14 Rain days
- Precipitation
- 100 mm
- Avg. cloud cover
- 69 % cloudy
- Sea temperature
- 30.4 °C
Max 36.9 °C · Min 24.5 °C
2025
Avg. max32.7°Avg. min25.8°- Rain days
- 26 Rain days
- Precipitation
- 192 mm
- Avg. cloud cover
- 77 % cloudy
- Sea temperature
- 29.8 °C
Max 35.4 °C · Min 24.8 °C
2024
Avg. max34.1°Avg. min26.6°- Rain days
- 25 Rain days
- Precipitation
- 1,044 mm
- Avg. cloud cover
- 67 % cloudy
- Sea temperature
- –
Max 37.9 °C · Min 25.3 °C
2023
Avg. max35.6°Avg. min26.4°- Rain days
- 14 Rain days
- Precipitation
- 181 mm
- Avg. cloud cover
- 61 % cloudy
- Sea temperature
- 30.3 °C
Max 38.3 °C · Min 25.1 °C
2022
Avg. max31.4°Avg. min25.3°- Rain days
- 28 Rain days
- Precipitation
- 264 mm
- Avg. cloud cover
- 80 % cloudy
- Sea temperature
- –
Max 33.9 °C · Min 24.6 °C
2021
Avg. max32.0°Avg. min24.7°- Rain days
- 13 Rain days
- Precipitation
- 175 mm
- Avg. cloud cover
- 67 % cloudy
- Sea temperature
- –
Max 34.0 °C · Min 22.8 °C
2020
Avg. max33.5°Avg. min25.9°- Rain days
- 20 Rain days
- Precipitation
- 218 mm
- Avg. cloud cover
- 82 % cloudy
- Sea temperature
- –
Max 37.2 °C · Min 23.8 °C
2019
Avg. max31.6°Avg. min25.8°- Rain days
- 27 Rain days
- Precipitation
- 347 mm
- Avg. cloud cover
- 89 % cloudy
- Sea temperature
- –
Max 37.2 °C · Min 24.5 °C
2018
Avg. max32.3°Avg. min25.3°- Rain days
- 24 Rain days
- Precipitation
- 284 mm
- Avg. cloud cover
- 78 % cloudy
- Sea temperature
- –
Max 37.5 °C · Min 24.0 °C
2017
Avg. max30.1°Avg. min25.4°- Rain days
- 30 Rain days
- Precipitation
- 498 mm
- Avg. cloud cover
- 85 % cloudy
- Sea temperature
- –
Max 32.0 °C · Min 24.5 °C
Frequently asked questions
- How warm is it in Tamarindo in May?
- Daytime highs averaged 32.8 °C, night-time lows 25.7 °C. The highest value of the past 10 years was 38.3 °C (14 May 2023), the lowest 22.8 °C (17 May 2021).
- How often does it rain in Tamarindo in May?
- On average there were 22.1 rain days (at least 1 mm) with 330 mm of precipitation in total.
- How warm is the sea in Tamarindo in May?
- The sea temperature averaged 30.2 °C (open-sea point approx. 3 km from the town).
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Other destinations in May
Data sources
- Weather data
- Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. Snow depth is the model value for the grid cell, not the depth on the slopes. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains. - Sea temperature
- MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis) - Sea measuring point approx. 3 km from the location (10.310, -85.860)
- Place search
- Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)