# Ishigaki in May: weather

Ishigaki, Japan (Asia). Ten-year climatology (2015-2024), not a forecast. Page: https://beaufixe.net/en/weather/ishigaki/may

## Key figures

| Indicator | Value |
|---|---|
| Afternoon (mean daily max) | 27.5 °C |
| Night (mean daily min) | 24.3 °C |
| Sea (surface) | 27 °C |
| Rainy days (≥ 1 mm) | 21 / month |
| Relative humidity | 84 % |
| Probability of a 25 °C+ afternoon | 91 % |

## Month by month

| Month | Afternoon | Night | Sea | Rain (d) |
|---|---|---|---|---|
| January | 20.7 °C | 17.7 °C | 23.8 °C | 16 |
| February | 21.2 °C | 18.1 °C | 23.3 °C | 14 |
| March | 22.7 °C | 19.3 °C | 23.8 °C | 15 |
| April | 25 °C | 21.7 °C | 25 °C | 17 |
| May | 27.5 °C | 24.3 °C | 27 °C | 21 |
| June | 29.5 °C | 26.7 °C | 28.5 °C | 21 |
| July | 30.5 °C | 27.6 °C | 29.5 °C | 22 |
| August | 30.3 °C | 27.3 °C | 29.6 °C | 23 |
| September | 29.4 °C | 26.4 °C | 29 °C | 22 |
| October | 27.7 °C | 24.8 °C | 27.8 °C | 16 |
| November | 25.5 °C | 22.7 °C | 26.5 °C | 15 |
| December | 22.4 °C | 19.6 °C | 25 °C | 16 |

Best months : October, November, July.

## Before you go

- **Safety** : No specific restrictions. Usual precautions apply. (official advice updated 28 August 2026 — https://www.gov.uk/foreign-travel-advice/japan)
- **Entry** (British passport) : Visa issued on arrival for stays of up to 90 days. Passport valid until your return date. A 'visa on arrival' stamp is issued for up to 90 days with no advance application; a blank page is needed for the stamp; 90-day extension possible. (per the UK Foreign Office, 28 August 2026)
- **Vaccines** : hepatitis B if you are not already vaccinated; hepatitis A and Japanese encephalitis depending on activities and areas visited. Routine vaccines up to date (measles in particular).
- **Yellow fever** : No yellow fever locally, vaccine not recommended. No entry requirement.
- **Malaria** : None.
  (per the CDC, page reviewed 25 August 2026 — https://wwwnc.cdc.gov/travel/destinations/traveler/none/japan)

## Sources

Air, rain, humidity: ERA5-Land reanalysis (Copernicus) served by Open-Meteo (CC BY 4.0). Sea: NOAA OISST. Safety: FCDO (OGL v3), zones reviewed by Beau Fixe. Entry: France Diplomatie (Licence Ouverte 2.0) / FCDO. Health: CDC (public domain). Details: https://beaufixe.net/en/legal#sources

Beau Fixe — https://beaufixe.net — not a forecast; only the authorities are authoritative for safety, entry rules and health.