How warm is it in Fira in January?

Daytime highs averaged 15.3 °C, night-time lows 13.4 °C. The highest value of the past 10 years was 19.8 °C (7 Jan 2026), the lowest 6.6 °C (8 Jan 2017).

How often does it rain in Fira in January?

On average there were 15.3 rain days (at least 1 mm) with 104 mm of precipitation in total.

🇬🇷 Weather in Fira in January

This is what the weather in Fira (Santorini, Greece) was like in January in 2017–2026.

Key facts at a glance

Prevailing weather: Light rain

Avg. daytime high

15.3 °C

13.4 °C – 16.9 °C

Avg. night-time low

13.4 °C

11.4 °C – 15.4 °C

Avg. rain days in period

15.3

49 % of days · ≥ 1.0 mm

Avg. precipitation in period

104 mm

60.4 mm – 179 mm

Avg. cloud cover

57 %

This data source has no sunshine hours – average cloud cover shown instead.

Avg. sea temperature

–

Sea temperature unavailable for today (daily limit).

Extremes: Highest temperature 19.8 °C (7 Jan 2026) · Lowest temperature 6.6 °C (8 Jan 2017) · Avg. daily peak wind 35 km/h

Weather mix of all days

55Sunny
70Partly cloudy
32Cloudy
81Light rain
72Rain

Summary

On average 15.3 °C during the day and 13.4 °C at night.
On average 15.3 rain days (Rain day = at least 1.0 mm of precipitation) with 104 mm of precipitation in total.
Prevailing: Light rain.
Warmest year: 2025 (avg. 16.9 °C), coolest: 2017 (avg. 13.4 °C).
Wettest year: 2019 (179 mm), driest: 2018 (60.4 mm).
Extremes: 19.8 °C on 7 Jan 2026 and 6.6 °C on 8 Jan 2017.

Overall values from all 10 years. How is this calculated?

Temperatures per year

Average over your travel period

Precipitation & rain days

Year by year

2026
Avg. max16.5°Avg. min14.3°
Rain days
19 Rain days
Precipitation
152 mm
Avg. cloud cover
58 % cloudy
Sea temperature
–
Max 19.8 °C · Min 10.0 °C
2025
Avg. max16.9°Avg. min15.4°
Rain days
13 Rain days
Precipitation
98.4 mm
Avg. cloud cover
43 % cloudy
Sea temperature
–
Max 18.3 °C · Min 13.2 °C
2024
Avg. max15.9°Avg. min14.0°
Rain days
13 Rain days
Precipitation
83.5 mm
Avg. cloud cover
68 % cloudy
Sea temperature
–
Max 19.0 °C · Min 10.1 °C
2023
Avg. max16.1°Avg. min14.3°
Rain days
15 Rain days
Precipitation
78.0 mm
Avg. cloud cover
39 % cloudy
Sea temperature
–
Max 18.2 °C · Min 10.4 °C
2022
Avg. max14.3°Avg. min12.0°
Rain days
12 Rain days
Precipitation
98.5 mm
Avg. cloud cover
61 % cloudy
Sea temperature
–
Max 17.6 °C · Min 7.0 °C
2021
Avg. max16.2°Avg. min14.3°
Rain days
18 Rain days
Precipitation
91.5 mm
Avg. cloud cover
64 % cloudy
Sea temperature
–
Max 19.7 °C · Min 9.1 °C
2020
Avg. max14.2°Avg. min12.3°
Rain days
10 Rain days
Precipitation
65.8 mm
Avg. cloud cover
56 % cloudy
Sea temperature
–
Max 17.1 °C · Min 9.8 °C
2019
Avg. max14.8°Avg. min12.6°
Rain days
26 Rain days
Precipitation
179 mm
Avg. cloud cover
70 % cloudy
Sea temperature
–
Max 17.4 °C · Min 8.2 °C
2018
Avg. max15.1°Avg. min13.1°
Rain days
10 Rain days
Precipitation
60.4 mm
Avg. cloud cover
45 % cloudy
Sea temperature
–
Max 17.1 °C · Min 8.3 °C
2017
Avg. max13.4°Avg. min11.4°
Rain days
17 Rain days
Precipitation
128 mm
Avg. cloud cover
63 % cloudy
Sea temperature
–
Max 16.6 °C · Min 6.6 °C

Frequently asked questions

How warm is it in Fira in January?: Daytime highs averaged 15.3 °C, night-time lows 13.4 °C. The highest value of the past 10 years was 19.8 °C (7 Jan 2026), the lowest 6.6 °C (8 Jan 2017).
How often does it rain in Fira in January?: On average there were 15.3 rain days (at least 1 mm) with 104 mm of precipitation in total.

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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. 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)
Place search: Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)